All of lore.kernel.org
 help / color / mirror / Atom feed
From: Wu Fengguang <fengguang.wu@intel.com>
To: Rik van Riel <riel@redhat.com>
Cc: Greg Thelen <gthelen@google.com>, Jan Kara <jack@suse.cz>,
	"bsingharora@gmail.com" <bsingharora@gmail.com>,
	Hugh Dickins <hughd@google.com>, Michal Hocko <mhocko@suse.cz>,
	linux-mm@kvack.org, Mel Gorman <mgorman@suse.de>,
	Ying Han <yinghan@google.com>,
	"hannes@cmpxchg.org" <hannes@cmpxchg.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>,
	Minchan Kim <minchan.kim@gmail.com>
Subject: Re: reclaim the LRU lists full of dirty/writeback pages
Date: Sun, 12 Feb 2012 14:45:17 +0800	[thread overview]
Message-ID: <20120212064516.GA20163@localhost> (raw)
In-Reply-To: <20120212031029.GA17435@localhost>

[-- Attachment #1: Type: text/plain, Size: 409223 bytes --]

> ext4 performs pretty good now, here is the result for one single
> memcg dd:
> 
>         dd if=/dev/zero of=/fs/f$i bs=4k count=1M

Here is one full writeback trace collected with

echo 1 > /debug/tracing/events/writeback/enable
echo 0 > /debug/tracing/events/writeback/global_dirty_state/enable
echo 0 > /debug/tracing/events/writeback/wbc_writepage/enable
echo 0 > /debug/tracing/events/writeback/writeback_wait_iff_congested/enable

Looking at the reason=pageout lines, the chunk size at queue time is
mostly nr_pages=256, and since it's a sequential dd with very good
locality, lots of the pageout works have been extended to
nr_pages=2048 at the time of execution.

The progress is a bit bumpy in that the writeback_queue/writeback_exec
lines and the writeback_congestion_wait lines tend to come together in
batches. According to the attached graphs (generated on a private
task_io trace event), the dd write progress is reasonably smooth.
There are several sudden jump of both x and y values, maybe it's
caused by lost trace samples.

# tracer: nop
#
# entries-in-buffer/entries-written: 127889/168807   #P:4
#
#                              _-----=> irqs-off
#                             / _----=> need-resched
#                            | / _---=> hardirq/softirq
#                            || / _--=> preempt-depth
#                            ||| /     delay
#           TASK-PID   CPU#  ||||    TIMESTAMP  FUNCTION
#              | |       |   ||||       |         |
              dd-4267  [002] ....  8250.326788: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8250.335124: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8250.343750: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8250.356916: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8250.361203: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8251.323386: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8251.363306: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8251.405320: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8251.427430: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8251.458557: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8251.476925: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8251.592810: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8251.647229: writeback_congestion_wait: usec_timeout=100000 usec_delayed=54000
              dd-4267  [002] ....  8251.682142: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8251.728420: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8251.754083: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8251.819186: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=24320
       flush-8:0-4272  [002] ....  8251.823270: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=24320
       flush-8:0-4272  [002] ....  8251.826068: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=26368
       flush-8:0-4272  [002] ....  8251.832939: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=28416
       flush-8:0-4272  [002] ....  8251.839785: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=30464
       flush-8:0-4272  [002] ....  8251.846554: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=32512
       flush-8:0-4272  [002] ....  8251.852810: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=34560
       flush-8:0-4272  [002] ....  8251.858865: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=9223372036854775807 sync_mode=0 kupdate=0 range_cyclic=1 background=1 reason=background ino=0 offset=0
       flush-8:0-4272  [002] ....  8251.858866: writeback_queue_io: bdi 8:0: older=4302923541 age=0 enqueue=0 reason=background
       flush-8:0-4272  [002] ....  8251.860726: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=37632 to_write=1024 wrote=1024
       flush-8:0-4272  [002] ....  8251.860729: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=9223372036854774783 sync_mode=0 kupdate=0 range_cyclic=1 background=1 reason=background ino=0 offset=0
       flush-8:0-4272  [002] ....  8251.860730: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=9223372036854774783 sync_mode=0 kupdate=0 range_cyclic=1 background=1 reason=background ino=0 offset=0
       flush-8:0-4272  [002] ....  8251.860731: writeback_queue_io: bdi 8:0: older=4302923543 age=0 enqueue=0 reason=background
       flush-8:0-4272  [002] ....  8252.607338: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=51712 to_write=1024 wrote=1024
       flush-8:0-4272  [002] ....  8252.607341: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=9223372036854774783 sync_mode=0 kupdate=0 range_cyclic=1 background=1 reason=background ino=0 offset=0
       flush-8:0-4272  [002] ....  8252.607342: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=9223372036854774783 sync_mode=0 kupdate=0 range_cyclic=1 background=1 reason=background ino=0 offset=0
       flush-8:0-4272  [002] ....  8252.607343: writeback_queue_io: bdi 8:0: older=4302924290 age=0 enqueue=0 reason=background
       flush-8:0-4272  [002] ....  8253.026787: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=63232
       flush-8:0-4272  [002] ....  8253.026915: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=63232
       flush-8:0-4272  [002] ....  8253.027360: writeback_pages_written: 316
       flush-8:0-4272  [002] ....  8253.027437: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=63744
       flush-8:0-4272  [002] ....  8253.029744: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=63744
       flush-8:0-4272  [002] ....  8253.030492: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=64512
       flush-8:0-4272  [002] ....  8253.033488: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=65280
       flush-8:0-4272  [002] ....  8253.036827: writeback_pages_written: 3584
       flush-8:0-4272  [002] ....  8253.040560: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=67328
       flush-8:0-4272  [002] ....  8253.042129: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=67328
       flush-8:0-4272  [002] ....  8253.045098: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=69376
       flush-8:0-4272  [002] ....  8253.050144: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=71424
##### CPU 3 buffer started ####
       flush-8:0-4272  [002] ....  8253.485155: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=75008
       flush-8:0-4272  [002] ....  8253.488248: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=75008
       flush-8:0-4272  [002] ....  8253.488254: writeback_pages_written: 256
              dd-4267  [003] ....  8253.587708: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8253.616408: writeback_congestion_wait: usec_timeout=100000 usec_delayed=28000
              dd-4267  [002] ....  8253.627826: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8253.678663: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=75264
       flush-8:0-4272  [002] ....  8253.682232: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=75264
       flush-8:0-4272  [002] ....  8253.682240: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=9223372036854775807 sync_mode=0 kupdate=0 range_cyclic=1 background=1 reason=background ino=0 offset=0
       flush-8:0-4272  [002] ....  8253.682240: writeback_queue_io: bdi 8:0: older=4302925365 age=0 enqueue=0 reason=background
       flush-8:0-4272  [002] ....  8253.684064: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=76544 to_write=1024 wrote=1024
       flush-8:0-4272  [002] ....  8253.684067: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=9223372036854774783 sync_mode=0 kupdate=0 range_cyclic=1 background=1 reason=background ino=0 offset=0
       flush-8:0-4272  [002] ....  8253.684069: writeback_pages_written: 1280
              dd-4267  [002] ....  8253.730357: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8253.814751: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8253.850639: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8253.870770: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8253.897749: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8254.014484: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8254.113342: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8254.123898: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=76544
       flush-8:0-4272  [002] ....  8254.128327: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=76544
       flush-8:0-4272  [002] ....  8254.131253: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=78592
       flush-8:0-4272  [002] ....  8254.138062: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=80640
       flush-8:0-4272  [002] ....  8254.144703: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=82688
       flush-8:0-4272  [002] ....  8254.230122: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=84736
       flush-8:0-4272  [002] ....  8254.235649: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=86784
       flush-8:0-4272  [002] ....  8254.241491: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=88832
       flush-8:0-4272  [002] ....  8254.246782: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=90880
       flush-8:0-4272  [002] ....  8254.249905: writeback_pages_written: 15360
       flush-8:0-4272  [002] ....  8254.282817: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=91904
       flush-8:0-4272  [002] ....  8254.285648: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=91904
       flush-8:0-4272  [002] ....  8254.289279: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=93952
       flush-8:0-4272  [002] ....  8254.292899: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=94976
       flush-8:0-4272  [002] ....  8254.295917: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=97024
       flush-8:0-4272  [002] ....  8254.299985: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=99072
       flush-8:0-4272  [002] ....  8254.300865: writeback_pages_written: 7424
              dd-4267  [003] ....  8254.393293: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8254.536096: writeback_congestion_wait: usec_timeout=100000 usec_delayed=82000
              dd-4267  [002] ....  8254.625314: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=99328
              dd-4267  [002] ....  8254.625340: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=99328
              dd-4267  [002] ....  8254.626413: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8254.630694: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
      flush-0:16-4223  [003] ....  8255.307759: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=45399 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8255.307762: writeback_queue_io: bdi 0:16: older=4302896992 age=30000 enqueue=0 reason=periodic
      flush-0:16-4223  [003] ....  8255.307762: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=45399 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8255.307764: writeback_pages_written: 0
              dd-4267  [002] ....  8255.318648: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=99584
              dd-4267  [002] ....  8255.318664: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=99584
              dd-4267  [002] ....  8255.320138: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=101632
              dd-4267  [002] ....  8255.321638: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=103680
              dd-4267  [002] ....  8255.323080: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=105728
              dd-4267  [002] ....  8255.324538: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=107776
              dd-4267  [002] ....  8255.326007: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=109824
              dd-4267  [002] ....  8255.327498: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=111872
              dd-4267  [002] ....  8255.328994: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=113920
              dd-4267  [002] ....  8255.330478: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=115968
              dd-4267  [002] ....  8255.332007: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=118016
              dd-4267  [002] ....  8255.333557: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=120064
              dd-4267  [002] ....  8255.335096: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=122112
              dd-4267  [002] ....  8255.341094: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8255.345525: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8255.350156: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [003] ....  8255.767124: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_SYNC|I_DIRTY_DATASYNC|I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=127007 to_write=1024 wrote=2079
       flush-8:0-4272  [003] ....  8255.767127: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=21763 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8255.767128: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=21763 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8255.767128: writeback_queue_io: bdi 8:0: older=4302897451 age=30000 enqueue=0 reason=periodic
              dd-4267  [002] ....  8255.913486: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [003] ....  8256.148983: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=141755 to_write=1024 wrote=5901
       flush-8:0-4272  [003] ....  8256.148987: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=7015 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8256.148988: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=7015 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8256.148988: writeback_queue_io: bdi 8:0: older=4302897833 age=30000 enqueue=0 reason=periodic
              dd-4267  [002] ....  8256.369200: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [003] ....  8256.628529: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=150440 to_write=1024 wrote=6452
       flush-8:0-4272  [003] ....  8256.628533: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=-1670 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8256.628536: writeback_pages_written: 50856
       flush-8:0-4272  [003] ....  8256.628538: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=147456
       flush-8:0-4272  [003] ....  8256.628545: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=149504
       flush-8:0-4272  [003] ....  8256.630190: writeback_pages_written: 1112
              dd-4267  [002] ....  8256.693086: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8256.909199: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8257.016875: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8257.041563: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8257.106900: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8257.246224: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [003] ....  8257.271030: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8257.348551: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8257.381224: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [003] ....  8257.393446: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=151552
       flush-8:0-4272  [003] ....  8257.398224: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=151552
       flush-8:0-4272  [003] ....  8257.400851: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=153600
              dd-4267  [003] ....  8257.434020: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8257.541621: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8257.840373: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8258.031388: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8258.054534: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
       flush-8:0-4272  [002] ....  8258.104190: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=175872
       flush-8:0-4272  [002] ....  8258.107511: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=175872
       flush-8:0-4272  [002] ....  8258.107923: writeback_pages_written: 512
              dd-4267  [002] ....  8258.126205: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8258.130305: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=176384
              dd-4267  [002] ....  8258.130881: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8258.133116: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8258.137594: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8258.257151: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8258.357770: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8258.406325: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8258.432124: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8258.452275: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8258.472362: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8258.492576: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [002] ....  8258.518908: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=176640
       flush-8:0-4272  [002] ....  8258.523446: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=176640
       flush-8:0-4272  [002] ....  8258.523453: writeback_pages_written: 256
              dd-4267  [002] ....  8258.545795: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8258.559572: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=176896
       flush-8:0-4272  [002] ....  8258.564143: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=176896
       flush-8:0-4272  [002] ....  8258.567279: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=178944
       flush-8:0-4272  [002] ....  8258.575307: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=180992
              dd-4267  [002] ....  8258.779190: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=192256
              dd-4267  [002] ....  8258.779212: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=192256
              dd-4267  [002] ....  8258.784476: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=193280
              dd-4267  [002] ....  8258.784497: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=193280
              dd-4267  [002] ....  8258.786546: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=195328
              dd-4267  [002] ....  8258.788222: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=197376
              dd-4267  [002] ....  8258.789834: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=199424
              dd-4267  [003] ....  8259.091794: writeback_congestion_wait: usec_timeout=100000 usec_delayed=9000
              dd-4267  [003] ....  8259.103932: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8259.142635: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
       flush-8:0-4272  [003] ....  8259.166727: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=200448
       flush-8:0-4272  [003] ....  8259.169783: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=200448
       flush-8:0-4272  [003] ....  8259.169790: writeback_pages_written: 256
              dd-4267  [003] ....  8259.183714: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
       flush-8:0-4272  [003] ....  8259.211788: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=200704
       flush-8:0-4272  [003] ....  8259.214924: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=200704
       flush-8:0-4272  [003] ....  8259.217800: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=202752
       flush-8:0-4272  [003] ....  8259.222920: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=204800
       flush-8:0-4272  [003] ....  8259.226184: writeback_pages_written: 5120
              dd-4267  [003] ....  8259.257092: writeback_congestion_wait: usec_timeout=100000 usec_delayed=35000
              dd-4267  [003] ....  8259.275740: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=205824
              dd-4267  [003] ....  8259.275756: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=205824
              dd-4267  [003] ....  8259.277624: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8259.298203: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8259.318745: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8259.451826: writeback_congestion_wait: usec_timeout=100000 usec_delayed=54000
              dd-4267  [003] ....  8259.465856: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8259.499584: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8259.518780: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8259.538457: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8259.558070: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [003] ....  8259.570146: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=206080
       flush-8:0-4272  [003] ....  8259.573737: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=206080
       flush-8:0-4272  [003] ....  8259.574164: writeback_pages_written: 512
              dd-4267  [003] ....  8259.577670: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [003] ....  8259.594106: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=206592
       flush-8:0-4272  [003] ....  8259.597848: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=206592
       flush-8:0-4272  [003] ....  8259.600521: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=208640
       flush-8:0-4272  [003] ....  8259.606747: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=210688
       flush-8:0-4272  [003] ....  8259.612775: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=212736
       flush-8:0-4272  [003] ....  8259.618277: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=214784
              dd-4267  [003] ....  8259.656171: writeback_congestion_wait: usec_timeout=100000 usec_delayed=37000
              dd-4267  [003] ....  8259.890390: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=216576
              dd-4267  [003] ....  8259.890404: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=216576
              dd-4267  [003] ....  8259.891900: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=218624
              dd-4267  [003] ....  8259.895754: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=220672
              dd-4267  [003] ....  8259.897308: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=222720
              dd-4267  [003] ....  8259.902780: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8259.908417: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8260.079480: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8260.084487: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=224768
              dd-4267  [003] ....  8260.084506: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=224768
              dd-4267  [003] ....  8260.107416: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8260.173675: writeback_congestion_wait: usec_timeout=100000 usec_delayed=38000
              dd-4267  [003] ....  8261.028667: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8261.148521: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [002] ....  8261.283270: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=26057 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8261.283272: writeback_queue_io: bdi 8:0: older=4302902970 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [002] ....  8261.285234: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=250624 to_write=1024 wrote=1024
       flush-8:0-4272  [002] ....  8261.285237: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=25033 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8261.285237: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=25033 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8261.285238: writeback_queue_io: bdi 8:0: older=4302902972 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [002] ....  8261.556566: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=258435 to_write=1024 wrote=4472
       flush-8:0-4272  [002] ....  8261.556570: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=17222 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8261.556571: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=17222 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8261.556571: writeback_queue_io: bdi 8:0: older=4302903244 age=30000 enqueue=0 reason=periodic
              dd-4267  [003] ....  8261.828188: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8261.930822: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=272384
              dd-4267  [003] ....  8261.934217: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=274432
              dd-4267  [003] ....  8262.188991: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [002] ....  8262.287291: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=276437 to_write=1024 wrote=6356
       flush-8:0-4272  [002] ....  8262.287296: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=-780 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8262.287298: writeback_pages_written: 51413
       flush-8:0-4272  [002] ....  8262.287300: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=272384
       flush-8:0-4272  [002] ....  8262.287308: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=274432
       flush-8:0-4272  [002] ....  8262.287312: writeback_pages_written: 0
##### CPU 1 buffer started ####
              dd-4267  [001] ....  8262.412091: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=276224
       flush-8:0-4272  [002] ....  8262.412109: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=276224
              dd-4267  [001] ....  8262.412113: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=276224
       flush-8:0-4272  [002] ....  8262.412273: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=276224
              dd-4267  [001] ....  8262.412843: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8262.413228: writeback_pages_written: 299
              dd-4267  [002] ....  8262.432804: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8262.452739: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8262.472704: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8262.546051: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8262.585998: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8262.635683: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8262.655672: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8262.675597: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8262.695554: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8262.717581: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8262.738142: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8262.758666: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8262.780860: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8262.801393: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8262.811726: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8262.821976: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8262.842505: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [002] ....  8262.855614: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=276736
       flush-8:0-4272  [002] ....  8262.862079: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=276736
              dd-4267  [001] ....  8262.863088: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=280832
              dd-4267  [001] ....  8262.864811: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=282880
       flush-8:0-4272  [002] ....  8262.865154: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=278784
              dd-4267  [001] ....  8262.866948: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=284928
              dd-4267  [001] ....  8262.868516: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=286976
              dd-4267  [002] ....  8262.873680: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [001] ....  8263.074676: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=282880
       flush-8:0-4272  [001] ....  8263.082377: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=284928
       flush-8:0-4272  [001] ....  8263.088659: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=286976
       flush-8:0-4272  [001] ....  8263.093872: writeback_pages_written: 12032
              dd-4267  [002] ....  8263.162787: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=288768
       flush-8:0-4272  [001] ....  8263.162806: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=288768
              dd-4267  [002] ....  8263.162807: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=288768
              dd-4267  [002] ....  8263.166798: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=290816
       flush-8:0-4272  [001] ....  8263.167706: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=288768
              dd-4267  [002] ....  8263.168416: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=292864
              dd-4267  [002] ....  8263.170061: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=294912
       flush-8:0-4272  [001] ....  8263.172041: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=290816
              dd-4267  [002] ....  8263.174392: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=296960
              dd-4267  [002] ....  8263.178723: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=299008
       flush-8:0-4272  [001] ....  8263.178800: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=292864
              dd-4267  [002] ....  8263.180744: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8263.184819: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [001] ....  8263.184948: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=294912
       flush-8:0-4272  [001] ....  8263.189635: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=296960
       flush-8:0-4272  [001] ....  8263.193882: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=299008
       flush-8:0-4272  [001] ....  8263.196897: writeback_pages_written: 11520
              dd-4267  [001] ....  8263.371538: writeback_congestion_wait: usec_timeout=100000 usec_delayed=22000
              dd-4267  [001] ....  8263.391105: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8263.397755: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8263.417164: writeback_congestion_wait: usec_timeout=100000 usec_delayed=15000
              dd-4267  [003] ....  8263.421709: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8263.424214: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8263.466360: writeback_congestion_wait: usec_timeout=100000 usec_delayed=43000
              dd-4267  [001] ....  8263.482457: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=300288
       flush-8:0-4272  [003] ....  8263.482473: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=300288
              dd-4267  [001] ....  8263.482480: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=300288
              dd-4267  [001] ....  8263.483957: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=302336
              dd-4267  [001] ....  8263.485413: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=304384
       flush-8:0-4272  [003] ....  8263.485563: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=300288
       flush-8:0-4272  [003] ....  8263.488444: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=302336
       flush-8:0-4272  [003] ....  8263.493375: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=304384
       flush-8:0-4272  [003] ....  8263.497569: writeback_pages_written: 5888
              dd-4267  [003] ....  8263.586187: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8263.621915: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306176
       flush-8:0-4272  [001] ....  8263.621932: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306176
              dd-4267  [003] ....  8263.621932: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306176
       flush-8:0-4272  [001] ....  8263.624277: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306176
       flush-8:0-4272  [001] ....  8263.624284: writeback_pages_written: 256
              dd-4267  [001] ....  8263.713731: writeback_congestion_wait: usec_timeout=100000 usec_delayed=92000
              dd-4267  [003] ....  8263.762825: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8263.772571: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8263.782397: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8263.786346: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8263.792063: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8263.794373: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8263.802026: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8263.823655: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306432
       flush-8:0-4272  [003] ....  8263.823672: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306432
              dd-4267  [001] ....  8263.823673: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306432
              dd-4267  [001] ....  8263.826272: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8263.828813: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8263.831328: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8263.835578: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8263.843013: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8263.852831: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8263.862617: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8263.872450: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8263.894518: writeback_congestion_wait: usec_timeout=100000 usec_delayed=18000
              dd-4267  [001] ....  8263.898954: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8263.942418: writeback_congestion_wait: usec_timeout=100000 usec_delayed=44000
              dd-4267  [001] ....  8263.962011: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306688
              dd-4267  [001] ....  8263.962030: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=306688
              dd-4267  [001] ....  8263.963721: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=308736
              dd-4267  [001] ....  8263.965316: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=310784
              dd-4267  [001] ....  8263.966932: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=312832
              dd-4267  [003] ....  8263.969872: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8264.003468: writeback_congestion_wait: usec_timeout=100000 usec_delayed=31000
              dd-4267  [001] ....  8264.005330: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8264.007494: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8264.172407: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8264.179889: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8264.185841: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8264.190127: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8264.196118: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8264.200459: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8264.206405: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8264.210702: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8264.216654: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8264.221002: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8264.226948: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8264.231270: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8264.237169: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8264.241569: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8264.247491: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8264.249307: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=313856
              dd-4267  [003] ....  8264.249328: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=313856
              dd-4267  [003] ....  8264.250997: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=315904
              dd-4267  [003] ....  8264.251768: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8264.255542: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=317952
              dd-4267  [003] ....  8264.257148: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=320000
              dd-4267  [001] ....  8264.257726: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8264.262047: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8264.268005: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8264.270266: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=321792
              dd-4267  [001] ....  8264.271910: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=323840
              dd-4267  [003] ....  8264.373787: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8264.530715: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [002] ....  8264.602404: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=325120
       flush-8:0-4272  [002] ....  8264.605571: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=325120
       flush-8:0-4272  [002] ....  8264.608617: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=327168
       flush-8:0-4272  [002] ....  8264.613823: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=329216
       flush-8:0-4272  [002] ....  8264.617055: writeback_pages_written: 5376
              dd-4267  [003] ....  8264.706635: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8264.777165: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=330496
       flush-8:0-4272  [002] ....  8264.777184: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=330496
              dd-4267  [003] ....  8264.777184: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=330496
       flush-8:0-4272  [002] ....  8264.780903: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=330496
       flush-8:0-4272  [002] ....  8264.780910: writeback_pages_written: 256
              dd-4267  [002] ....  8264.781921: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8264.821810: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8264.845760: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8264.875710: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8264.887380: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=330752
       flush-8:0-4272  [002] ....  8264.890912: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=330752
       flush-8:0-4272  [002] ....  8264.890919: writeback_pages_written: 256
              dd-4267  [002] ....  8264.901596: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [002] ....  8264.941549: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8264.965702: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
       flush-8:0-4272  [002] ....  8264.983529: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=331008
       flush-8:0-4272  [002] ....  8264.987449: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=331008
       flush-8:0-4272  [002] ....  8264.987456: writeback_pages_written: 256
              dd-4267  [002] ....  8264.991277: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [002] ....  8265.017144: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=331264
       flush-8:0-4272  [002] ....  8265.021013: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=331264
       flush-8:0-4272  [002] ....  8265.024087: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=333312
       flush-8:0-4272  [002] ....  8265.030297: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=335360
       flush-8:0-4272  [002] ....  8265.036048: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=337408
       flush-8:0-4272  [002] ....  8265.039951: writeback_pages_written: 7168
              dd-4267  [002] ....  8265.057223: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8265.077361: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8265.097530: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8265.117633: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8265.143609: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8265.163795: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8265.183921: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8265.204076: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8265.211688: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=338432
       flush-8:0-4272  [002] ....  8265.215220: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=338432
       flush-8:0-4272  [002] ....  8265.215226: writeback_pages_written: 256
              dd-4267  [002] ....  8265.224208: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8265.231866: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=338688
       flush-8:0-4272  [002] ....  8265.235287: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=338688
       flush-8:0-4272  [002] ....  8265.238119: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=340736
       flush-8:0-4272  [002] ....  8265.243774: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=342784
       flush-8:0-4272  [002] ....  8265.249266: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=344832
      flush-0:16-4223  [003] ....  8265.302236: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=30929 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8265.302237: writeback_queue_io: bdi 0:16: older=4302906992 age=30000 enqueue=0 reason=periodic
      flush-0:16-4223  [003] ....  8265.302238: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=30929 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8265.302243: writeback_pages_written: 0
              dd-4267  [002] ....  8265.346236: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8265.415236: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=346368
              dd-4267  [002] ....  8265.415253: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=346368
              dd-4267  [002] ....  8265.416806: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=348416
              dd-4267  [002] ....  8265.593749: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8265.597894: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=349696
              dd-4267  [002] ....  8265.597911: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=349696
              dd-4267  [002] ....  8265.599469: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=351744
              dd-4267  [002] ....  8265.601033: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=353792
              dd-4267  [002] ....  8265.603547: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [001] ....  8265.604475: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=351744
       flush-8:0-4272  [001] ....  8265.612575: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=353792
       flush-8:0-4272  [001] ....  8265.615654: writeback_pages_written: 5120
       flush-8:0-4272  [001] ....  8265.779243: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=354816
              dd-4267  [002] ....  8265.780668: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [003] ....  8266.597438: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=354816
       flush-8:0-4272  [003] ....  8266.597448: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=34303 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.597449: writeback_queue_io: bdi 8:0: older=4302908287 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [003] ....  8266.599938: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=356096 to_write=1024 wrote=1024
       flush-8:0-4272  [003] ....  8266.599941: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=33279 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.599942: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=33279 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.599942: writeback_queue_io: bdi 8:0: older=4302908290 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [003] ....  8266.622191: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=367701 to_write=1024 wrote=11605
       flush-8:0-4272  [003] ....  8266.622196: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=21674 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.622196: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=21674 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.622197: writeback_queue_io: bdi 8:0: older=4302908312 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [003] ....  8266.624595: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302921148 age=55 index=368861 to_write=1024 wrote=1160
       flush-8:0-4272  [003] ....  8266.624597: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=20514 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.624597: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=20514 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.624598: writeback_queue_io: bdi 8:0: older=4302908315 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [003] ....  8266.625314: writeback_single_inode: bdi 8:0: ino=13 state=I_DIRTY_PAGES dirtied_when=4302938315 age=38 index=368861 to_write=1024 wrote=145
       flush-8:0-4272  [003] ....  8266.625316: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=20369 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.625317: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=20369 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.625317: writeback_queue_io: bdi 8:0: older=4302908315 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [003] ....  8266.625317: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=20369 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8266.625319: writeback_pages_written: 14190
       flush-8:0-4272  [003] ....  8266.825892: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=368896
       flush-8:0-4272  [003] ....  8266.826219: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=368896
       flush-8:0-4272  [003] ....  8266.827173: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=369408
       flush-8:0-4272  [003] ....  8266.829558: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=370688
       flush-8:0-4272  [003] ....  8266.832712: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=372736
       flush-8:0-4272  [003] ....  8266.838252: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=374784
       flush-8:0-4272  [003] ....  8266.842368: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=376832
              dd-4267  [002] ....  8266.935447: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [001] ....  8266.999637: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=378880
       flush-8:0-4272  [001] ....  8267.145618: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=380928
       flush-8:0-4272  [001] ....  8267.148792: writeback_pages_written: 13202
              dd-4267  [001] ....  8267.351195: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8267.361164: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [003] ....  8267.370981: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8267.380830: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8267.390569: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8267.400401: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8267.410227: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8267.420027: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8267.429869: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8267.439597: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8267.449465: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8267.459294: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8267.469116: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8267.477442: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8267.481950: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8267.486445: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8267.490959: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8267.609943: writeback_congestion_wait: usec_timeout=100000 usec_delayed=97000
              dd-4267  [003] ....  8267.614031: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8267.618624: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8267.628386: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8267.635454: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8267.639944: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8267.644410: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8267.648982: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8267.654300: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8267.658700: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8267.667206: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8267.669674: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8267.674305: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8267.706797: writeback_congestion_wait: usec_timeout=100000 usec_delayed=18000
              dd-4267  [001] ....  8267.711275: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8267.719838: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8267.729680: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8267.737881: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8267.742316: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8267.752567: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=382208
       flush-8:0-4272  [003] ....  8267.752583: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=382208
              dd-4267  [001] ....  8267.752584: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=382208
              dd-4267  [001] ....  8267.754070: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=384256
              dd-4267  [001] ....  8267.755594: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=386304
              dd-4267  [001] ....  8267.757105: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=388352
       flush-8:0-4272  [003] ....  8267.757895: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=382208
              dd-4267  [001] ....  8267.758599: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=390400
              dd-4267  [001] ....  8267.760122: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=392448
       flush-8:0-4272  [003] ....  8267.760868: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=384256
       flush-8:0-4272  [003] ....  8267.768745: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=386304
       flush-8:0-4272  [003] ....  8267.776742: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=388352
       flush-8:0-4272  [003] ....  8267.783814: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=390400
       flush-8:0-4272  [003] ....  8267.790773: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=392448
       flush-8:0-4272  [003] ....  8267.797382: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=394496
       flush-8:0-4272  [003] ....  8267.803995: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=396544
       flush-8:0-4272  [003] ....  8267.809316: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=398592
       flush-8:0-4272  [003] ....  8267.813952: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=400640
       flush-8:0-4272  [003] ....  8267.818094: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=402688
              dd-4267  [002] ....  8267.905908: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [001] ....  8267.938284: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=404736
       flush-8:0-4272  [001] ....  8267.943129: writeback_pages_written: 24320
              dd-4267  [001] ....  8268.163764: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.173986: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [003] ....  8268.184334: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8268.194576: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.198511: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=406528
       flush-8:0-4272  [003] ....  8268.198524: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=406528
              dd-4267  [001] ....  8268.198525: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=406528
       flush-8:0-4272  [003] ....  8268.202131: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=406528
       flush-8:0-4272  [003] ....  8268.204478: writeback_pages_written: 1280
              dd-4267  [001] ....  8268.204959: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.209828: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=407808
       flush-8:0-4272  [003] ....  8268.209837: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=407808
              dd-4267  [001] ....  8268.209837: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=407808
       flush-8:0-4272  [003] ....  8268.212352: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=407808
       flush-8:0-4272  [003] ....  8268.212358: writeback_pages_written: 256
              dd-4267  [001] ....  8268.215084: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8268.227002: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [001] ....  8268.237303: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.247561: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.257823: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [003] ....  8268.268081: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.278409: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.288799: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8268.298937: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [003] ....  8268.309285: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.319485: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.323556: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408064
       flush-8:0-4272  [003] ....  8268.323569: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408064
              dd-4267  [001] ....  8268.323570: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408064
       flush-8:0-4272  [003] ....  8268.326837: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408064
       flush-8:0-4272  [003] ....  8268.326843: writeback_pages_written: 256
              dd-4267  [001] ....  8268.329773: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8268.333919: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8268.339844: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.345842: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.350165: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8268.356091: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.358321: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8268.362952: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8268.383814: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8268.437266: writeback_congestion_wait: usec_timeout=100000 usec_delayed=52000
              dd-4267  [001] ....  8268.442101: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8268.444583: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8268.448725: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8268.457661: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8268.467635: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.477643: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8268.487599: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.497414: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.501582: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8268.507385: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8268.511569: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8268.517350: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.521564: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8268.527355: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8268.531537: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8268.533925: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8268.539707: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8268.561714: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408320
       flush-8:0-4272  [003] ....  8268.561729: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408320
              dd-4267  [001] ....  8268.561736: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408320
              dd-4267  [001] ....  8268.562225: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8268.564550: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [003] ....  8268.566727: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408320
       flush-8:0-4272  [003] ....  8268.566734: writeback_pages_written: 256
              dd-4267  [001] ....  8268.567268: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8268.569268: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8268.575561: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8268.579702: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8268.585533: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.589691: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8268.595494: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.599670: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8268.605495: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8268.609659: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8268.615463: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8268.617783: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408576
       flush-8:0-4272  [001] ....  8268.617795: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408576
              dd-4267  [003] ....  8268.617796: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408576
              dd-4267  [003] ....  8268.619270: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=410624
              dd-4267  [003] ....  8268.622449: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=412672
       flush-8:0-4272  [001] ....  8268.622860: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=408576
              dd-4267  [003] ....  8268.623989: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=414720
       flush-8:0-4272  [001] ....  8268.625976: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=410624
              dd-4267  [003] ....  8268.635422: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [001] ....  8268.840617: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=412672
       flush-8:0-4272  [001] ....  8268.848404: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=414720
              dd-4267  [003] ....  8268.930278: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=419584
              dd-4267  [003] ....  8268.930296: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=419584
              dd-4267  [003] ....  8268.931994: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=421632
              dd-4267  [003] ....  8268.934099: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=423680
              dd-4267  [003] ....  8268.935726: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=425728
              dd-4267  [003] ....  8268.937352: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=427776
              dd-4267  [003] ....  8268.939046: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=429824
              dd-4267  [001] ....  8269.039200: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8269.139135: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8269.239185: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8269.408981: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8269.584400: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=431104
              dd-4267  [001] ....  8269.584469: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=431104
              dd-4267  [001] ....  8269.593152: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=431360
              dd-4267  [001] ....  8269.597285: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=431616
              dd-4267  [001] ....  8269.597492: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=431616
              dd-4267  [001] ....  8269.598967: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=433664
              dd-4267  [001] ....  8269.614402: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=434944
              dd-4267  [001] ....  8269.614421: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=434944
              dd-4267  [001] ....  8269.616055: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=436992
              dd-4267  [002] ....  8269.637753: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8269.680296: writeback_congestion_wait: usec_timeout=100000 usec_delayed=29000
              dd-4267  [002] ....  8269.817372: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [002] ....  8269.864374: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=437248
       flush-8:0-4272  [002] ....  8269.868771: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=437248
              dd-4267  [001] ....  8269.871123: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=443392
       flush-8:0-4272  [002] ....  8269.871919: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=439296
              dd-4267  [001] ....  8269.875734: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=445440
              dd-4267  [001] ....  8269.877352: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=447488
       flush-8:0-4272  [002] ....  8269.878824: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=441344
              dd-4267  [001] ....  8269.881258: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=449536
              dd-4267  [002] ....  8269.885307: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8269.889882: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8269.936593: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=443392
       flush-8:0-4272  [002] ....  8269.942755: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=445440
       flush-8:0-4272  [002] ....  8269.948672: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=447488
       flush-8:0-4272  [002] ....  8269.953747: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=449536
       flush-8:0-4272  [002] ....  8269.956079: writeback_pages_written: 13056
              dd-4267  [001] ....  8270.015147: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=450304
       flush-8:0-4272  [002] ....  8270.015168: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=450304
              dd-4267  [001] ....  8270.015174: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=450304
       flush-8:0-4272  [002] ....  8270.018425: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=450304
       flush-8:0-4272  [002] ....  8270.019354: writeback_pages_written: 768
              dd-4267  [002] ....  8270.064531: writeback_congestion_wait: usec_timeout=100000 usec_delayed=48000
              dd-4267  [002] ....  8270.106521: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=451072
              dd-4267  [002] ....  8270.106542: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=451072
              dd-4267  [002] ....  8270.109830: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=452352
              dd-4267  [002] ....  8270.111279: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=454400
       flush-8:0-4272  [002] ....  8270.274267: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=455424
       flush-8:0-4272  [002] ....  8270.277302: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=455424
       flush-8:0-4272  [002] ....  8270.277308: writeback_pages_written: 256
              dd-4267  [002] ....  8270.281460: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
      flush-0:16-4223  [001] ....  8270.300792: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=34352 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8270.300795: writeback_queue_io: bdi 0:16: older=4302911993 age=30000 enqueue=1 reason=periodic
      flush-0:16-4223  [001] ....  8270.300805: writeback_single_inode: bdi 0:16: ino=4874359 state= dirtied_when=4302911988 age=65 index=0 to_write=1024 wrote=0
      flush-0:16-4223  [001] ....  8270.300808: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=34352 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8270.300809: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=34352 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8270.300809: writeback_queue_io: bdi 0:16: older=4302911993 age=30000 enqueue=0 reason=periodic
      flush-0:16-4223  [001] ....  8270.300809: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=34352 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8270.300814: writeback_pages_written: 0
              dd-4267  [002] ....  8270.302002: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8270.316621: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8270.343276: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8270.373944: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8270.394471: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8270.415038: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8270.435568: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8270.472530: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8270.513637: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8270.517612: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=455680
              dd-4267  [002] ....  8270.517625: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=455680
              dd-4267  [002] ....  8270.554764: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8270.558840: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=455936
              dd-4267  [002] ....  8270.558852: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=455936
              dd-4267  [002] ....  8270.560339: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=457984
              dd-4267  [002] ....  8270.561810: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=460032
              dd-4267  [002] ....  8270.564781: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8270.575044: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
       flush-8:0-4272  [002] ....  8270.590611: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=461056
       flush-8:0-4272  [002] ....  8270.594701: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=461056
       flush-8:0-4272  [002] ....  8270.598284: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=463104
       flush-8:0-4272  [002] ....  8270.600496: writeback_pages_written: 2304
              dd-4267  [002] ....  8270.601943: writeback_congestion_wait: usec_timeout=100000 usec_delayed=9000
              dd-4267  [002] ....  8270.633486: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
       flush-8:0-4272  [002] ....  8270.657444: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=463360
       flush-8:0-4272  [002] ....  8270.660617: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=463360
       flush-8:0-4272  [002] ....  8270.660624: writeback_pages_written: 256
              dd-4267  [002] ....  8270.673407: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8270.703164: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8270.723126: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8270.743057: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8270.883761: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=463616
              dd-4267  [002] ....  8270.883782: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=463616
              dd-4267  [002] ....  8270.885303: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=465664
              dd-4267  [002] ....  8270.886785: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=467712
              dd-4267  [002] ....  8270.888382: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=469760
              dd-4267  [002] ....  8270.889945: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=471808
       flush-8:0-4272  [001] ....  8271.327896: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=467712
       flush-8:0-4272  [001] ....  8271.334733: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=469760
       flush-8:0-4272  [001] ....  8271.340404: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=471808
       flush-8:0-4272  [001] ....  8271.345681: writeback_pages_written: 10240
              dd-4267  [002] ....  8271.421367: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=473856
       flush-8:0-4272  [001] ....  8271.421387: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=473856
              dd-4267  [002] ....  8271.421390: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=473856
              dd-4267  [002] ....  8271.423065: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=475904
              dd-4267  [002] ....  8271.425186: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=477952
       flush-8:0-4272  [001] ....  8271.425640: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=473856
              dd-4267  [002] ....  8271.426874: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=480000
       flush-8:0-4272  [001] ....  8271.492067: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=475904
       flush-8:0-4272  [001] ....  8271.497902: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=477952
       flush-8:0-4272  [001] ....  8271.502398: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=480000
       flush-8:0-4272  [001] ....  8271.505244: writeback_pages_written: 7424
              dd-4267  [002] ....  8271.678718: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8271.777600: writeback_congestion_wait: usec_timeout=100000 usec_delayed=98000
              dd-4267  [001] ....  8271.817785: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8271.827867: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8271.837939: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8271.847990: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8271.858059: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8271.868133: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8271.878146: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8271.888271: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8271.898364: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8271.903945: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8271.908242: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8271.910635: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8271.918477: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8271.941108: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8271.945668: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8271.948169: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8271.954621: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8271.958741: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=481280
       flush-8:0-4272  [003] ....  8271.958757: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=481280
              dd-4267  [001] ....  8271.958758: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=481280
              dd-4267  [001] ....  8271.960266: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=483328
              dd-4267  [001] ....  8271.961761: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=485376
       flush-8:0-4272  [003] ....  8271.962732: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=481280
              dd-4267  [001] ....  8271.963264: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=487424
              dd-4267  [001] ....  8271.964441: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8271.974773: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8272.009232: writeback_congestion_wait: usec_timeout=100000 usec_delayed=30000
              dd-4267  [001] ....  8272.029378: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8272.035038: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8272.039234: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8272.045124: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8272.049333: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8272.051819: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8272.057558: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8272.078026: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8272.082691: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8272.090003: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8272.100194: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8272.110246: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8272.120279: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8272.130351: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8272.136822: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8272.142901: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8272.183805: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=488192
              dd-4267  [001] ....  8272.183823: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=488192
              dd-4267  [001] ....  8272.195352: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=489216
              dd-4267  [001] ....  8272.195373: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=489216
              dd-4267  [001] ....  8272.197069: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=491264
              dd-4267  [001] ....  8272.198688: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=493312
              dd-4267  [001] ....  8272.200844: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=495360
              dd-4267  [001] ....  8272.202448: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=497408
              dd-4267  [003] ....  8272.302380: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8272.402340: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
##### CPU 0 buffer started ####
              dd-4267  [000] ....  8272.587442: writeback_congestion_wait: usec_timeout=100000 usec_delayed=95000
              dd-4267  [000] ....  8272.589707: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8272.594405: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8272.603546: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [000] ....  8272.613529: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8272.617066: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=498176
       flush-8:0-4272  [002] ....  8272.617081: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=498176
              dd-4267  [000] ....  8272.617086: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=498176
              dd-4267  [000] ....  8272.619094: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=500224
       flush-8:0-4272  [002] ....  8272.620566: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=498176
              dd-4267  [000] ....  8272.620634: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=502272
              dd-4267  [000] ....  8272.622174: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=504320
       flush-8:0-4272  [002] ....  8272.623787: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=500224
       flush-8:0-4272  [002] ....  8272.629276: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=502272
       flush-8:0-4272  [002] ....  8272.633956: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=504320
       flush-8:0-4272  [002] ....  8272.637736: writeback_pages_written: 7936
              dd-4267  [003] ....  8272.728244: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8272.816879: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506112
       flush-8:0-4272  [002] ....  8272.816896: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506112
              dd-4267  [003] ....  8272.816897: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506112
       flush-8:0-4272  [002] ....  8272.820965: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506112
       flush-8:0-4272  [002] ....  8272.822144: writeback_pages_written: 768
              dd-4267  [000] ....  8272.883681: writeback_congestion_wait: usec_timeout=100000 usec_delayed=66000
              dd-4267  [000] ....  8272.901202: writeback_congestion_wait: usec_timeout=100000 usec_delayed=9000
              dd-4267  [000] ....  8272.911472: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8272.921776: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8272.932042: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8272.942300: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8272.952536: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8272.962856: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8272.972948: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8272.977268: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8272.983253: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8272.989219: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8272.993531: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8272.999473: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.003785: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.009743: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.014080: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8273.020012: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.024305: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.030315: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.033647: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506880
       flush-8:0-4272  [002] ....  8273.033663: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506880
              dd-4267  [000] ....  8273.033664: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506880
              dd-4267  [000] ....  8273.035857: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=508928
       flush-8:0-4272  [002] ....  8273.037953: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=506880
       flush-8:0-4272  [000] ....  8273.118847: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=508928
       flush-8:0-4272  [000] ....  8273.125008: writeback_pages_written: 2816
              dd-4267  [001] ....  8273.201257: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=509696
       flush-8:0-4272  [000] ....  8273.201275: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=509696
              dd-4267  [001] ....  8273.201283: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=509696
              dd-4267  [001] ....  8273.202988: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=511744
              dd-4267  [001] ....  8273.204095: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8273.204351: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [000] ....  8273.207289: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=509696
       flush-8:0-4272  [000] ....  8273.210162: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=511744
              dd-4267  [001] ....  8273.214288: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
       flush-8:0-4272  [000] ....  8273.214741: writeback_pages_written: 2816
              dd-4267  [002] ....  8273.220237: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.224624: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.230590: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.234929: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8273.240847: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.245152: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.252550: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8273.256650: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8273.262386: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.266457: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.272133: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.274530: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8273.276786: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.281514: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8273.303716: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=512512
       flush-8:0-4272  [002] ....  8273.303734: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=512512
              dd-4267  [000] ....  8273.303742: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=512512
              dd-4267  [000] ....  8273.305253: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=514560
              dd-4267  [000] ....  8273.306756: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=516608
       flush-8:0-4272  [002] ....  8273.308082: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=512512
              dd-4267  [000] ....  8273.308310: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=518656
              dd-4267  [001] ....  8273.309955: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=520704
       flush-8:0-4272  [002] ....  8273.310937: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=514560
       flush-8:0-4272  [002] ....  8273.317219: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=516608
       flush-8:0-4272  [002] ....  8273.322499: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=518656
       flush-8:0-4272  [002] ....  8273.327288: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=520704
       flush-8:0-4272  [002] ....  8273.331707: writeback_pages_written: 10240
              dd-4267  [003] ....  8273.411759: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8273.467526: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=522752
       flush-8:0-4272  [002] ....  8273.467545: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=522752
              dd-4267  [003] ....  8273.467547: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=522752
              dd-4267  [003] ....  8273.469243: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=524800
              dd-4267  [003] ....  8273.470853: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=526848
       flush-8:0-4272  [002] ....  8273.471531: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=522752
              dd-4267  [003] ....  8273.472458: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8273.476836: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=524800
       flush-8:0-4272  [002] ....  8273.482005: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=526848
       flush-8:0-4272  [002] ....  8273.484987: writeback_pages_written: 5376
              dd-4267  [001] ....  8273.576718: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8273.630560: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=528128
       flush-8:0-4272  [002] ....  8273.630579: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=528128
              dd-4267  [001] ....  8273.630580: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=528128
              dd-4267  [001] ....  8273.632915: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=530176
       flush-8:0-4272  [002] ....  8273.634217: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=528128
       flush-8:0-4272  [002] ....  8273.637881: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=530176
       flush-8:0-4272  [002] ....  8273.641495: writeback_pages_written: 3328
              dd-4267  [003] ....  8273.733643: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8273.803010: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.812834: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8273.822636: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8273.832432: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8273.842319: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8273.852182: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8273.861874: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8273.872685: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [000] ....  8273.877222: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8273.881324: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.887043: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8273.891135: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.896818: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.900890: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.906661: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8273.910747: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.916474: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.920550: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.926259: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8273.930361: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.936114: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.940195: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.942458: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=531456
       flush-8:0-4272  [002] ....  8273.942469: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=531456
              dd-4267  [000] ....  8273.942470: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=531456
              dd-4267  [000] ....  8273.943968: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=533504
              dd-4267  [000] ....  8273.945828: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8273.946273: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=531456
       flush-8:0-4272  [002] ....  8273.949248: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=533504
              dd-4267  [000] ....  8273.949900: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] .N..  8273.954420: writeback_pages_written: 3584
              dd-4267  [002] ....  8273.955696: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8273.959774: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8273.965545: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8273.969610: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.975340: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.979456: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8273.987689: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8273.992204: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8274.026101: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8274.031783: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8274.035939: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.040032: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.045692: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8274.049762: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.055579: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8274.059648: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8274.065335: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8274.069439: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8274.075170: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8274.079279: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8274.086684: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8274.091051: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.097019: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8274.102975: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8274.107277: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.111257: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=535040
       flush-8:0-4272  [002] ....  8274.111272: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=535040
              dd-4267  [000] ....  8274.111280: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=535040
              dd-4267  [000] ....  8274.114916: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=537088
       flush-8:0-4272  [002] ....  8274.115545: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=535040
       flush-8:0-4272  [002] ....  8274.118567: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=537088
              dd-4267  [001] ....  8274.120214: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=538112
              dd-4267  [001] ....  8274.123035: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8274.123531: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=538112
       flush-8:0-4272  [002] ....  8274.124428: writeback_pages_written: 3840
              dd-4267  [001] ....  8274.125289: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.127722: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8274.130996: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8274.133237: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.135492: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8274.175907: writeback_congestion_wait: usec_timeout=100000 usec_delayed=40000
              dd-4267  [000] ....  8274.290285: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8274.336268: writeback_congestion_wait: usec_timeout=100000 usec_delayed=46000
              dd-4267  [002] ....  8274.340912: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8274.347609: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8274.357660: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8274.367884: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8274.373602: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.377990: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8274.383934: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8274.386279: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=538880
       flush-8:0-4272  [002] ....  8274.386291: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=538880
              dd-4267  [000] ....  8274.386292: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=538880
              dd-4267  [000] ....  8274.387774: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=540928
       flush-8:0-4272  [002] ....  8274.390547: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=538880
              dd-4267  [000] ....  8274.391322: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=542976
              dd-4267  [000] ....  8274.392891: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=545024
       flush-8:0-4272  [000] ....  8274.536676: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=540928
       flush-8:0-4272  [000] ....  8274.543142: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=542976
       flush-8:0-4272  [000] ....  8274.549982: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=545024
       flush-8:0-4272  [000] ....  8274.554681: writeback_pages_written: 7680
              dd-4267  [001] ....  8274.657074: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=546560
       flush-8:0-4272  [000] ....  8274.657090: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=546560
              dd-4267  [001] ....  8274.657093: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=546560
              dd-4267  [001] ....  8274.661141: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=548608
       flush-8:0-4272  [000] ....  8274.662544: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=546560
              dd-4267  [001] ....  8274.662787: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=550656
       flush-8:0-4272  [000] ....  8274.666715: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=548608
              dd-4267  [001] ....  8274.666972: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=552704
              dd-4267  [001] ....  8274.670755: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=554752
              dd-4267  [001] ....  8274.673577: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [000] ....  8274.674196: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=550656
              dd-4267  [001] ....  8274.677756: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [000] ....  8274.680418: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=552704
       flush-8:0-4272  [000] ....  8274.685640: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=554752
       flush-8:0-4272  [000] ....  8274.688771: writeback_pages_written: 9216
              dd-4267  [003] ....  8274.779091: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8274.843553: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8274.853430: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8274.863405: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8274.870132: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8274.874634: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8274.878968: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8274.883432: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8274.887848: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8274.930432: writeback_congestion_wait: usec_timeout=100000 usec_delayed=37000
              dd-4267  [000] ....  8274.932637: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8274.943276: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8274.943281: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=555776
       flush-8:0-4272  [002] ....  8274.943292: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=555776
       flush-8:0-4272  [002] ....  8274.947234: writeback_pages_written: 256
              dd-4267  [000] ....  8274.947540: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=556032
       flush-8:0-4272  [002] ....  8274.947548: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=556032
              dd-4267  [000] ....  8274.947549: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=556032
              dd-4267  [000] ....  8274.949050: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=558080
       flush-8:0-4272  [002] ....  8274.950731: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=556032
       flush-8:0-4272  [002] ....  8274.954025: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=558080
       flush-8:0-4272  [002] ....  8274.958120: writeback_pages_written: 3072
              dd-4267  [001] ....  8274.962461: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=559104
       flush-8:0-4272  [002] ....  8274.962480: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=559104
              dd-4267  [001] ....  8274.962481: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=559104
       flush-8:0-4272  [002] ....  8274.965051: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=559104
       flush-8:0-4272  [002] ....  8274.966440: writeback_pages_written: 1024
              dd-4267  [001] ....  8274.971338: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560128
       flush-8:0-4272  [002] ....  8274.971354: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560128
              dd-4267  [001] ....  8274.971355: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560128
       flush-8:0-4272  [002] ....  8274.973875: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560128
       flush-8:0-4272  [002] ....  8274.974803: writeback_pages_written: 768
              dd-4267  [001] ....  8274.976380: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560896
       flush-8:0-4272  [002] ....  8274.976392: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560896
              dd-4267  [001] ....  8274.976393: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560896
       flush-8:0-4272  [002] ....  8274.980232: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=560896
              dd-4267  [001] ....  8274.981786: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=561920
       flush-8:0-4272  [002] ....  8274.982195: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=561920
              dd-4267  [001] ....  8274.982196: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=562176
       flush-8:0-4272  [002] ....  8274.985722: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=562176
       flush-8:0-4272  [002] ....  8274.988800: writeback_pages_written: 2816
              dd-4267  [003] ....  8275.082867: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8275.128437: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8275.138326: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563712
       flush-8:0-4272  [002] ....  8275.138340: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563712
              dd-4267  [000] ....  8275.138341: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563712
       flush-8:0-4272  [002] ....  8275.141461: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563712
       flush-8:0-4272  [002] ....  8275.141469: writeback_pages_written: 256
              dd-4267  [002] ....  8275.194016: writeback_congestion_wait: usec_timeout=100000 usec_delayed=55000
              dd-4267  [000] ....  8275.198421: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8275.292553: writeback_congestion_wait: usec_timeout=100000 usec_delayed=69000
              dd-4267  [000] ....  8275.296650: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563968
       flush-8:0-4272  [002] ....  8275.296664: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563968
              dd-4267  [000] ....  8275.296665: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563968
              dd-4267  [000] ....  8275.297205: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
      flush-0:16-4223  [003] ....  8275.297726: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=35970 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8275.297730: writeback_queue_io: bdi 0:16: older=4302916993 age=30000 enqueue=2 reason=periodic
      flush-0:16-4223  [003] ....  8275.297741: writeback_single_inode: bdi 0:16: ino=1573485 state= dirtied_when=4302912037 age=65 index=0 to_write=1024 wrote=0
      flush-0:16-4223  [003] ....  8275.297765: writeback_single_inode: bdi 0:16: ino=1573501 state= dirtied_when=4302915356 age=61 index=24 to_write=1024 wrote=1
      flush-0:16-4223  [003] ....  8275.297769: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=35969 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8275.297770: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=35969 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8275.297770: writeback_queue_io: bdi 0:16: older=4302916993 age=30000 enqueue=0 reason=periodic
      flush-0:16-4223  [003] ....  8275.297771: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=35969 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [003] ....  8275.297777: writeback_pages_written: 1
       flush-8:0-4272  [002] ....  8275.300356: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=563968
       flush-8:0-4272  [002] ....  8275.300363: writeback_pages_written: 256
              dd-4267  [000] ....  8275.301842: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8275.307614: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8275.312153: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8275.319068: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8275.328375: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8275.338401: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8275.342574: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=564224
       flush-8:0-4272  [000] ....  8275.342588: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=564224
              dd-4267  [002] ....  8275.342589: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=564224
              dd-4267  [002] ....  8275.346229: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=566272
       flush-8:0-4272  [000] ....  8275.346586: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=564224
              dd-4267  [002] ....  8275.347786: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=568320
       flush-8:0-4272  [000] ....  8275.349746: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=566272
              dd-4267  [002] ....  8275.351519: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=570368
              dd-4267  [002] ....  8275.353984: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [000] ....  8275.355780: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=568320
              dd-4267  [002] ....  8275.356369: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [000] ....  8275.361337: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=570368
       flush-8:0-4272  [000] ....  8275.363817: writeback_pages_written: 6912
              dd-4267  [000] ....  8275.455701: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8275.493067: writeback_congestion_wait: usec_timeout=100000 usec_delayed=14000
              dd-4267  [002] ....  8275.513157: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8275.523329: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8275.533356: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8275.536894: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571136
       flush-8:0-4272  [002] ....  8275.536907: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571136
              dd-4267  [000] ....  8275.536915: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571136
       flush-8:0-4272  [002] ....  8275.540007: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571136
       flush-8:0-4272  [002] ....  8275.540783: writeback_pages_written: 768
              dd-4267  [000] ....  8275.549196: writeback_congestion_wait: usec_timeout=100000 usec_delayed=12000
              dd-4267  [002] ....  8275.559066: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8275.569257: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8275.574835: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8275.576992: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571904
       flush-8:0-4272  [002] ....  8275.577003: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571904
              dd-4267  [000] ....  8275.577010: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571904
              dd-4267  [000] ....  8275.579035: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8275.580062: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=571904
       flush-8:0-4272  [002] ....  8275.580471: writeback_pages_written: 512
              dd-4267  [002] ....  8275.584884: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8275.590767: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8275.595004: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8275.600852: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8275.607811: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8275.611310: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572416
       flush-8:0-4272  [002] ....  8275.611324: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572416
              dd-4267  [000] ....  8275.611327: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572416
              dd-4267  [000] ....  8275.612088: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8275.614606: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572416
       flush-8:0-4272  [002] ....  8275.614613: writeback_pages_written: 256
              dd-4267  [000] ....  8275.616597: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8275.620899: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8275.622607: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572672
       flush-8:0-4272  [000] ....  8275.622616: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572672
              dd-4267  [002] ....  8275.622617: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572672
       flush-8:0-4272  [000] ....  8275.626265: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572672
       flush-8:0-4272  [000] ....  8275.626271: writeback_pages_written: 256
              dd-4267  [000] ....  8275.632606: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8275.642731: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8275.656678: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572928
       flush-8:0-4272  [002] ....  8275.656693: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572928
              dd-4267  [000] ....  8275.656694: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572928
              dd-4267  [000] ....  8275.658185: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=574976
       flush-8:0-4272  [002] ....  8275.660256: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=572928
              dd-4267  [002] ....  8275.663561: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
       flush-8:0-4272  [000] ....  8275.762227: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=574976
       flush-8:0-4272  [000] ....  8275.768192: writeback_pages_written: 3328
              dd-4267  [001] ....  8275.813954: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=576256
       flush-8:0-4272  [000] ....  8275.813972: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=576256
              dd-4267  [001] ....  8275.813973: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=576256
       flush-8:0-4272  [000] ....  8275.818853: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=576256
              dd-4267  [001] ....  8275.819749: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=577536
       flush-8:0-4272  [000] ....  8275.821425: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=577536
              dd-4267  [001] ....  8275.821426: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=579328
              dd-4267  [001] ....  8275.825312: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [000] ....  8275.829046: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=579328
       flush-8:0-4272  [000] ....  8275.830311: writeback_pages_written: 4096
              dd-4267  [000] ....  8275.835347: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8275.841226: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8275.845447: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8276.548367: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=580352
       flush-8:0-4272  [002] ....  8276.548384: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=580352
              dd-4267  [000] ....  8276.548400: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=580352
              dd-4267  [000] ....  8276.550364: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=582400
              dd-4267  [000] ....  8276.551926: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=584448
              dd-4267  [000] ....  8276.553518: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=586496
       flush-8:0-4272  [002] ....  8276.554547: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=580352
              dd-4267  [000] ....  8276.555127: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=588544
              dd-4267  [000] ....  8276.556649: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=590592
       flush-8:0-4272  [002] ....  8276.557449: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=582400
              dd-4267  [001] ....  8276.560430: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=592640
              dd-4267  [001] ....  8276.562084: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=594688
              dd-4267  [001] ....  8276.563704: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=596736
              dd-4267  [001] ....  8276.565324: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=598784
       flush-8:0-4272  [002] ....  8276.565402: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=584448
              dd-4267  [001] ....  8276.566863: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=600832
              dd-4267  [001] ....  8276.568420: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=602880
       flush-8:0-4272  [002] ....  8276.573699: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=586496
       flush-8:0-4272  [002] ....  8276.580114: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=588544
       flush-8:0-4272  [002] ....  8276.585744: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=590592
       flush-8:0-4272  [002] ....  8276.590904: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=592640
       flush-8:0-4272  [002] ....  8276.595589: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=594688
       flush-8:0-4272  [002] ....  8276.599917: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=596736
       flush-8:0-4272  [002] ....  8276.603987: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=598784
              dd-4267  [003] ....  8276.668972: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8276.769045: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [002] ....  8276.890790: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=600832
       flush-8:0-4272  [002] ....  8276.895314: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=602880
       flush-8:0-4272  [002] ....  8276.898568: writeback_pages_written: 24320
              dd-4267  [003] ....  8276.908887: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8277.050810: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8277.200263: writeback_congestion_wait: usec_timeout=100000 usec_delayed=88000
              dd-4267  [000] ....  8277.258031: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604672
       flush-8:0-4272  [002] ....  8277.258049: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604672
              dd-4267  [000] ....  8277.258050: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604672
              dd-4267  [000] ....  8277.258823: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8277.261572: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604672
       flush-8:0-4272  [002] ....  8277.261579: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=35048 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8277.261580: writeback_queue_io: bdi 8:0: older=4302918957 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [002] ....  8277.261580: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=35048 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8277.261582: writeback_pages_written: 256
              dd-4267  [000] ....  8277.262937: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.268671: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.272757: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.278481: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8277.282585: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8277.288315: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8277.292395: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8277.298115: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.302215: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.307931: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.312008: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.317735: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.324837: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8277.355709: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.364584: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8277.374398: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8277.382588: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8277.392402: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8277.397901: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.402057: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.407739: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.411818: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.417560: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8277.421658: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.427424: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.431473: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8277.437191: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.441271: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.447015: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.451087: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.456772: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.460844: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.466614: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.470713: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.476407: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8277.480519: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.486224: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8277.490324: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.496067: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8277.500124: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.505806: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.509968: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.515667: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8277.519729: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.521881: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8277.524031: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.526217: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8277.528385: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.530862: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8277.533032: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8277.539390: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8277.546494: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8277.550594: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.556326: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.560414: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8277.566132: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8277.570213: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8277.575939: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.580028: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.585719: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8277.589773: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.595538: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8277.599643: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8277.605356: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8277.609463: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.615151: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8277.619253: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8277.624990: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8277.629080: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8277.630998: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604928
       flush-8:0-4272  [000] ....  8277.631010: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604928
              dd-4267  [002] ....  8277.631011: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604928
              dd-4267  [002] ....  8277.632513: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=606976
              dd-4267  [002] ....  8277.634731: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [000] ....  8277.636659: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=604928
              dd-4267  [002] ....  8277.638506: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=609024
              dd-4267  [002] ....  8277.640040: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=611072
              dd-4267  [002] ....  8277.641550: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=613120
              dd-4267  [002] ....  8277.643094: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=615168
       flush-8:0-4272  [000] ....  8277.715839: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=606976
       flush-8:0-4272  [000] ....  8277.724516: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=609024
       flush-8:0-4272  [000] ....  8277.733064: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=611072
       flush-8:0-4272  [000] ....  8277.740840: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=613120
       flush-8:0-4272  [000] ....  8277.748062: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=615168
       flush-8:0-4272  [000] ....  8277.755291: writeback_pages_written: 12288
              dd-4267  [001] ....  8277.802545: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=617216
       flush-8:0-4272  [000] ....  8277.802565: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=617216
              dd-4267  [001] ....  8277.802566: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=617216
              dd-4267  [001] ....  8277.804416: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=619264
              dd-4267  [001] ....  8277.806516: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=621312
       flush-8:0-4272  [000] ....  8277.808332: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=617216
       flush-8:0-4272  [000] ....  8277.813105: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=619264
              dd-4267  [001] ....  8277.813218: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=623360
              dd-4267  [001] ....  8277.815522: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=625408
       flush-8:0-4272  [000] ....  8277.820794: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=621312
              dd-4267  [001] ....  8277.821744: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=627456
       flush-8:0-4272  [000] ....  8277.826650: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=623360
              dd-4267  [001] ....  8277.826949: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [000] ....  8277.832483: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=625408
       flush-8:0-4272  [000] ....  8277.837046: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=627456
       flush-8:0-4272  [000] ....  8277.840357: writeback_pages_written: 11776
              dd-4267  [003] ....  8277.931348: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8278.051459: writeback_congestion_wait: usec_timeout=100000 usec_delayed=55000
              dd-4267  [000] ....  8278.116343: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=628992
       flush-8:0-4272  [002] ....  8278.116363: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=628992
              dd-4267  [000] ....  8278.116364: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=628992
              dd-4267  [000] ....  8278.118347: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=631040
              dd-4267  [000] ....  8278.119860: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=633088
       flush-8:0-4272  [001] ....  8278.120392: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=628992
              dd-4267  [000] ....  8278.123157: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [001] ....  8278.123728: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=631040
       flush-8:0-4272  [001] ....  8278.130201: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=633088
       flush-8:0-4272  [001] ....  8278.133845: writeback_pages_written: 5376
              dd-4267  [002] ....  8278.225775: writeback_congestion_wait: usec_timeout=100000 usec_delayed=99000
              dd-4267  [002] ....  8278.294088: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634368
       flush-8:0-4272  [001] ....  8278.294107: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634368
              dd-4267  [002] ....  8278.294109: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634368
       flush-8:0-4272  [001] ....  8278.297397: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634368
       flush-8:0-4272  [001] ....  8278.297405: writeback_pages_written: 256
              dd-4267  [002] ....  8278.303627: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8278.308159: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8278.359684: writeback_congestion_wait: usec_timeout=100000 usec_delayed=51000
              dd-4267  [000] ....  8278.362293: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8278.414805: writeback_congestion_wait: usec_timeout=100000 usec_delayed=52000
              dd-4267  [000] ....  8278.417186: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8278.419534: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8278.421935: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8278.424848: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8278.523938: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8278.609350: writeback_congestion_wait: usec_timeout=100000 usec_delayed=85000
              dd-4267  [002] ....  8278.611904: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8278.614392: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8278.617127: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8278.621765: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8278.629512: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [000] ....  8278.639410: writeback_congestion_wait: usec_timeout=100000 usec_delayed=10000
              dd-4267  [003] ....  8278.649387: writeback_congestion_wait: usec_timeout=100000 usec_delayed=10000
              dd-4267  [001] ....  8278.655016: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8278.659199: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8278.664970: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8278.744840: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8278.748992: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8278.754791: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8278.758983: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8278.764795: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8278.768952: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8278.774753: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8278.778942: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.784729: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.788914: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.794714: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8278.798872: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.804677: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.808866: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.814669: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8278.818829: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.824640: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.828858: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8278.834601: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8278.838792: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8278.901654: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8278.908163: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634624
       flush-8:0-4272  [001] ....  8278.908182: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634624
              dd-4267  [000] ....  8278.908650: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634624
              dd-4267  [000] ....  8278.911296: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [001] ....  8278.913786: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634624
       flush-8:0-4272  [001] ....  8278.913794: writeback_pages_written: 256
              dd-4267  [002] ....  8278.921513: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [000] ....  8278.925513: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8278.931324: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8278.935488: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8278.941321: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8278.945468: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8278.951282: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8278.955458: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8278.961249: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8278.964003: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634880
       flush-8:0-4272  [001] ....  8278.964020: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634880
              dd-4267  [000] ....  8278.964035: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634880
              dd-4267  [000] ....  8278.966502: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=636928
              dd-4267  [000] ....  8278.968844: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=638976
       flush-8:0-4272  [001] ....  8278.969634: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=634880
              dd-4267  [000] ....  8278.971204: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=641024
       flush-8:0-4272  [001] ....  8278.973125: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=636928
              dd-4267  [000] ....  8278.975599: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=643072
              dd-4267  [000] ....  8278.977264: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=645120
       flush-8:0-4272  [001] ....  8278.982123: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=638976
              dd-4267  [000] ....  8278.985235: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=647168
              dd-4267  [000] ....  8278.986899: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=649216
              dd-4267  [000] ....  8278.988478: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=651264
       flush-8:0-4272  [001] ....  8279.107478: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=641024
       flush-8:0-4272  [001] ....  8279.115590: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=643072
       flush-8:0-4272  [001] ....  8279.122629: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=645120
       flush-8:0-4272  [001] ....  8279.128637: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=647168
       flush-8:0-4272  [001] ....  8279.134624: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=649216
       flush-8:0-4272  [001] ....  8279.139908: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=651264
       flush-8:0-4272  [001] ....  8279.143584: writeback_pages_written: 17408
              dd-4267  [000] ....  8279.191039: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=652288
       flush-8:0-4272  [001] ....  8279.191060: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=652288
              dd-4267  [000] ....  8279.191070: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=652288
              dd-4267  [000] ....  8279.192824: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=654336
       flush-8:0-4272  [001] ....  8279.194897: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=652288
       flush-8:0-4272  [001] ....  8279.198344: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=654336
              dd-4267  [000] ....  8279.198346: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=655360
              dd-4267  [000] ....  8279.199880: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=657408
       flush-8:0-4272  [001] ....  8279.202409: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=655360
       flush-8:0-4272  [001] ....  8279.205272: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=657408
       flush-8:0-4272  [001] ....  8279.209400: writeback_pages_written: 6912
              dd-4267  [002] ....  8279.300548: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8279.420643: writeback_congestion_wait: usec_timeout=100000 usec_delayed=59000
              dd-4267  [003] ....  8279.473709: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659200
       flush-8:0-4272  [001] ....  8279.473725: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659200
              dd-4267  [003] ....  8279.473735: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659200
       flush-8:0-4272  [001] ....  8279.477129: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659200
       flush-8:0-4272  [001] ....  8279.477537: writeback_pages_written: 512
              dd-4267  [001] ....  8279.567996: writeback_congestion_wait: usec_timeout=100000 usec_delayed=94000
              dd-4267  [001] ....  8279.570412: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8279.575103: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8279.583971: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8279.594089: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8279.605732: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [001] ....  8279.615825: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.625850: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.635943: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8279.646070: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.656125: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.666165: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.676215: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8279.686308: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8279.696389: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8279.706454: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.716539: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.720112: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659712
       flush-8:0-4272  [003] ....  8279.720126: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659712
              dd-4267  [001] ....  8279.720127: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659712
              dd-4267  [001] ....  8279.721617: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=661760
              dd-4267  [001] ....  8279.723124: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=663808
       flush-8:0-4272  [003] ....  8279.724157: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=659712
              dd-4267  [003] ....  8279.728278: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
       flush-8:0-4272  [000] ....  8279.728765: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=661760
       flush-8:0-4272  [000] ....  8279.736675: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=663808
              dd-4267  [001] ....  8279.738442: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
       flush-8:0-4272  [000] ....  8279.740568: writeback_pages_written: 5120
              dd-4267  [001] ....  8279.748446: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8279.758431: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8279.768498: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8279.778569: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.788654: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8279.798693: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8279.808736: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8279.818831: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.828949: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.839007: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.842997: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=664832
       flush-8:0-4272  [000] ....  8279.843014: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=664832
              dd-4267  [001] ....  8279.843016: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=664832
       flush-8:0-4272  [000] ....  8279.847182: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=664832
       flush-8:0-4272  [000] ....  8279.847191: writeback_pages_written: 256
              dd-4267  [003] ....  8279.849076: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8279.853108: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8279.863346: writeback_congestion_wait: usec_timeout=100000 usec_delayed=9000
              dd-4267  [001] ....  8279.874975: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [003] ....  8279.880557: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8279.884813: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8279.890544: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.894781: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8279.900525: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.904786: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8279.910495: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.914742: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8279.920501: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.924716: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8279.930462: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.934704: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8279.940466: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.944675: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8279.950443: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.954671: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8279.960415: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.964640: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8279.970407: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.974635: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8279.980386: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.984609: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8279.990382: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8279.992689: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=665088
       flush-8:0-4272  [000] ....  8279.992705: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=665088
              dd-4267  [001] ....  8279.992706: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=665088
              dd-4267  [001] ....  8279.996636: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=667136
       flush-8:0-4272  [000] ....  8279.998271: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=665088
              dd-4267  [001] ....  8279.998348: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=669184
              dd-4267  [001] ....  8279.999931: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=671232
       flush-8:0-4272  [000] ....  8280.002961: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=667136
              dd-4267  [001] ....  8280.004506: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [000] ....  8280.010048: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=669184
              dd-4267  [001] ....  8280.010313: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8280.012905: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=673280
       flush-8:0-4272  [000] ....  8280.016172: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=671232
              dd-4267  [001] ....  8280.017137: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=675328
              dd-4267  [001] ....  8280.018724: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8280.020975: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8280.023205: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8280.025762: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8280.166717: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=673280
       flush-8:0-4272  [002] ....  8280.172594: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=675328
       flush-8:0-4272  [002] ....  8280.176266: writeback_pages_written: 11520
              dd-4267  [003] ....  8280.266612: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=676608
       flush-8:0-4272  [002] ....  8280.266632: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=676608
              dd-4267  [003] ....  8280.266635: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=676608
              dd-4267  [003] ....  8280.268438: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=678656
       flush-8:0-4272  [002] ....  8280.270275: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=676608
              dd-4267  [003] ....  8280.272860: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=680704
       flush-8:0-4272  [002] ....  8280.273667: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=678656
              dd-4267  [003] ....  8280.277004: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=682752
       flush-8:0-4272  [002] ....  8280.279511: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=680704
       flush-8:0-4272  [002] ....  8280.284580: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=682752
       flush-8:0-4272  [002] ....  8280.286725: writeback_pages_written: 6912
      flush-0:16-4223  [001] ....  8280.294981: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=29073 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8280.294985: writeback_queue_io: bdi 0:16: older=4302921993 age=30000 enqueue=3 reason=periodic
      flush-0:16-4223  [001] ....  8280.294994: writeback_single_inode: bdi 0:16: ino=3080195 state= dirtied_when=4302920855 age=56 index=0 to_write=1024 wrote=0
      flush-0:16-4223  [001] ....  8280.295020: writeback_single_inode: bdi 0:16: ino=1573416 state= dirtied_when=4302921098 age=56 index=0 to_write=1024 wrote=1
      flush-0:16-4223  [001] ....  8280.295032: writeback_single_inode: bdi 0:16: ino=1573486 state= dirtied_when=4302921098 age=56 index=52481 to_write=1024 wrote=1
      flush-0:16-4223  [001] ....  8280.295035: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=29071 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8280.295036: writeback_start: bdi 0:16: sb_dev 0:0 nr_pages=29071 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8280.295037: writeback_queue_io: bdi 0:16: older=4302921993 age=30000 enqueue=0 reason=periodic
      flush-0:16-4223  [001] ....  8280.295037: writeback_written: bdi 0:16: sb_dev 0:0 nr_pages=29071 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
      flush-0:16-4223  [001] ....  8280.295042: writeback_pages_written: 2
              dd-4267  [001] ....  8280.297036: writeback_congestion_wait: usec_timeout=100000 usec_delayed=20000
              dd-4267  [003] ....  8280.408987: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8280.467718: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.477905: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8280.488203: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8280.492193: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683520
       flush-8:0-4272  [002] ....  8280.492204: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683520
              dd-4267  [000] ....  8280.492205: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683520
              dd-4267  [000] ....  8280.494904: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [002] ....  8280.495455: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683520
       flush-8:0-4272  [002] ....  8280.495461: writeback_pages_written: 256
              dd-4267  [002] ....  8280.499328: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.503823: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.508200: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.516395: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683776
       flush-8:0-4272  [002] ....  8280.516410: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683776
              dd-4267  [000] ....  8280.516410: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683776
              dd-4267  [000] ....  8280.516691: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8280.516877: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8280.520252: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=683776
       flush-8:0-4272  [002] ....  8280.520259: writeback_pages_written: 256
              dd-4267  [000] ....  8280.521328: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.525593: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.613120: writeback_congestion_wait: usec_timeout=100000 usec_delayed=84000
              dd-4267  [000] ....  8280.621118: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.628140: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8280.636293: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8280.640774: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.645305: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8280.649723: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8280.657246: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8280.661750: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.670022: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=684032
       flush-8:0-4272  [002] ....  8280.670036: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=684032
              dd-4267  [000] ....  8280.670040: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=684032
              dd-4267  [000] ....  8280.671552: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=686080
              dd-4267  [000] ....  8280.673073: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=688128
       flush-8:0-4272  [002] ....  8280.674106: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=684032
       flush-8:0-4272  [001] ....  8280.677134: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=686080
              dd-4267  [000] ....  8280.680892: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690176
       flush-8:0-4272  [001] ....  8280.685604: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=688128
              dd-4267  [000] ....  8280.686261: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
       flush-8:0-4272  [001] ....  8280.691619: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690176
       flush-8:0-4272  [001] ....  8280.693880: writeback_pages_written: 6400
              dd-4267  [000] ....  8280.699811: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8280.725768: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8280.735583: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8280.745458: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8280.749433: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690432
       flush-8:0-4272  [001] ....  8280.749453: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690432
              dd-4267  [000] ....  8280.749455: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690432
       flush-8:0-4272  [001] ....  8280.753038: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690432
       flush-8:0-4272  [001] ....  8280.753044: writeback_pages_written: 256
              dd-4267  [000] ....  8280.755184: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8280.763233: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8280.767808: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.772434: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.776929: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.781392: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8280.785741: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.790431: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8280.805974: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690688
       flush-8:0-4272  [001] ....  8280.805990: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690688
              dd-4267  [000] ....  8280.805995: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690688
       flush-8:0-4272  [001] ....  8280.810334: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690688
       flush-8:0-4272  [001] ....  8280.810343: writeback_pages_written: 256
              dd-4267  [002] ....  8280.835906: writeback_congestion_wait: usec_timeout=100000 usec_delayed=30000
              dd-4267  [002] ....  8280.942587: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8280.999893: writeback_congestion_wait: usec_timeout=100000 usec_delayed=57000
              dd-4267  [000] ....  8281.002359: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8281.004620: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8281.007144: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8281.011505: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8281.015104: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690944
       flush-8:0-4272  [001] ....  8281.015120: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690944
              dd-4267  [000] ....  8281.015121: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690944
              dd-4267  [000] ....  8281.018879: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [001] ....  8281.019801: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=690944
       flush-8:0-4272  [001] ....  8281.021129: writeback_pages_written: 768
              dd-4267  [000] ....  8281.023390: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=691712
       flush-8:0-4272  [001] ....  8281.023405: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=691712
              dd-4267  [000] ....  8281.023406: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=691712
              dd-4267  [000] ....  8281.025078: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=693760
              dd-4267  [000] ....  8281.026726: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=695808
       flush-8:0-4272  [001] ....  8281.027870: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=691712
              dd-4267  [000] ....  8281.028680: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [001] ....  8281.032562: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=693760
              dd-4267  [000] ....  8281.034082: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=697856
              dd-4267  [002] ....  8281.038551: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [001] ....  8281.039182: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=695808
              dd-4267  [002] ....  8281.043151: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=699904
       flush-8:0-4272  [001] ....  8281.045416: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=697856
       flush-8:0-4272  [001] ....  8281.050590: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=699904
       flush-8:0-4272  [001] ....  8281.054085: writeback_pages_written: 9472
              dd-4267  [000] ....  8281.146586: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8281.267657: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=701184
       flush-8:0-4272  [001] ....  8281.267676: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=701184
              dd-4267  [000] ....  8281.267682: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=701184
              dd-4267  [000] ....  8281.269420: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=703232
       flush-8:0-4272  [001] ....  8281.273221: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=701184
              dd-4267  [000] ....  8281.275742: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=705280
       flush-8:0-4272  [001] ....  8281.276549: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=703232
              dd-4267  [000] ....  8281.277912: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=707328
              dd-4267  [003] ....  8281.280371: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [001] ....  8281.318655: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=705280
       flush-8:0-4272  [001] ....  8281.324616: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=707328
       flush-8:0-4272  [001] ....  8281.328030: writeback_pages_written: 6912
              dd-4267  [002] ....  8281.450334: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8281.461260: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8281.483632: writeback_congestion_wait: usec_timeout=100000 usec_delayed=20000
              dd-4267  [003] ....  8281.486146: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8281.488493: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8281.491058: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8281.495253: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8281.503364: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8281.513429: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8281.522995: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8281.532819: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8281.542599: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8281.546558: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708096
       flush-8:0-4272  [001] ....  8281.546572: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708096
              dd-4267  [003] ....  8281.546572: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708096
              dd-4267  [001] ....  8281.556507: writeback_congestion_wait: usec_timeout=100000 usec_delayed=10000
       flush-8:0-4272  [003] ....  8282.192050: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708096
       flush-8:0-4272  [003] ....  8282.192057: writeback_pages_written: 256
              dd-4267  [003] ....  8282.363940: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708352
       flush-8:0-4272  [001] ....  8282.363957: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708352
              dd-4267  [003] ....  8282.363965: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708352
              dd-4267  [003] ....  8282.365488: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=710400
              dd-4267  [003] ....  8282.366985: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=712448
              dd-4267  [003] ....  8282.368510: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=714496
       flush-8:0-4272  [001] ....  8282.369497: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=708352
              dd-4267  [003] ....  8282.370048: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=716544
              dd-4267  [003] ....  8282.371633: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=718592
       flush-8:0-4272  [000] ....  8282.374078: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=710400
              dd-4267  [003] ....  8282.378185: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=720640
       flush-8:0-4272  [000] ....  8282.385965: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=712448
              dd-4267  [003] ....  8282.389259: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=722688
              dd-4267  [003] ....  8282.390925: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=724736
       flush-8:0-4272  [000] ....  8282.394370: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=714496
       flush-8:0-4272  [000] ....  8282.403366: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=716544
       flush-8:0-4272  [000] ....  8282.411168: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=718592
       flush-8:0-4272  [000] ....  8282.418447: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=720640
              dd-4267  [003] ....  8282.419012: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=726784
              dd-4267  [003] ....  8282.420711: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=728832
       flush-8:0-4272  [000] ....  8282.425497: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=722688
       flush-8:0-4272  [000] ....  8282.432174: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=724736
              dd-4267  [003] ....  8282.435607: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=730880
       flush-8:0-4272  [000] ....  8282.437550: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=726784
       flush-8:0-4272  [000] ....  8282.443269: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=728832
       flush-8:0-4272  [000] ....  8282.447516: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=730880
              dd-4267  [001] ....  8282.536821: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [002] ....  8282.594711: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=28847 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8282.594714: writeback_queue_io: bdi 8:0: older=4302924294 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [002] ....  8282.594714: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=28847 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8282.594717: writeback_pages_written: 24320
              dd-4267  [003] ....  8282.702707: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8282.766257: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732672
       flush-8:0-4272  [002] ....  8282.766275: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732672
              dd-4267  [003] ....  8282.766276: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732672
              dd-4267  [000] ....  8282.769626: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [002] ....  8282.770439: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732672
       flush-8:0-4272  [002] ....  8282.770448: writeback_pages_written: 256
              dd-4267  [000] ....  8282.792970: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732928
       flush-8:0-4272  [002] ....  8282.792985: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732928
              dd-4267  [000] ....  8282.792991: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732928
       flush-8:0-4272  [002] ....  8282.796612: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=732928
       flush-8:0-4272  [002] ....  8282.797095: writeback_pages_written: 512
              dd-4267  [001] ....  8282.803815: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=733440
       flush-8:0-4272  [002] ....  8282.803828: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=733440
              dd-4267  [000] ....  8282.805987: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8282.807590: writeback_pages_written: 256
              dd-4267  [002] ....  8282.816053: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8282.826012: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8282.836053: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8282.840123: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8282.862607: writeback_congestion_wait: usec_timeout=100000 usec_delayed=21000
              dd-4267  [000] ....  8282.866842: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8282.872692: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8282.876853: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8282.882737: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8282.887007: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8282.892840: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8282.897051: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8282.902856: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8282.907142: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8282.912979: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8282.917185: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8282.923050: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8282.927261: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8282.933120: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8282.937351: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8282.943169: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8282.947400: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8282.953258: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8282.957497: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8282.963315: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8282.965832: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8282.967943: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8282.976215: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=733696
       flush-8:0-4272  [002] ....  8282.976230: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=733696
              dd-4267  [000] ....  8282.976230: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=733696
              dd-4267  [000] ....  8282.977340: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8282.980514: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=733696
              dd-4267  [000] ....  8282.981192: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734464
       flush-8:0-4272  [002] ....  8282.981312: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734464
              dd-4267  [000] ....  8282.981745: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8282.981778: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734464
       flush-8:0-4272  [002] ....  8282.985084: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734464
       flush-8:0-4272  [002] ....  8282.985091: writeback_pages_written: 1024
              dd-4267  [000] ....  8282.985665: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734720
       flush-8:0-4272  [002] ....  8282.985674: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734720
              dd-4267  [000] ....  8282.985675: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734720
       flush-8:0-4272  [002] ....  8282.989807: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=734720
       flush-8:0-4272  [002] ....  8282.990230: writeback_pages_written: 512
              dd-4267  [003] ....  8283.089416: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8283.122929: writeback_congestion_wait: usec_timeout=100000 usec_delayed=33000
              dd-4267  [000] ....  8283.135611: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8283.145666: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8283.155723: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8283.165791: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8283.176075: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8283.181528: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.185688: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8283.187835: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735232
       flush-8:0-4272  [002] ....  8283.187848: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735232
              dd-4267  [000] ....  8283.187849: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735232
              dd-4267  [000] ....  8283.191527: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [002] ....  8283.192426: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735232
       flush-8:0-4272  [002] ....  8283.192847: writeback_pages_written: 512
              dd-4267  [000] ....  8283.195835: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.201634: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8283.205915: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8283.211685: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8283.215994: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.221809: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8283.226052: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8283.231889: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8283.236089: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.241969: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8283.246186: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8283.252004: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8283.256226: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.262106: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8283.266341: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8283.273554: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8283.277824: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.283655: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8283.287868: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8283.293646: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8283.297947: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.303809: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8283.312730: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8283.328557: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735744
       flush-8:0-4272  [002] ....  8283.328574: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735744
              dd-4267  [000] ....  8283.328582: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735744
              dd-4267  [000] ....  8283.330129: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=737792
              dd-4267  [000] ....  8283.331848: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=739840
              dd-4267  [000] ....  8283.333393: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=741888
       flush-8:0-4272  [002] ....  8283.333676: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=735744
              dd-4267  [000] ....  8283.334935: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=743936
              dd-4267  [000] ....  8283.337887: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.338115: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8283.431725: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=737792
       flush-8:0-4272  [002] ....  8283.439317: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=739840
       flush-8:0-4272  [002] ....  8283.447089: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=741888
       flush-8:0-4272  [002] ....  8283.454001: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=743936
       flush-8:0-4272  [002] ....  8283.459772: writeback_pages_written: 9984
              dd-4267  [001] ....  8283.537146: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=745728
       flush-8:0-4272  [002] ....  8283.537162: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=745728
              dd-4267  [001] ....  8283.537171: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=745728
              dd-4267  [001] ....  8283.539419: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=747776
              dd-4267  [001] ....  8283.541208: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=749824
       flush-8:0-4272  [002] ....  8283.541833: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=745728
       flush-8:0-4272  [002] ....  8283.545118: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=747776
              dd-4267  [001] ....  8283.545748: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=751872
              dd-4267  [001] ....  8283.547488: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=753920
       flush-8:0-4272  [002] ....  8283.552959: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=749824
              dd-4267  [001] ....  8283.558579: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=755968
       flush-8:0-4272  [002] ....  8283.559396: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=751872
              dd-4267  [001] ....  8283.561724: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8283.565992: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=753920
       flush-8:0-4272  [002] ....  8283.570817: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=755968
       flush-8:0-4272  [002] ....  8283.574693: writeback_pages_written: 12032
              dd-4267  [003] ....  8283.668117: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8283.743847: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8283.747107: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=757760
       flush-8:0-4272  [002] ....  8283.747123: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=757760
              dd-4267  [000] ....  8283.747124: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=757760
       flush-8:0-4272  [002] ....  8283.751308: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=757760
              dd-4267  [000] ....  8283.751309: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=759296
              dd-4267  [000] ....  8283.752829: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=761344
       flush-8:0-4272  [002] ....  8283.753579: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=759296
              dd-4267  [001] ....  8283.756564: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=763392
       flush-8:0-4272  [002] ....  8283.756906: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=761344
       flush-8:0-4272  [002] ....  8283.762110: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=763392
       flush-8:0-4272  [002] ....  8283.764271: writeback_pages_written: 6400
              dd-4267  [003] ....  8283.857011: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8283.973375: writeback_congestion_wait: usec_timeout=100000 usec_delayed=55000
              dd-4267  [002] ....  8284.011625: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764160
       flush-8:0-4272  [000] ....  8284.011640: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764160
              dd-4267  [002] ....  8284.011645: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764160
              dd-4267  [002] ....  8284.013208: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [000] ....  8284.015143: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764160
       flush-8:0-4272  [000] ....  8284.015149: writeback_pages_written: 256
              dd-4267  [000] ....  8284.019069: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8284.023215: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8284.030639: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8284.034941: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8284.040920: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8284.051372: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [000] ....  8284.061660: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8284.071910: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8284.082199: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8284.092449: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8284.102756: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8284.106747: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764416
       flush-8:0-4272  [002] ....  8284.106761: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764416
              dd-4267  [000] ....  8284.106772: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764416
       flush-8:0-4272  [002] ....  8284.110412: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764416
       flush-8:0-4272  [002] ....  8284.110420: writeback_pages_written: 256
              dd-4267  [002] ....  8284.113017: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8284.117024: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764672
       flush-8:0-4272  [000] ....  8284.117035: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764672
              dd-4267  [002] ....  8284.117041: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764672
       flush-8:0-4272  [000] ....  8284.120264: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764672
       flush-8:0-4272  [000] ....  8284.120271: writeback_pages_written: 256
              dd-4267  [000] ....  8284.123300: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8284.133583: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8284.145288: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [002] ....  8284.149617: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8284.153959: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8284.159928: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8284.164244: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8284.170143: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8284.174494: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8284.180462: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8284.184792: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8284.190718: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8284.195060: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8284.201037: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8284.205349: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8284.211282: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8284.215607: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8284.217861: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764928
       flush-8:0-4272  [002] ....  8284.217873: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764928
              dd-4267  [000] ....  8284.217883: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764928
              dd-4267  [000] ....  8284.219412: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=766976
       flush-8:0-4272  [002] ....  8284.222662: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=764928
              dd-4267  [000] ....  8284.224852: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=769024
       flush-8:0-4272  [001] ....  8284.226978: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=766976
              dd-4267  [000] ....  8284.231789: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [001] ....  8284.234737: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=769024
              dd-4267  [000] ....  8284.236127: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8284.242083: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [001] ....  8284.537975: writeback_pages_written: 5376
              dd-4267  [002] ....  8284.712091: writeback_congestion_wait: usec_timeout=100000 usec_delayed=97000
              dd-4267  [002] ....  8284.714592: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8284.718902: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8284.721113: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8284.723558: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8284.729274: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8284.730891: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=770304
       flush-8:0-4272  [001] ....  8284.730909: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=770304
              dd-4267  [000] ....  8284.731346: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=770304
              dd-4267  [000] ....  8284.733058: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=772352
       flush-8:0-4272  [001] ....  8284.735492: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=770304
              dd-4267  [000] ....  8284.736899: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=774400
              dd-4267  [000] ....  8284.738556: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=776448
       flush-8:0-4272  [001] ....  8284.738766: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=772352
              dd-4267  [000] ....  8284.743348: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [001] ....  8284.745968: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=774400
              dd-4267  [000] ....  8284.749665: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=778496
       flush-8:0-4272  [001] ....  8284.751572: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=776448
              dd-4267  [000] ....  8284.753153: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [001] ....  8284.757398: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=778496
              dd-4267  [000] ....  8284.757400: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=779008
       flush-8:0-4272  [001] ....  8284.760124: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=779008
       flush-8:0-4272  [001] ....  8284.761353: writeback_pages_written: 9728
              dd-4267  [002] ....  8284.857465: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8284.912787: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=780032
       flush-8:0-4272  [001] ....  8284.912808: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=780032
              dd-4267  [002] ....  8284.912815: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=780032
       flush-8:0-4272  [001] ....  8284.916025: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=780032
       flush-8:0-4272  [001] ....  8284.918844: writeback_pages_written: 2048
              dd-4267  [003] ....  8284.940686: writeback_congestion_wait: usec_timeout=100000 usec_delayed=26000
              dd-4267  [003] ....  8284.978581: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782080
       flush-8:0-4272  [001] ....  8284.978599: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782080
              dd-4267  [003] ....  8284.978602: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782080
       flush-8:0-4272  [001] ....  8284.982521: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782080
       flush-8:0-4272  [001] ....  8284.982946: writeback_pages_written: 512
              dd-4267  [003] ....  8284.983056: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782592
       flush-8:0-4272  [001] ....  8284.983063: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782592
              dd-4267  [003] ....  8284.983064: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782592
              dd-4267  [003] ....  8284.984577: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=784640
       flush-8:0-4272  [001] ....  8284.985859: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=782592
       flush-8:0-4272  [000] ....  8284.989292: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=784640
              dd-4267  [003] ....  8284.990536: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=785664
              dd-4267  [003] ....  8284.992120: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=787712
       flush-8:0-4272  [000] ....  8284.994372: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=785664
       flush-8:0-4272  [000] ....  8284.997795: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=787712
       flush-8:0-4272  [000] ....  8285.000496: writeback_pages_written: 5888
              dd-4267  [001] ....  8285.092449: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8285.177444: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788480
       flush-8:0-4272  [000] ....  8285.177462: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788480
              dd-4267  [001] ....  8285.177462: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788480
              dd-4267  [001] ....  8285.179141: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [000] ....  8285.181333: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788480
       flush-8:0-4272  [000] ....  8285.181342: writeback_pages_written: 256
              dd-4267  [001] ....  8285.183347: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788736
       flush-8:0-4272  [000] ....  8285.183364: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788736
              dd-4267  [001] ....  8285.183373: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788736
       flush-8:0-4272  [000] ....  8285.185778: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788736
       flush-8:0-4272  [000] ....  8285.185784: writeback_pages_written: 256
              dd-4267  [001] ....  8285.188015: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8285.197816: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8285.207603: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8285.217253: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8285.219617: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8285.224224: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8285.260785: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788992
       flush-8:0-4272  [000] ....  8285.260803: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788992
              dd-4267  [003] ....  8285.260804: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788992
              dd-4267  [003] ....  8285.262513: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=791040
       flush-8:0-4272  [000] ....  8285.265222: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=788992
       flush-8:0-4272  [000] ....  8285.269537: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=791040
              dd-4267  [001] ....  8285.270972: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
       flush-8:0-4272  [000] ....  8285.275330: writeback_pages_written: 3840
              dd-4267  [003] ....  8285.324595: writeback_congestion_wait: usec_timeout=100000 usec_delayed=46000
              dd-4267  [001] ....  8285.428150: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8285.428951: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8285.433539: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8285.440157: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8285.449269: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8285.455291: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=792832
       flush-8:0-4272  [000] ....  8285.455308: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=792832
              dd-4267  [001] ....  8285.455310: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=792832
              dd-4267  [001] ....  8285.457006: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=794880
              dd-4267  [001] ....  8285.458912: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [000] ....  8285.459455: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=792832
       flush-8:0-4272  [000] ....  8285.462753: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=794880
              dd-4267  [003] ....  8285.462940: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [000] ....  8285.465164: writeback_pages_written: 2304
              dd-4267  [003] ....  8285.465311: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795136
       flush-8:0-4272  [000] ....  8285.465328: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795136
              dd-4267  [003] ....  8285.465330: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795136
       flush-8:0-4272  [000] ....  8285.467314: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795136
       flush-8:0-4272  [000] ....  8285.467319: writeback_pages_written: 256
              dd-4267  [001] ....  8285.478696: writeback_congestion_wait: usec_timeout=100000 usec_delayed=13000
              dd-4267  [002] ....  8285.511501: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8285.519624: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8285.529305: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8285.529483: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8285.541032: writeback_congestion_wait: usec_timeout=100000 usec_delayed=9000
              dd-4267  [000] ....  8285.577136: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795392
       flush-8:0-4272  [002] ....  8285.577156: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795392
              dd-4267  [000] ....  8285.577638: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795392
       flush-8:0-4272  [002] ....  8285.581251: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795392
       flush-8:0-4272  [002] ....  8285.581647: writeback_pages_written: 512
              dd-4267  [002] ....  8285.676988: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8285.698727: writeback_congestion_wait: usec_timeout=100000 usec_delayed=21000
              dd-4267  [000] ....  8285.701218: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8285.710431: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8285.718230: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8285.722253: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795904
       flush-8:0-4272  [002] ....  8285.722266: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795904
              dd-4267  [000] ....  8285.722267: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795904
              dd-4267  [000] ....  8285.723781: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=797952
              dd-4267  [000] ....  8285.725289: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=800000
       flush-8:0-4272  [002] ....  8285.726260: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=795904
              dd-4267  [000] ....  8285.728248: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [002] ....  8285.729667: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=797952
       flush-8:0-4272  [002] ....  8285.735947: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=800000
       flush-8:0-4272  [002] ....  8285.740515: writeback_pages_written: 5632
              dd-4267  [000] ....  8285.743317: writeback_congestion_wait: usec_timeout=100000 usec_delayed=11000
              dd-4267  [000] ....  8285.748737: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=801536
       flush-8:0-4272  [002] ....  8285.748749: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=801536
              dd-4267  [000] ....  8285.748750: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=801536
              dd-4267  [000] ....  8285.750301: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=803584
       flush-8:0-4272  [002] ....  8285.751451: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=801536
              dd-4267  [000] ....  8285.789981: writeback_congestion_wait: usec_timeout=100000 usec_delayed=39000
       flush-8:0-4272  [000] ....  8285.820051: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=803584
       flush-8:0-4272  [000] ....  8285.824204: writeback_pages_written: 3072
              dd-4267  [002] ....  8285.877041: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=804608
       flush-8:0-4272  [000] ....  8285.877059: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=804608
              dd-4267  [002] ....  8285.877059: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=804608
       flush-8:0-4272  [000] ....  8285.880219: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=804608
              dd-4267  [002] ....  8285.881976: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [000] ....  8285.883304: writeback_pages_written: 2048
              dd-4267  [000] ....  8285.913064: writeback_congestion_wait: usec_timeout=100000 usec_delayed=27000
              dd-4267  [000] ....  8285.953294: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8285.993092: writeback_congestion_wait: usec_timeout=100000 usec_delayed=40000
              dd-4267  [000] ....  8286.017921: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806656
       flush-8:0-4272  [002] ....  8286.017941: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806656
              dd-4267  [000] ....  8286.017942: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806656
       flush-8:0-4272  [002] ....  8286.022344: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806656
       flush-8:0-4272  [002] ....  8286.022351: writeback_pages_written: 256
              dd-4267  [000] ....  8286.022457: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806912
       flush-8:0-4272  [002] ....  8286.022463: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806912
              dd-4267  [000] ....  8286.022464: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806912
       flush-8:0-4272  [002] ....  8286.025804: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=806912
              dd-4267  [001] ....  8286.025808: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=807680
       flush-8:0-4272  [002] ....  8286.027152: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=807680
              dd-4267  [001] ....  8286.027154: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=809216
       flush-8:0-4272  [002] ....  8286.030162: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=809216
              dd-4267  [001] ....  8286.030934: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=810752
       flush-8:0-4272  [002] ....  8286.032432: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=810752
              dd-4267  [001] ....  8286.032436: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=812288
       flush-8:0-4272  [002] ....  8286.037770: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=812288
       flush-8:0-4272  [002] ....  8286.038525: writeback_pages_written: 6144
              dd-4267  [003] ....  8286.131784: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8286.193153: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813056
       flush-8:0-4272  [002] ....  8286.193171: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813056
              dd-4267  [003] ....  8286.193182: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813056
              dd-4267  [000] ....  8286.194538: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8286.197515: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813056
       flush-8:0-4272  [002] ....  8286.198149: writeback_pages_written: 512
              dd-4267  [000] ....  8286.204432: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8286.208413: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8286.214233: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8286.218379: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8286.224189: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8286.228384: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8286.234169: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8286.238355: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8286.244159: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8286.248349: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8286.254131: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8286.258310: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8286.268537: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8286.278455: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8286.288438: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8286.298422: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8286.308378: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8286.311951: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813568
       flush-8:0-4272  [000] ....  8286.311964: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813568
              dd-4267  [002] ....  8286.311974: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813568
              dd-4267  [002] ....  8286.313470: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=815616
       flush-8:0-4272  [000] ....  8286.316042: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=813568
              dd-4267  [002] ....  8286.318069: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [000] ....  8286.319085: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=815616
              dd-4267  [001] ....  8286.323896: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [000] ....  8286.324156: writeback_pages_written: 3584
              dd-4267  [002] ....  8286.328179: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8286.333974: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8286.338144: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8286.343939: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8286.348136: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8286.353914: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8286.358096: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8286.363902: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8286.368092: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8286.375470: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8286.379691: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8286.390024: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8286.394213: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=817152
       flush-8:0-4272  [002] ....  8286.394227: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=817152
              dd-4267  [000] ....  8286.394228: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=817152
              dd-4267  [000] ....  8286.395740: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=819200
       flush-8:0-4272  [002] ....  8286.397700: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=817152
              dd-4267  [000] ....  8286.399729: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8286.399908: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8286.400793: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=819200
              dd-4267  [000] ....  8286.403696: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=821248
       flush-8:0-4272  [002] ....  8286.406096: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=821248
       flush-8:0-4272  [002] ....  8286.408455: writeback_pages_written: 4608
              dd-4267  [000] ....  8286.490429: writeback_congestion_wait: usec_timeout=100000 usec_delayed=86000
              dd-4267  [000] ....  8287.253038: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=821760
       flush-8:0-4272  [002] ....  8287.253056: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=821760
              dd-4267  [000] ....  8287.253111: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=821760
              dd-4267  [000] ....  8287.256585: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=823808
              dd-4267  [000] ....  8287.258183: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=825856
       flush-8:0-4272  [002] ....  8287.259493: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=821760
              dd-4267  [001] ....  8287.259950: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=827904
              dd-4267  [001] ....  8287.261742: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=829952
       flush-8:0-4272  [002] ....  8287.262677: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=823808
              dd-4267  [001] ....  8287.264192: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=832000
              dd-4267  [001] ....  8287.265825: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=834048
              dd-4267  [001] ....  8287.267436: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=836096
              dd-4267  [001] ....  8287.269029: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=838144
              dd-4267  [001] ....  8287.270652: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=840192
       flush-8:0-4272  [002] ....  8287.271798: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=825856
              dd-4267  [001] ....  8287.272253: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=842240
              dd-4267  [001] ....  8287.273814: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=844288
       flush-8:0-4272  [002] ....  8287.280257: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=827904
       flush-8:0-4272  [002] ....  8287.286640: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=829952
       flush-8:0-4272  [002] ....  8287.292224: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=832000
       flush-8:0-4272  [002] ....  8287.297298: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=834048
              dd-4267  [003] ....  8287.375066: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [000] ....  8287.433845: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=836096
       flush-8:0-4272  [000] ....  8287.439490: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=838144
       flush-8:0-4272  [000] ....  8287.444495: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=840192
       flush-8:0-4272  [000] ....  8287.449427: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=842240
              dd-4267  [001] ....  8287.568053: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [002] ....  8287.589239: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=844288
       flush-8:0-4272  [002] ....  8287.594059: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=25531 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8287.594061: writeback_queue_io: bdi 8:0: older=4302929296 age=30000 enqueue=1 reason=periodic
       flush-8:0-4272  [002] ....  8287.594217: writeback_single_inode: bdi 8:0: ino=0 state= dirtied_when=4302926220 age=51 index=62423040 to_write=1024 wrote=60
       flush-8:0-4272  [002] ....  8287.594220: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=25471 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8287.594220: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=25471 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8287.594220: writeback_queue_io: bdi 8:0: older=4302929296 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [002] ....  8287.594221: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=25471 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [002] ....  8287.594223: writeback_pages_written: 24636
              dd-4267  [003] ....  8287.725915: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8287.867240: writeback_congestion_wait: usec_timeout=100000 usec_delayed=68000
              dd-4267  [000] ....  8287.929273: writeback_congestion_wait: usec_timeout=100000 usec_delayed=29000
              dd-4267  [000] ....  8287.933932: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8287.943436: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8287.953437: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8287.963311: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8287.968957: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8287.971328: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8287.975932: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8287.996004: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8288.000541: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8288.007408: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8288.017420: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8288.024017: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8288.029668: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8288.034148: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8288.038464: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8288.042966: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8288.145630: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8288.198092: writeback_congestion_wait: usec_timeout=100000 usec_delayed=52000
              dd-4267  [000] ....  8288.214718: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8288.224982: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8288.235294: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8288.245537: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8288.255814: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8288.262402: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8288.270398: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8288.281573: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8288.285848: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8288.293826: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8288.298364: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8288.306692: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8288.316956: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8288.327285: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8288.337529: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8288.343307: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8288.350208: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8288.360343: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8288.364844: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8288.368427: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=846336
       flush-8:0-4272  [002] ....  8288.368440: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=846336
              dd-4267  [000] ....  8288.368442: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=846336
              dd-4267  [000] ....  8288.374199: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=848384
       flush-8:0-4272  [002] ....  8288.374913: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=846336
              dd-4267  [001] ....  8288.376663: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=850432
       flush-8:0-4272  [002] ....  8288.377993: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=848384
              dd-4267  [001] ....  8288.378387: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=852480
              dd-4267  [001] ....  8288.380037: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=854528
              dd-4267  [001] ....  8288.381692: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=856576
       flush-8:0-4272  [002] ....  8288.387743: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=850432
              dd-4267  [001] ....  8288.390190: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=858624
       flush-8:0-4272  [002] ....  8288.395961: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=852480
       flush-8:0-4272  [002] ....  8288.403948: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=854528
              dd-4267  [001] ....  8288.404992: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=860672
              dd-4267  [001] ....  8288.406709: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=862720
              dd-4267  [001] ....  8288.408423: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=864768
              dd-4267  [001] ....  8288.410722: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=866816
       flush-8:0-4272  [002] ....  8288.410728: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=856576
              dd-4267  [001] ....  8288.412372: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=868864
       flush-8:0-4272  [002] ....  8288.417731: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=858624
       flush-8:0-4272  [002] ....  8288.422959: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=860672
       flush-8:0-4272  [002] ....  8288.427513: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=862720
       flush-8:0-4272  [002] ....  8288.431706: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=864768
       flush-8:0-4272  [002] ....  8288.435613: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=866816
              dd-4267  [003] ....  8288.513425: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8288.613432: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [002] ....  8288.807055: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=868864
       flush-8:0-4272  [002] ....  8288.813588: writeback_pages_written: 24320
              dd-4267  [003] ....  8288.964246: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8289.018315: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=870656
       flush-8:0-4272  [002] ....  8289.018333: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=870656
              dd-4267  [003] ....  8289.018334: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=870656
       flush-8:0-4272  [002] ....  8289.022448: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=870656
       flush-8:0-4272  [002] ....  8289.023068: writeback_pages_written: 512
              dd-4267  [000] .N..  8289.043118: writeback_congestion_wait: usec_timeout=100000 usec_delayed=24000
              dd-4267  [000] ....  8289.062610: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8289.072452: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.082237: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8289.092057: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.101888: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.113107: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [000] ....  8289.117139: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871168
       flush-8:0-4272  [002] ....  8289.117151: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871168
              dd-4267  [000] ....  8289.117152: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871168
       flush-8:0-4272  [002] ....  8289.120609: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871168
       flush-8:0-4272  [002] ....  8289.121378: writeback_pages_written: 768
              dd-4267  [000] ....  8289.122889: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8289.132666: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.140943: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8289.145446: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8289.149985: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8289.154423: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8289.169836: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8289.174289: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8289.239886: writeback_congestion_wait: usec_timeout=100000 usec_delayed=62000
              dd-4267  [000] ....  8289.244347: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8289.248919: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8289.258780: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.268549: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.278371: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8289.288216: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8289.297985: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8289.307821: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.317661: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.327410: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8289.337217: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8289.347038: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.353471: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8289.359251: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8289.363735: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8289.368137: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8289.372635: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8289.377206: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8289.480585: writeback_congestion_wait: usec_timeout=100000 usec_delayed=81000
              dd-4267  [000] ....  8289.482791: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8289.485066: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8289.487555: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8289.495298: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8289.505137: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8289.514910: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [002] ....  8289.520479: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8289.527108: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8289.544021: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871936
       flush-8:0-4272  [002] ....  8289.544039: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871936
              dd-4267  [000] ....  8289.544046: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871936
              dd-4267  [000] ....  8289.545565: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=873984
              dd-4267  [000] ....  8289.547139: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=876032
              dd-4267  [000] ....  8289.548677: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=878080
       flush-8:0-4272  [002] ....  8289.549822: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=871936
              dd-4267  [000] ....  8289.553126: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=880128
       flush-8:0-4272  [001] ....  8289.554779: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=873984
       flush-8:0-4272  [001] ....  8289.567484: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=876032
              dd-4267  [000] ....  8289.568912: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=882176
              dd-4267  [000] ....  8289.570643: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=884224
              dd-4267  [000] ....  8289.572336: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=886272
              dd-4267  [000] ....  8289.574000: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=888320
       flush-8:0-4272  [001] ....  8289.575450: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=878080
              dd-4267  [000] ....  8289.575687: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=890368
              dd-4267  [000] ....  8289.577346: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=892416
              dd-4267  [000] ....  8289.579606: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=894464
       flush-8:0-4272  [001] ....  8289.583703: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=880128
       flush-8:0-4272  [001] ....  8289.590178: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=882176
       flush-8:0-4272  [001] ....  8289.595612: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=884224
       flush-8:0-4272  [001] ....  8289.600583: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=886272
       flush-8:0-4272  [001] ....  8289.605480: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=888320
       flush-8:0-4272  [001] ....  8289.610298: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=890368
       flush-8:0-4272  [001] ....  8289.614567: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=892416
              dd-4267  [002] ....  8289.679818: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [001] ....  8289.790935: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1280 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=894464
       flush-8:0-4272  [001] ....  8289.794239: writeback_pages_written: 23808
              dd-4267  [000] ....  8289.830712: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8289.979274: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=895744
       flush-8:0-4272  [001] ....  8289.979295: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=895744
              dd-4267  [000] ....  8289.979299: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=895744
       flush-8:0-4272  [001] ....  8289.984149: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=895744
       flush-8:0-4272  [001] ....  8289.985910: writeback_pages_written: 1024
              dd-4267  [003] ....  8289.986879: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8289.989278: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8289.993746: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8290.022891: writeback_congestion_wait: usec_timeout=100000 usec_delayed=29000
              dd-4267  [003] ....  8290.138516: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8290.238484: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8290.258044: writeback_congestion_wait: usec_timeout=100000 usec_delayed=19000
              dd-4267  [001] ....  8290.272386: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8290.282389: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.292359: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.302381: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8290.312326: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.330620: writeback_congestion_wait: usec_timeout=100000 usec_delayed=15000
              dd-4267  [001] ....  8290.340609: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8290.350579: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8290.360570: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8290.370533: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.380548: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8290.390506: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8290.400468: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.410469: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8290.420238: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8290.424433: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8290.430244: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8290.434405: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8290.440201: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8290.444394: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8290.450177: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8290.454365: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8290.460164: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8290.464360: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8290.466690: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8290.472687: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.494518: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8290.499431: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8290.506101: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8290.514874: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8290.525026: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8290.535090: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.545126: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8290.550820: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8290.555010: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8290.560856: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8290.573413: writeback_congestion_wait: usec_timeout=100000 usec_delayed=11000
              dd-4267  [001] ....  8290.579244: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8290.585075: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8290.589299: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8290.591103: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=896768
       flush-8:0-4272  [001] ....  8290.591114: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=896768
              dd-4267  [003] ....  8290.591115: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=896768
              dd-4267  [003] ....  8290.592629: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=898816
              dd-4267  [003] ....  8290.594151: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=900864
              dd-4267  [003] ....  8290.595687: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=902912
       flush-8:0-4272  [001] ....  8290.596742: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=896768
       flush-8:0-4272  [001] ....  8290.599560: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=898816
              dd-4267  [003] ....  8290.599589: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=904960
              dd-4267  [000] ....  8290.601759: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=907008
              dd-4267  [000] ....  8290.604180: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=909056
              dd-4267  [000] ....  8290.606776: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8290.606967: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [001] ....  8290.608163: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=900864
              dd-4267  [003] ....  8290.616932: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [001] ....  8290.807466: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=902912
       flush-8:0-4272  [001] ....  8290.815087: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=904960
       flush-8:0-4272  [000] ....  8290.825087: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=907008
       flush-8:0-4272  [000] ....  8290.833291: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=909056
       flush-8:0-4272  [000] ....  8290.837230: writeback_pages_written: 13056
              dd-4267  [003] ....  8290.898320: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=909824
       flush-8:0-4272  [000] ....  8290.898341: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=909824
              dd-4267  [003] ....  8290.898342: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=909824
              dd-4267  [003] ....  8290.900086: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=911872
              dd-4267  [003] ....  8290.902263: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=913920
       flush-8:0-4272  [000] ....  8290.903241: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=909824
              dd-4267  [003] ....  8290.903966: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=915968
              dd-4267  [003] ....  8290.905605: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=918016
       flush-8:0-4272  [000] ....  8290.907371: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=911872
       flush-8:0-4272  [000] ....  8290.914048: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=913920
       flush-8:0-4272  [000] ....  8290.919004: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=915968
       flush-8:0-4272  [000] ....  8290.923475: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=918016
       flush-8:0-4272  [000] ....  8290.927621: writeback_pages_written: 10240
              dd-4267  [001] ....  8291.007124: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8291.055558: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920064
       flush-8:0-4272  [000] ....  8291.055576: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920064
              dd-4267  [001] ....  8291.055577: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920064
       flush-8:0-4272  [000] ....  8291.058663: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920064
       flush-8:0-4272  [000] ....  8291.058672: writeback_pages_written: 256
              dd-4267  [000] ....  8291.120020: writeback_congestion_wait: usec_timeout=100000 usec_delayed=65000
              dd-4267  [000] ....  8291.228552: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920320
       flush-8:0-4272  [002] ....  8291.228569: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920320
              dd-4267  [000] ....  8291.228570: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920320
              dd-4267  [000] ....  8291.230580: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=922368
              dd-4267  [000] ....  8291.232100: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=924416
       flush-8:0-4272  [002] ....  8291.232583: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=920320
       flush-8:0-4272  [002] ....  8291.235968: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=922368
       flush-8:0-4272  [002] ....  8291.241987: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=924416
              dd-4267  [000] ....  8291.242861: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8291.246767: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=926464
       flush-8:0-4272  [002] ....  8291.247352: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=926464
       flush-8:0-4272  [002] ....  8291.249590: writeback_pages_written: 6400
              dd-4267  [000] ....  8291.303192: writeback_congestion_wait: usec_timeout=100000 usec_delayed=57000
              dd-4267  [002] ....  8291.418747: writeback_congestion_wait: usec_timeout=100000 usec_delayed=70000
              dd-4267  [000] ....  8291.421290: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8291.430170: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8291.438818: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8291.448613: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8291.452546: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8291.458291: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8291.463059: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8291.501991: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [002] ....  8291.511822: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8291.521615: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8291.531477: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8291.541259: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8291.545313: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=926720
       flush-8:0-4272  [002] ....  8291.545327: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=926720
              dd-4267  [000] ....  8291.545329: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=926720
              dd-4267  [000] ....  8291.546859: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=928768
       flush-8:0-4272  [002] ....  8291.549677: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=926720
              dd-4267  [000] ....  8291.550805: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [000] ....  8291.550981: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8291.553082: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=928768
              dd-4267  [000] ....  8291.554588: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=929536
              dd-4267  [001] ....  8291.556446: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=931584
       flush-8:0-4272  [002] ....  8291.558013: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=929536
              dd-4267  [001] ....  8291.558925: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=933632
       flush-8:0-4272  [002] ....  8291.560978: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=931584
              dd-4267  [001] ....  8291.561309: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=935680
              dd-4267  [000] ....  8291.566775: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
       flush-8:0-4272  [002] ....  8291.567625: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=933632
       flush-8:0-4272  [000] ....  8291.691938: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=935680
       flush-8:0-4272  [000] ....  8291.696544: writeback_pages_written: 9984
              dd-4267  [000] ....  8291.755429: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8291.765681: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8291.769854: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936704
       flush-8:0-4272  [002] ....  8291.769869: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936704
              dd-4267  [000] ....  8291.769870: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936704
              dd-4267  [000] ....  8291.771371: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [002] ....  8291.773234: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936704
       flush-8:0-4272  [002] ....  8291.773241: writeback_pages_written: 256
              dd-4267  [002] ....  8291.775760: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8291.781707: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [000] ....  8291.784087: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8291.788791: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8291.809228: writeback_congestion_wait: usec_timeout=100000 usec_delayed=12000
              dd-4267  [000] ....  8291.811942: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8291.819305: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936960
       flush-8:0-4272  [002] ....  8291.819318: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936960
              dd-4267  [000] ....  8291.819319: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936960
              dd-4267  [000] ....  8291.820882: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=939008
              dd-4267  [000] ....  8291.822428: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=941056
       flush-8:0-4272  [002] ....  8291.822757: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=936960
              dd-4267  [000] ....  8291.824434: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=943104
       flush-8:0-4272  [002] ....  8291.825686: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=939008
              dd-4267  [000] ....  8291.827048: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8291.827226: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [002] ....  8291.831471: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=941056
       flush-8:0-4272  [002] ....  8291.836478: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=943104
       flush-8:0-4272  [002] ....  8291.839973: writeback_pages_written: 7680
              dd-4267  [002] ....  8291.930645: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8291.992029: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944640
       flush-8:0-4272  [000] ....  8291.992046: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944640
              dd-4267  [002] ....  8291.992056: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944640
       flush-8:0-4272  [000] ....  8291.994832: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944640
       flush-8:0-4272  [000] ....  8291.994838: writeback_pages_written: 256
              dd-4267  [002] ....  8292.030123: writeback_congestion_wait: usec_timeout=100000 usec_delayed=38000
              dd-4267  [002] ....  8292.050503: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [002] ....  8292.054831: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [000] ....  8292.060738: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8292.065103: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8292.071061: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8292.075356: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8292.081306: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8292.087263: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8292.091595: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8292.097536: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8292.122806: writeback_congestion_wait: usec_timeout=100000 usec_delayed=24000
              dd-4267  [002] ....  8292.127164: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8292.168759: writeback_congestion_wait: usec_timeout=100000 usec_delayed=38000
              dd-4267  [000] ....  8292.173114: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8292.235518: writeback_congestion_wait: usec_timeout=100000 usec_delayed=59000
              dd-4267  [002] ....  8292.240176: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8292.247496: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8292.257469: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8292.267454: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [002] ....  8292.273257: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [000] ....  8292.277430: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8292.283231: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8292.287413: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8292.293190: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8292.297383: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8292.303189: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8292.305193: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944896
       flush-8:0-4272  [000] ....  8292.305204: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944896
              dd-4267  [002] ....  8292.305205: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944896
              dd-4267  [002] ....  8292.306738: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=946944
              dd-4267  [002] ....  8292.309833: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=948992
              dd-4267  [000] ....  8292.313157: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
       flush-8:0-4272  [000] ....  8292.735920: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=944896
       flush-8:0-4272  [000] ....  8292.740409: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=946944
       flush-8:0-4272  [001] ....  8292.748894: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=948992
       flush-8:0-4272  [001] ....  8292.752966: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=33828 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [001] ....  8292.752968: writeback_queue_io: bdi 8:0: older=4302934457 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [001] ....  8292.752968: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=33828 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [001] ....  8292.752971: writeback_pages_written: 4864
              dd-4267  [002] ....  8292.865367: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=949760
       flush-8:0-4272  [001] ....  8292.865385: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=949760
              dd-4267  [002] ....  8292.865386: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=949760
              dd-4267  [002] ....  8292.867161: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=951808
              dd-4267  [002] ....  8292.868811: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=953856
              dd-4267  [002] ....  8292.870466: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=955904
       flush-8:0-4272  [001] ....  8292.871705: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=949760
              dd-4267  [002] ....  8292.873150: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=957952
              dd-4267  [002] ....  8292.875731: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=960000
       flush-8:0-4272  [001] ....  8292.876282: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=951808
       flush-8:0-4272  [001] ....  8292.883855: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=953856
       flush-8:0-4272  [001] ....  8292.889576: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=955904
       flush-8:0-4272  [001] ....  8292.894750: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=957952
       flush-8:0-4272  [001] ....  8292.899538: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=960000
       flush-8:0-4272  [001] ....  8292.901892: writeback_pages_written: 11008
              dd-4267  [000] ....  8292.976950: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8293.020761: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=960768
       flush-8:0-4272  [003] ....  8293.020778: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=960768
              dd-4267  [001] ....  8293.021248: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=960768
       flush-8:0-4272  [003] ....  8293.023781: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=960768
       flush-8:0-4272  [003] ....  8293.023789: writeback_pages_written: 256
              dd-4267  [001] ....  8293.083843: writeback_congestion_wait: usec_timeout=100000 usec_delayed=62000
              dd-4267  [003] ....  8293.097927: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.108016: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8293.126388: writeback_congestion_wait: usec_timeout=100000 usec_delayed=14000
              dd-4267  [001] ....  8293.136458: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8293.146577: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.156636: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.166659: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.170791: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=961024
       flush-8:0-4272  [003] ....  8293.170804: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=961024
              dd-4267  [001] ....  8293.170805: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=961024
              dd-4267  [001] ....  8293.172326: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=963072
              dd-4267  [001] ....  8293.173830: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=965120
       flush-8:0-4272  [003] ....  8293.174168: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=961024
              dd-4267  [001] ....  8293.175352: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=967168
       flush-8:0-4272  [003] ....  8293.177053: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=963072
       flush-8:0-4272  [003] ....  8293.182445: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=965120
              dd-4267  [002] ....  8293.282859: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
       flush-8:0-4272  [003] ....  8293.321004: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=967168
       flush-8:0-4272  [003] ....  8293.325879: writeback_pages_written: 8192
              dd-4267  [002] ....  8293.424762: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [002] ....  8293.428997: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8293.434825: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.439025: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8293.444901: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.449071: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8293.454973: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.459202: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8293.465002: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.469260: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8293.475132: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.479335: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8293.485174: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.489424: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8293.495268: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.499474: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8293.505310: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [002] ....  8293.509565: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8293.515405: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8293.519611: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8293.529871: writeback_congestion_wait: usec_timeout=100000 usec_delayed=8000
              dd-4267  [001] ....  8293.539968: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8293.550034: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.560097: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8293.570116: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [003] ....  8293.574101: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969216
       flush-8:0-4272  [001] ....  8293.574114: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969216
              dd-4267  [003] ....  8293.574119: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969216
       flush-8:0-4272  [001] ....  8293.578134: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969216
       flush-8:0-4272  [001] ....  8293.578142: writeback_pages_written: 256
              dd-4267  [001] ....  8293.580245: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.583993: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969472
       flush-8:0-4272  [003] ....  8293.584005: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969472
              dd-4267  [001] ....  8293.584006: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969472
              dd-4267  [001] ....  8293.585670: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=971520
       flush-8:0-4272  [003] ....  8293.587582: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=969472
              dd-4267  [001] ....  8293.590259: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
       flush-8:0-4272  [003] ....  8293.590489: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=971520
       flush-8:0-4272  [003] ....  8293.593743: writeback_pages_written: 2560
              dd-4267  [001] ....  8293.594087: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=972032
       flush-8:0-4272  [003] ....  8293.594095: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=972032
              dd-4267  [001] ....  8293.594104: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=972032
              dd-4267  [001] ....  8293.595677: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974080
       flush-8:0-4272  [003] ....  8293.596789: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=972032
       flush-8:0-4272  [003] ....  8293.599663: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974080
       flush-8:0-4272  [003] ....  8293.601695: writeback_pages_written: 2304
              dd-4267  [001] ....  8293.620507: writeback_congestion_wait: usec_timeout=100000 usec_delayed=24000
              dd-4267  [001] ....  8293.640663: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8293.648906: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8293.657732: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8293.662163: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8293.666667: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8293.719584: writeback_congestion_wait: usec_timeout=100000 usec_delayed=48000
              dd-4267  [001] ....  8293.721790: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8293.724056: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8293.731220: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8293.741252: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.748399: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8293.752893: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8293.757387: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8293.761705: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8293.768565: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8293.773111: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8293.784513: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8293.794486: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8293.804558: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8293.816096: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [000] ....  8293.820338: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [002] ....  8293.822648: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [002] ....  8293.824862: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8293.827337: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8293.831982: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8293.850276: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974336
       flush-8:0-4272  [003] ....  8293.850291: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974336
              dd-4267  [001] ....  8293.850292: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974336
       flush-8:0-4272  [003] ....  8293.854749: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974336
       flush-8:0-4272  [003] ....  8293.854756: writeback_pages_written: 256
              dd-4267  [003] ....  8293.949419: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [001] ....  8293.950099: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8293.954661: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8293.957135: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8293.959495: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974592
       flush-8:0-4272  [001] ....  8293.959505: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974592
              dd-4267  [003] ....  8293.959506: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974592
       flush-8:0-4272  [001] ....  8293.964429: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=974592
              dd-4267  [003] ....  8293.964831: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=976640
              dd-4267  [003] ....  8293.966420: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=978688
       flush-8:0-4272  [001] ....  8293.967125: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=976640
              dd-4267  [003] ....  8293.967957: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=980736
       flush-8:0-4272  [001] ....  8293.974557: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=978688
              dd-4267  [000] ....  8293.976671: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=982784
              dd-4267  [000] ....  8293.979998: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=984832
              dd-4267  [000] ....  8293.980544: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [001] ....  8293.981418: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=980736
       flush-8:0-4272  [001] ....  8293.987940: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=982784
              dd-4267  [000] ....  8293.988730: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [001] ....  8293.994540: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=984832
       flush-8:0-4272  [001] ....  8293.996489: writeback_pages_written: 10496
              dd-4267  [001] ....  8294.029115: writeback_congestion_wait: usec_timeout=100000 usec_delayed=27000
              dd-4267  [001] ....  8294.064816: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985088
       flush-8:0-4272  [003] ....  8294.064833: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985088
              dd-4267  [001] ....  8294.064834: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985088
       flush-8:0-4272  [003] ....  8294.067992: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985088
       flush-8:0-4272  [003] ....  8294.068000: writeback_pages_written: 256
              dd-4267  [001] ....  8294.068875: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.078863: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.088870: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8294.098835: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.108811: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.118806: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.122874: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985344
       flush-8:0-4272  [003] ....  8294.122890: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985344
              dd-4267  [001] ....  8294.122895: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985344
              dd-4267  [001] ....  8294.124491: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=987392
              dd-4267  [001] ....  8294.126057: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=989440
       flush-8:0-4272  [003] .N..  8294.126285: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=985344
              dd-4267  [001] ....  8294.127632: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=991488
       flush-8:0-4272  [003] ....  8294.129080: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=987392
       flush-8:0-4272  [003] ....  8294.134718: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=989440
       flush-8:0-4272  [003] ....  8294.139698: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1792 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=991488
       flush-8:0-4272  [003] ....  8294.143930: writeback_pages_written: 7936
              dd-4267  [000] ....  8294.154721: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993280
       flush-8:0-4272  [003] ....  8294.154740: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993280
              dd-4267  [000] ....  8294.154741: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993280
       flush-8:0-4272  [003] ....  8294.156714: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993280
       flush-8:0-4272  [003] ....  8294.156722: writeback_pages_written: 256
              dd-4267  [002] ....  8294.254308: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [002] ....  8294.351041: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993536
       flush-8:0-4272  [003] ....  8294.351061: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993536
              dd-4267  [002] ....  8294.351067: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993536
       flush-8:0-4272  [003] ....  8294.355385: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993536
       flush-8:0-4272  [003] ....  8294.355392: writeback_pages_written: 256
              dd-4267  [003] ....  8294.429885: writeback_congestion_wait: usec_timeout=100000 usec_delayed=74000
              dd-4267  [001] ....  8294.432726: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8294.435228: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8294.449908: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8294.455841: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8294.461793: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.466140: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] .N..  8294.472105: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.476408: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8294.482332: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.486666: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.492631: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.496951: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8294.502897: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.507247: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8294.513196: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.517488: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8294.523451: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.527785: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.533730: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.538058: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8294.544007: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8294.548348: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8294.613136: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8294.617232: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.622950: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8294.627046: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8294.632738: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8294.646693: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [001] ....  8294.656647: writeback_congestion_wait: usec_timeout=100000 usec_delayed=10000
              dd-4267  [001] ....  8294.662184: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.676087: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8294.680177: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.685900: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8294.690000: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8294.695720: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8294.699792: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.705508: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8294.709607: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.715336: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.719415: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.725125: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [003] ....  8294.729222: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.734952: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.739050: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.744735: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8294.748838: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.754564: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8294.758690: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8294.768628: writeback_congestion_wait: usec_timeout=100000 usec_delayed=10000
              dd-4267  [001] ....  8294.827256: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [000] ....  8294.829463: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [000] ....  8294.831574: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8294.833749: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [002] ....  8294.835917: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8294.849642: writeback_congestion_wait: usec_timeout=100000 usec_delayed=13000
              dd-4267  [001] ....  8294.851883: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8294.926921: writeback_congestion_wait: usec_timeout=100000 usec_delayed=71000
              dd-4267  [003] ....  8294.929117: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8294.931419: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
              dd-4267  [003] ....  8294.936759: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993792
       flush-8:0-4272  [001] ....  8294.936771: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993792
              dd-4267  [003] ....  8294.936776: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993792
              dd-4267  [003] ....  8294.938346: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=995840
              dd-4267  [003] ....  8294.939895: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=997888
              dd-4267  [003] ....  8294.941461: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=999936
       flush-8:0-4272  [001] ....  8294.942432: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=993792
              dd-4267  [003] ....  8294.943044: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1001984
              dd-4267  [003] ....  8294.944594: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1004032
       flush-8:0-4272  [001] ....  8294.945567: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=995840
              dd-4267  [003] ....  8294.948509: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1006080
              dd-4267  [000] ....  8294.950142: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1008128
       flush-8:0-4272  [000] ....  8294.954509: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=997888
       flush-8:0-4272  [000] ....  8295.060073: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=999936
       flush-8:0-4272  [001] ....  8295.070258: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1001984
       flush-8:0-4272  [001] ....  8295.079359: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1004032
       flush-8:0-4272  [001] ....  8295.086159: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1006080
       flush-8:0-4272  [001] ....  8295.092211: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1008128
       flush-8:0-4272  [001] ....  8295.095943: writeback_pages_written: 15360
              dd-4267  [002] ....  8295.149629: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1009152
       flush-8:0-4272  [001] ....  8295.149649: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1009152
              dd-4267  [002] ....  8295.149661: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1009152
       flush-8:0-4272  [001] ....  8295.154294: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=768 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1009152
              dd-4267  [002] ....  8295.154608: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1009920
       flush-8:0-4272  [001] ....  8295.155299: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1024 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1009920
              dd-4267  [002] ....  8295.155309: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1010688
              dd-4267  [002] ....  8295.156976: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1012736
              dd-4267  [002] ....  8295.158592: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1014784
       flush-8:0-4272  [001] ....  8295.159917: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1010688
       flush-8:0-4272  [001] ....  8295.163902: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1012736
              dd-4267  [002] ....  8295.164768: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1016832
       flush-8:0-4272  [001] ....  8295.170302: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1014784
       flush-8:0-4272  [001] ....  8295.175152: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=1536 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1016832
       flush-8:0-4272  [001] ....  8295.178552: writeback_pages_written: 9216
              dd-4267  [000] ....  8295.265787: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [003] ....  8295.368201: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8295.377759: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.381826: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8295.387549: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.391664: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.397376: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8295.401466: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [003] ....  8295.407182: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.411274: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.417013: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8295.421116: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [003] ....  8295.426809: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.430867: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.436645: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8295.446602: writeback_congestion_wait: usec_timeout=100000 usec_delayed=7000
              dd-4267  [001] ....  8295.450132: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1018368
       flush-8:0-4272  [003] ....  8295.450147: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1018368
              dd-4267  [001] ....  8295.450152: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1018368
              dd-4267  [001] ....  8295.454012: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1020416
       flush-8:0-4272  [003] ....  8295.454533: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1018368
              dd-4267  [001] ....  8295.455564: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1022464
       flush-8:0-4272  [003] ....  8295.457413: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1020416
              dd-4267  [000] ....  8295.459310: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1024512
              dd-4267  [001] ....  8295.460273: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
       flush-8:0-4272  [003] ....  8295.463336: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1022464
       flush-8:0-4272  [003] ....  8295.468614: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1024512
       flush-8:0-4272  [003] ....  8295.470473: writeback_pages_written: 6400
              dd-4267  [003] ....  8295.561536: writeback_congestion_wait: usec_timeout=100000 usec_delayed=100000
              dd-4267  [000] ....  8295.619605: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1024768
       flush-8:0-4272  [003] ....  8295.619628: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1024768
              dd-4267  [000] ....  8295.619629: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1024768
       flush-8:0-4272  [003] ....  8295.624325: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1024768
       flush-8:0-4272  [003] ....  8295.624334: writeback_pages_written: 256
              dd-4267  [001] ....  8295.626436: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.630738: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.636693: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8295.641010: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.646977: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8295.651282: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.657228: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8295.661569: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.667523: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [001] ....  8295.671798: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.677742: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8295.682120: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.688077: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.698626: writeback_congestion_wait: usec_timeout=100000 usec_delayed=9000
              dd-4267  [001] ....  8295.708811: writeback_congestion_wait: usec_timeout=100000 usec_delayed=5000
              dd-4267  [003] ....  8295.719075: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [001] ....  8295.724796: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.729170: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.735113: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8295.739452: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8295.741771: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025024
       flush-8:0-4272  [001] ....  8295.741782: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025024
              dd-4267  [003] ....  8295.741783: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025024
              dd-4267  [003] ....  8295.745338: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
       flush-8:0-4272  [001] ....  8295.745929: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025024
       flush-8:0-4272  [001] ....  8295.745935: writeback_pages_written: 256
              dd-4267  [001] ....  8295.749693: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.755677: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8295.760008: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.765967: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.770295: writeback_congestion_wait: usec_timeout=100000 usec_delayed=1000
              dd-4267  [001] ....  8295.776226: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [003] ....  8295.780561: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.786491: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8295.790761: writeback_congestion_wait: usec_timeout=100000 usec_delayed=3000
              dd-4267  [001] ....  8295.796727: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [003] ....  8295.801103: writeback_congestion_wait: usec_timeout=100000 usec_delayed=2000
              dd-4267  [001] ....  8295.807061: writeback_congestion_wait: usec_timeout=100000 usec_delayed=4000
              dd-4267  [001] ....  8295.808918: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025280
       flush-8:0-4272  [003] ....  8295.808931: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025280
              dd-4267  [001] ....  8295.808942: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025280
              dd-4267  [001] ....  8295.810446: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1027328
              dd-4267  [001] ....  8295.811934: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1029376
       flush-8:0-4272  [003] ....  8295.813114: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1025280
              dd-4267  [001] ....  8295.815817: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1031424
       flush-8:0-4272  [003] ....  8295.816182: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1027328
              dd-4267  [000] ....  8295.821315: writeback_queue: bdi 8:0: sb_dev 0:0 nr_pages=256 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1033472
       flush-8:0-4272  [003] ....  8295.822702: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1029376
              dd-4267  [000] ....  8295.827544: writeback_congestion_wait: usec_timeout=100000 usec_delayed=6000
              dd-4267  [000] ....  8295.827734: writeback_congestion_wait: usec_timeout=100000 usec_delayed=0
       flush-8:0-4272  [003] ....  8295.828932: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=2048 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1031424
              dd-4267  [001] ....  8295.864365: writeback_congestion_wait: usec_timeout=100000 usec_delayed=33000
       flush-8:0-4272  [001] ....  8296.051145: writeback_exec: bdi 8:0: sb_dev 0:0 nr_pages=512 sync_mode=0 kupdate=0 range_cyclic=0 background=0 reason=pageout ino=13 offset=1033472
       flush-8:0-4272  [001] ....  8296.054689: writeback_pages_written: 8704
       flush-8:0-4272  [003] ....  8301.051487: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=21838 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8301.051491: writeback_queue_io: bdi 8:0: older=4302942761 age=30000 enqueue=1 reason=periodic
       flush-8:0-4272  [003] ....  8301.051498: writeback_single_inode: bdi 8:0: ino=13 state= dirtied_when=4302938315 age=39 index=0 to_write=1024 wrote=0
       flush-8:0-4272  [003] ....  8301.051501: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=21838 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8301.051502: writeback_start: bdi 8:0: sb_dev 0:0 nr_pages=21838 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8301.051502: writeback_queue_io: bdi 8:0: older=4302942761 age=30000 enqueue=0 reason=periodic
       flush-8:0-4272  [003] ....  8301.051502: writeback_written: bdi 8:0: sb_dev 0:0 nr_pages=21838 sync_mode=0 kupdate=1 range_cyclic=1 background=0 reason=periodic ino=0 offset=0
       flush-8:0-4272  [003] ....  8301.051505: writeback_pages_written: 0

[-- Attachment #2: balance_dirty_pages-task-bw-300.png --]
[-- Type: image/png, Size: 41820 bytes --]

[-- Attachment #3: balance_dirty_pages-task-bw.png --]
[-- Type: image/png, Size: 34173 bytes --]

  reply	other threads:[~2012-02-12  6:55 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-02-08  7:55 memcg writeback (was Re: [Lsf-pc] [LSF/MM TOPIC] memcg topics.) Greg Thelen
2012-02-08  9:31 ` Wu Fengguang
2012-02-08 20:54   ` Ying Han
2012-02-09 13:50     ` Wu Fengguang
2012-02-13 18:40       ` Ying Han
2012-02-10  5:51   ` Greg Thelen
2012-02-10  5:52     ` Greg Thelen
2012-02-10  9:20       ` Wu Fengguang
2012-02-10 11:47     ` Wu Fengguang
2012-02-11 12:44       ` reclaim the LRU lists full of dirty/writeback pages Wu Fengguang
2012-02-11 14:55         ` Rik van Riel
2012-02-12  3:10           ` Wu Fengguang
2012-02-12  6:45             ` Wu Fengguang [this message]
2012-02-13 15:43             ` Jan Kara
2012-02-14 10:03               ` Wu Fengguang
2012-02-14 13:29                 ` Jan Kara
2012-02-16  4:00                   ` Wu Fengguang
2012-02-16 12:44                     ` Jan Kara
2012-02-16 13:32                       ` Wu Fengguang
2012-02-16 14:06                         ` Wu Fengguang
2012-02-17 16:41                     ` Wu Fengguang
2012-02-20 14:00                       ` Jan Kara
2012-02-14 10:19         ` Mel Gorman
2012-02-14 13:18           ` Wu Fengguang
2012-02-14 13:35             ` Wu Fengguang
2012-02-14 15:51             ` Mel Gorman
2012-02-16  9:50               ` Wu Fengguang
2012-02-16 17:31                 ` Mel Gorman
2012-02-27 14:24                   ` Fengguang Wu
2012-02-16  0:00             ` KAMEZAWA Hiroyuki
2012-02-16  3:04               ` Wu Fengguang
2012-02-16  3:52                 ` KAMEZAWA Hiroyuki
2012-02-16  4:05                   ` Wu Fengguang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20120212064516.GA20163@localhost \
    --to=fengguang.wu@intel.com \
    --cc=bsingharora@gmail.com \
    --cc=gthelen@google.com \
    --cc=hannes@cmpxchg.org \
    --cc=hughd@google.com \
    --cc=jack@suse.cz \
    --cc=kamezawa.hiroyu@jp.fujitsu.com \
    --cc=linux-mm@kvack.org \
    --cc=mgorman@suse.de \
    --cc=mhocko@suse.cz \
    --cc=minchan.kim@gmail.com \
    --cc=riel@redhat.com \
    --cc=yinghan@google.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.