* [BUG] generic/475 recovery failure(s)
@ 2021-06-10 15:14 Brian Foster
2021-06-11 19:02 ` Brian Foster
0 siblings, 1 reply; 12+ messages in thread
From: Brian Foster @ 2021-06-10 15:14 UTC (permalink / raw)
To: linux-xfs
Hi all,
I'm seeing what looks like at least one new generic/475 failure on
current for-next. (I've seen one related to an attr buffer that seems to
be older and harder to reproduce.). The test devices are a couple ~15GB
lvm devices formatted with mkfs defaults. I'm still trying to establish
reproducibility, but so far a failure seems fairly reliable within ~30
iterations.
The first [1] looks like log recovery failure processing an EFI. The
second variant [2] looks like it passes log recovery, but then fails the
mount in the COW extent cleanup stage due to a refcountbt problem. I've
also seen one that looks like the same free space corruption error as
[1], but triggered via the COW recovery codepath in [2], so these could
very well be related. A snippet of the dmesg output for each failed
mount is appended below.
Brian
[1]
...
XFS (dm-5): Mounting V5 Filesystem
XFS (dm-5): Starting recovery (logdev: internal)
XFS (dm-5): Internal error ltbno + ltlen > bno at line 1940 of file fs/xfs/libxfs/xfs_alloc.c. Caller xfs_free_ag_extent+0x586/0xa00 [xfs]
CPU: 75 PID: 207978 Comm: mount Tainted: G W I 5.13.0-rc4 #64
Hardware name: Dell Inc. PowerEdge R740/01KPX8, BIOS 1.6.11 11/20/2018
Call Trace:
dump_stack+0x7f/0xa1
xfs_corruption_error+0x81/0x90 [xfs]
? xfs_free_ag_extent+0x586/0xa00 [xfs]
xfs_free_ag_extent+0x5ba/0xa00 [xfs]
? xfs_free_ag_extent+0x586/0xa00 [xfs]
__xfs_free_extent+0xed/0x210 [xfs]
xfs_trans_free_extent+0x55/0x180 [xfs]
xfs_efi_item_recover+0x11b/0x170 [xfs]
xlog_recover_process_intents+0xc5/0x3c0 [xfs]
? xfs_iget+0x7c0/0x10b0 [xfs]
xlog_recover_finish+0x19/0xb0 [xfs]
xfs_log_mount_finish+0x55/0x150 [xfs]
xfs_mountfs+0x552/0x960 [xfs]
xfs_fs_fill_super+0x3af/0x7d0 [xfs]
? xfs_fs_put_super+0xa0/0xa0 [xfs]
get_tree_bdev+0x17f/0x280
vfs_get_tree+0x28/0xc0
? capable+0x3a/0x60
path_mount+0x433/0xb60
__x64_sys_mount+0xe3/0x120
do_syscall_64+0x40/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f457b46e19e
Code: 48 8b 0d dd 1c 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d aa 1c 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffec1895aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffec1895c20 RCX: 00007f457b46e19e
RDX: 0000562eaa1bb8b0 RSI: 0000562eaa1bb610 RDI: 0000562eaa1ba4e0
RBP: 0000562eaa1b95c0 R08: 0000000000000000 R09: 00007f457b530a60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000562eaa1ba4e0 R14: 0000562eaa1bb8b0 R15: 0000562eaa1b95c0
XFS (dm-5): Corruption detected. Unmount and run xfs_repair
XFS (dm-5): Internal error xfs_trans_cancel at line 955 of file fs/xfs/xfs_trans.c. Caller xfs_efi_item_recover+0x12d/0x170 [xfs]
CPU: 75 PID: 207978 Comm: mount Tainted: G W I 5.13.0-rc4 #64
Hardware name: Dell Inc. PowerEdge R740/01KPX8, BIOS 1.6.11 11/20/2018
Call Trace:
dump_stack+0x7f/0xa1
xfs_trans_cancel+0x1a1/0x1f0 [xfs]
xfs_efi_item_recover+0x12d/0x170 [xfs]
xlog_recover_process_intents+0xc5/0x3c0 [xfs]
? xfs_iget+0x7c0/0x10b0 [xfs]
xlog_recover_finish+0x19/0xb0 [xfs]
xfs_log_mount_finish+0x55/0x150 [xfs]
xfs_mountfs+0x552/0x960 [xfs]
xfs_fs_fill_super+0x3af/0x7d0 [xfs]
? xfs_fs_put_super+0xa0/0xa0 [xfs]
get_tree_bdev+0x17f/0x280
vfs_get_tree+0x28/0xc0
? capable+0x3a/0x60
path_mount+0x433/0xb60
__x64_sys_mount+0xe3/0x120
do_syscall_64+0x40/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f457b46e19e
Code: 48 8b 0d dd 1c 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d aa 1c 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffec1895aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffec1895c20 RCX: 00007f457b46e19e
RDX: 0000562eaa1bb8b0 RSI: 0000562eaa1bb610 RDI: 0000562eaa1ba4e0
RBP: 0000562eaa1b95c0 R08: 0000000000000000 R09: 00007f457b530a60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000562eaa1ba4e0 R14: 0000562eaa1bb8b0 R15: 0000562eaa1b95c0
XFS (dm-5): xfs_do_force_shutdown(0x8) called from line 956 of file fs/xfs/xfs_trans.c. Return address = ffffffffc0a9aa4a
XFS (dm-5): Corruption of in-memory data detected. Shutting down filesystem
XFS (dm-5): Please unmount the filesystem and rectify the problem(s)
XFS (dm-5): Failed to recover intents
XFS (dm-5): log mount finish failed
[2]
...
XFS (dm-5): Mounting V5 Filesystem
XFS (dm-5): Starting recovery (logdev: internal)
XFS (dm-5): Ending recovery (logdev: internal)
XFS: Assertion failed: 0, file: fs/xfs/libxfs/xfs_btree.c, line: 1588
------------[ cut here ]------------
WARNING: CPU: 73 PID: 189091 at fs/xfs/xfs_message.c:112 assfail+0x25/0x28 [xfs]
Modules linked in: rfkill dm_service_time dm_multipath scsi_dh_rdac scsi_dh_emc scsi_dh_alua rpcrdma sunrpc rdma_ucm ib_srpt ib_isert iscsi_target_mod target_core_mod ib_iser libiscsi scsi_transport_iscsi rdma_cm ib_umad iw_cm ib_ipoib intel_rapl_msr ib_cm intel_rapl_common isst_if_common mlx5_ib ib_uverbs skx_edac nfit ib_core libnvdimm x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm mlx5_core ipmi_ssif iTCO_wdt irqbypass intel_pmc_bxt rapl iTCO_vendor_support intel_cstate intel_uncore psample mei_me tg3 acpi_ipmi mlxfw wmi_bmof i2c_i801 pcspkr pci_hyperv_intf mei lpc_ich intel_pch_thermal i2c_smbus ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter fuse zram ip_tables xfs lpfc mgag200 drm_kms_helper nvmet_fc nvmet cec nvme_fc crct10dif_pclmul drm nvme_fabrics crc32_pclmul crc32c_intel nvme_core ghash_clmulni_intel scsi_transport_fc megaraid_sas i2c_algo_bit wmi
CPU: 73 PID: 189091 Comm: mount Tainted: G W I 5.13.0-rc4 #64
Hardware name: Dell Inc. PowerEdge R740/01KPX8, BIOS 1.6.11 11/20/2018
RIP: 0010:assfail+0x25/0x28 [xfs]
Code: ff ff 0f 0b c3 0f 1f 44 00 00 41 89 c8 48 89 d1 48 89 f2 48 c7 c6 18 c9 af c0 e8 cf fa ff ff 80 3d 01 cc 0a 00 00 74 02 0f 0b <0f> 0b c3 48 8d 45 10 48 89 e2 4c 89 e6 48 89 1c 24 48 89 44 24 18
RSP: 0018:ffffb00069057b78 EFLAGS: 00010246
RAX: 00000000ffffffea RBX: ffff9186c6b55880 RCX: 0000000000000000
RDX: 00000000ffffffc0 RSI: 0000000000000000 RDI: ffffffffc0aedee4
RBP: ffffb00069057c98 R08: 0000000000000000 R09: 000000000000000a
R10: 000000000000000a R11: f000000000000000 R12: 0000000000000000
R13: 00000000ffffff8b R14: ffffb00069057c70 R15: 0000000000000001
FS: 00007ff3505eec40(0000) GS:ffff91b5bfd00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff350254000 CR3: 00000030f045c001 CR4: 00000000007706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
xfs_btree_increment+0x27a/0x3d0 [xfs]
? xfs_refcount_still_have_space+0xb0/0xb0 [xfs]
? xfs_refcount_still_have_space+0xb0/0xb0 [xfs]
xfs_btree_simple_query_range+0x133/0x1d0 [xfs]
? xfs_trans_read_buf_map+0x23f/0x5b0 [xfs]
? xfs_refcount_still_have_space+0xb0/0xb0 [xfs]
xfs_btree_query_range+0xf6/0x110 [xfs]
? kmem_cache_alloc+0x247/0x2d0
? xfs_refcountbt_init_common+0x2b/0xa0 [xfs]
xfs_refcount_recover_cow_leftovers+0x105/0x390 [xfs]
? trace_hardirqs_on+0x1b/0xd0
? lock_acquire+0x15d/0x380
xfs_reflink_recover_cow+0x43/0xa0 [xfs]
xfs_mountfs+0x5e5/0x960 [xfs]
xfs_fs_fill_super+0x3af/0x7d0 [xfs]
? xfs_fs_put_super+0xa0/0xa0 [xfs]
get_tree_bdev+0x17f/0x280
vfs_get_tree+0x28/0xc0
? capable+0x3a/0x60
path_mount+0x433/0xb60
__x64_sys_mount+0xe3/0x120
do_syscall_64+0x40/0x80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7ff35082119e
Code: 48 8b 0d dd 1c 0c 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d aa 1c 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007ffebc43ea98 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007ffebc43ec10 RCX: 00007ff35082119e
RDX: 000055ba504c98b0 RSI: 000055ba504c9610 RDI: 000055ba504c84e0
RBP: 000055ba504c75c0 R08: 0000000000000000 R09: 00007ff3508e3a60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000055ba504c84e0 R14: 000055ba504c98b0 R15: 000055ba504c75c0
irq event stamp: 0
hardirqs last enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<ffffffff9e0da3f4>] copy_process+0x754/0x1d00
softirqs last enabled at (0): [<ffffffff9e0da3f4>] copy_process+0x754/0x1d00
softirqs last disabled at (0): [<0000000000000000>] 0x0
---[ end trace 3975c06460f0a3d7 ]---
XFS (dm-5): Error -117 recovering leftover CoW allocations.
XFS (dm-5): xfs_do_force_shutdown(0x8) called from line 917 of file fs/xfs/xfs_mount.c. Return address = ffffffffc0a904e5
XFS (dm-5): Corruption of in-memory data detected. Shutting down filesystem
XFS (dm-5): Please unmount the filesystem and rectify the problem(s)
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-10 15:14 [BUG] generic/475 recovery failure(s) Brian Foster
@ 2021-06-11 19:02 ` Brian Foster
2021-06-11 22:33 ` Dave Chinner
0 siblings, 1 reply; 12+ messages in thread
From: Brian Foster @ 2021-06-11 19:02 UTC (permalink / raw)
To: linux-xfs
On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> Hi all,
>
> I'm seeing what looks like at least one new generic/475 failure on
> current for-next. (I've seen one related to an attr buffer that seems to
> be older and harder to reproduce.). The test devices are a couple ~15GB
> lvm devices formatted with mkfs defaults. I'm still trying to establish
> reproducibility, but so far a failure seems fairly reliable within ~30
> iterations.
>
> The first [1] looks like log recovery failure processing an EFI. The
> second variant [2] looks like it passes log recovery, but then fails the
> mount in the COW extent cleanup stage due to a refcountbt problem. I've
> also seen one that looks like the same free space corruption error as
> [1], but triggered via the COW recovery codepath in [2], so these could
> very well be related. A snippet of the dmesg output for each failed
> mount is appended below.
>
...
A couple updates..
First (as noted on irc), the generic/475 failure is not new as I was
able to produce it on vanilla 5.13.0-rc4. I'm not quite sure how far
back that one goes, but Dave noted he's seen it on occasion for some
time.
The generic/019 failure I'm seeing does appear to be new as I cannot
reproduce on 5.13.0-rc4. This failure looks more like silent fs
corruption. I.e., the test or log recovery doesn't explicitly fail, but
the post-test xfs_repair check detects corruption. Example xfs_repair
output is appended below (note that 'xfs_repair -n' actually crashes,
while destructive repair seems to work). Since this reproduces fairly
reliably on for-next, I bisected it (while also navigating an unmount
hang that I don't otherwise have data on) down to facd77e4e38b ("xfs:
CIL work is serialised, not pipelined"). From a quick glance at that I'm
not quite sure what the problem is there, just that it doesn't occur
prior to that particular commit.
Brian
--- 8< ---
019.full:
*** xfs_repair -n output ***
Phase 1 - find and verify superblock...
Phase 2 - using internal log
- zero log...
- scan filesystem freespace and inode maps...
- found root inode chunk
Phase 3 - for each AG...
- scan (but don't clear) agi unlinked lists...
- process known inodes and perform inode discovery...
- agno = 0
bad btree key (is 2222043, should be 2222328) in inode 2201
data fork, btree block 3411717
bad nblocks 54669 for inode 2201, would reset to 54667
bad nextents 54402 for inode 2201, would reset to 54400
out-of-order bmap key (file offset) in inode 2202, data fork, fsbno 1056544
bad data fork in inode 2202
would have cleared inode 2202
- agno = 1
- agno = 2
- agno = 3
- process newly discovered inodes...
Phase 4 - check for duplicate blocks...
- setting up duplicate extent list...
- check for inodes claiming duplicate blocks...
- agno = 0
- agno = 2
- agno = 3
entry "stress_dio_aio_activity.2.0" in shortform directory 128 references free inode 2202
- agno = 1
would have junked entry "stress_dio_aio_activity.2.0" in directory inode 128
bad btree key (is 2222043, should be 2222328) in inode 2201
data fork, btree block 3411717
bad nblocks 54669 for inode 2201, would reset to 54667
bad nextents 54402 for inode 2201, would reset to 54400
out-of-order bmap key (file offset) in inode 2202, data fork, fsbno 1056544
would have cleared inode 2202
xfs_repair: rmap.c:1267: fix_inode_reflink_flags: Assertion `(irec->ino_is_rl & irec->ir_free) == 0' failed.
Incorrect reference count: saw (3/3386) len 1 nlinks 29; should be (3/4370) len 1 nlinks 2
*** end xfs_repair output
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-11 19:02 ` Brian Foster
@ 2021-06-11 22:33 ` Dave Chinner
[not found] ` <YMdMehWQoBJC9l0W@bfoster>
2021-06-16 7:05 ` Dave Chinner
0 siblings, 2 replies; 12+ messages in thread
From: Dave Chinner @ 2021-06-11 22:33 UTC (permalink / raw)
To: Brian Foster; +Cc: linux-xfs
On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> > Hi all,
> >
> > I'm seeing what looks like at least one new generic/475 failure on
> > current for-next. (I've seen one related to an attr buffer that seems to
> > be older and harder to reproduce.). The test devices are a couple ~15GB
> > lvm devices formatted with mkfs defaults. I'm still trying to establish
> > reproducibility, but so far a failure seems fairly reliable within ~30
> > iterations.
> >
> > The first [1] looks like log recovery failure processing an EFI. The
> > second variant [2] looks like it passes log recovery, but then fails the
> > mount in the COW extent cleanup stage due to a refcountbt problem. I've
> > also seen one that looks like the same free space corruption error as
> > [1], but triggered via the COW recovery codepath in [2], so these could
> > very well be related. A snippet of the dmesg output for each failed
> > mount is appended below.
> >
> ...
>
> A couple updates..
>
> First (as noted on irc), the generic/475 failure is not new as I was
> able to produce it on vanilla 5.13.0-rc4. I'm not quite sure how far
> back that one goes, but Dave noted he's seen it on occasion for some
> time.
>
> The generic/019 failure I'm seeing does appear to be new as I cannot
> reproduce on 5.13.0-rc4. This failure looks more like silent fs
> corruption. I.e., the test or log recovery doesn't explicitly fail, but
> the post-test xfs_repair check detects corruption. Example xfs_repair
> output is appended below (note that 'xfs_repair -n' actually crashes,
> while destructive repair seems to work). Since this reproduces fairly
> reliably on for-next, I bisected it (while also navigating an unmount
> hang that I don't otherwise have data on) down to facd77e4e38b ("xfs:
> CIL work is serialised, not pipelined"). From a quick glance at that I'm
> not quite sure what the problem is there, just that it doesn't occur
> prior to that particular commit.
I suspect that there's an underlying bug in the overlapping CIL
commit record sequencing. This commit will be the first time we are
actually getting overlapping checkpoints that need ordering via the
commit record writes. Hence I suspect what is being seen here is a
subtle ordering bug that has been in that code since it was first
introduced but never exercised until now..
I haven't had any success in reproducing this yet, I'll keep trying
to see if I can get it to trigger so I can look at it in more
detail...
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
[not found] ` <YMdMehWQoBJC9l0W@bfoster>
@ 2021-06-14 12:56 ` Brian Foster
2021-06-14 23:41 ` Dave Chinner
0 siblings, 1 reply; 12+ messages in thread
From: Brian Foster @ 2021-06-14 12:56 UTC (permalink / raw)
To: Dave Chinner; +Cc: linux-xfs
[-- Attachment #1: Type: text/plain, Size: 1105 bytes --]
On Mon, Jun 14, 2021 at 08:32:58AM -0400, Brian Foster wrote:
> On Sat, Jun 12, 2021 at 08:33:32AM +1000, Dave Chinner wrote:
> > On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> > > On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
...
>
> I've also now been hitting a deadlock issue more frequently with the
> same test. I'll provide more on that in a separate mail..
>
So I originally thought this one was shutdown related (there still may
be a shutdown hang, I was quickly working around other issues to give
priority to the corruption issue), but what I'm seeing actually looks
like a log reservation deadlock. More specifically, it looks like a
stuck CIL push and everything else backed up behind it.
I suspect this is related to the same patch (it does show 4 concurrent
CIL push tasks, fwiw), but I'm not 100% certain atm. I'll repeat some
tests on the prior commit to try and confirm or rule that out. In the
meantime, dmesg with blocked task output is attached.
Brian
> Brian
>
> > Cheers,
> >
> > Dave.
> > --
> > Dave Chinner
> > david@fromorbit.com
> >
[-- Attachment #2: 019-deadlock.dmesg --]
[-- Type: text/plain, Size: 128699 bytes --]
[49989.354537] sysrq: Show Blocked State
[49989.362009] task:kworker/u161:4 state:D stack: 0 pid:105326 ppid: 2 flags:0x00004000
[49989.370464] Workqueue: xfs-cil/dm-5 xlog_cil_push_work [xfs]
[49989.376278] Call Trace:
[49989.378744] __schedule+0x38b/0xc50
[49989.382250] ? lock_release+0x1cd/0x2a0
[49989.386097] schedule+0x5b/0xc0
[49989.389251] xlog_wait_on_iclog+0xeb/0x100 [xfs]
[49989.393932] ? wake_up_q+0xa0/0xa0
[49989.397353] xlog_cil_push_work+0x5cb/0x630 [xfs]
[49989.402123] ? sched_clock_cpu+0xc/0xb0
[49989.405971] ? lock_acquire+0x15d/0x380
[49989.409823] ? lock_release+0x1cd/0x2a0
[49989.413662] ? lock_acquire+0x15d/0x380
[49989.417502] ? lock_release+0x1cd/0x2a0
[49989.421353] ? finish_task_switch.isra.0+0xa0/0x2c0
[49989.426238] process_one_work+0x26e/0x560
[49989.430271] worker_thread+0x52/0x3b0
[49989.433942] ? process_one_work+0x560/0x560
[49989.438138] kthread+0x12c/0x150
[49989.441380] ? __kthread_bind_mask+0x60/0x60
[49989.445658] ret_from_fork+0x22/0x30
[49989.449302] task:kworker/3:0 state:D stack: 0 pid:173625 ppid: 2 flags:0x00004000
[49989.457739] Workqueue: dio/dm-5 iomap_dio_complete_work
[49989.462975] Call Trace:
[49989.465428] __schedule+0x38b/0xc50
[49989.468930] schedule+0x5b/0xc0
[49989.472082] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49989.476951] xlog_grant_head_check+0xd6/0x130 [xfs]
[49989.481892] xfs_log_reserve+0xf6/0x310 [xfs]
[49989.486315] xfs_trans_reserve+0x17f/0x250 [xfs]
[49989.490991] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49989.495517] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49989.500456] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49989.505829] ? lock_release+0x1cd/0x2a0
[49989.509668] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49989.514600] iomap_dio_complete+0x45/0x130
[49989.518707] ? aio_poll_complete_work+0x1b0/0x1b0
[49989.523422] iomap_dio_complete_work+0x17/0x30
[49989.527876] process_one_work+0x26e/0x560
[49989.531890] worker_thread+0x52/0x3b0
[49989.535570] ? process_one_work+0x560/0x560
[49989.539757] kthread+0x12c/0x150
[49989.542989] ? __kthread_bind_mask+0x60/0x60
[49989.547264] ret_from_fork+0x22/0x30
[49989.550861] task:kworker/3:7 state:D stack: 0 pid:173759 ppid: 2 flags:0x00004000
[49989.559301] Workqueue: dio/dm-5 iomap_dio_complete_work
[49989.564536] Call Trace:
[49989.566987] __schedule+0x38b/0xc50
[49989.570479] schedule+0x5b/0xc0
[49989.573626] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49989.578479] xlog_grant_head_check+0xd6/0x130 [xfs]
[49989.583419] xfs_log_reserve+0xf6/0x310 [xfs]
[49989.587837] xfs_trans_reserve+0x17f/0x250 [xfs]
[49989.592518] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49989.597024] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49989.601966] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49989.607337] ? lock_release+0x1cd/0x2a0
[49989.611177] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49989.616112] iomap_dio_complete+0x45/0x130
[49989.620214] ? aio_poll_complete_work+0x1b0/0x1b0
[49989.624921] iomap_dio_complete_work+0x17/0x30
[49989.629368] process_one_work+0x26e/0x560
[49989.633382] worker_thread+0x52/0x3b0
[49989.637055] ? process_one_work+0x560/0x560
[49989.641240] kthread+0x12c/0x150
[49989.644474] ? __kthread_bind_mask+0x60/0x60
[49989.648754] ret_from_fork+0x22/0x30
[49989.652338] task:kworker/3:8 state:D stack: 0 pid:173760 ppid: 2 flags:0x00004000
[49989.660775] Workqueue: dio/dm-5 iomap_dio_complete_work
[49989.666008] Call Trace:
[49989.668463] __schedule+0x38b/0xc50
[49989.671963] schedule+0x5b/0xc0
[49989.675107] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49989.679964] xlog_grant_head_check+0xd6/0x130 [xfs]
[49989.684919] xfs_log_reserve+0xf6/0x310 [xfs]
[49989.689338] xfs_trans_reserve+0x17f/0x250 [xfs]
[49989.694018] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49989.698526] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49989.703464] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49989.708830] ? lock_release+0x1cd/0x2a0
[49989.712679] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49989.717610] iomap_dio_complete+0x45/0x130
[49989.721716] ? aio_poll_complete_work+0x1b0/0x1b0
[49989.726431] iomap_dio_complete_work+0x17/0x30
[49989.730885] process_one_work+0x26e/0x560
[49989.734898] worker_thread+0x52/0x3b0
[49989.738564] ? process_one_work+0x560/0x560
[49989.742749] kthread+0x12c/0x150
[49989.745983] ? __kthread_bind_mask+0x60/0x60
[49989.750264] ret_from_fork+0x22/0x30
[49989.753858] task:kworker/5:32 state:D stack: 0 pid:173784 ppid: 2 flags:0x00004000
[49989.762293] Workqueue: dio/dm-5 iomap_dio_complete_work
[49989.767527] Call Trace:
[49989.769981] __schedule+0x38b/0xc50
[49989.773481] schedule+0x5b/0xc0
[49989.776634] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49989.781488] xlog_grant_head_check+0xd6/0x130 [xfs]
[49989.786428] xfs_log_reserve+0xf6/0x310 [xfs]
[49989.790848] xfs_trans_reserve+0x17f/0x250 [xfs]
[49989.795528] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49989.800036] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49989.804973] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49989.810340] ? lock_release+0x1cd/0x2a0
[49989.814194] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49989.819127] iomap_dio_complete+0x45/0x130
[49989.823235] ? aio_poll_complete_work+0x1b0/0x1b0
[49989.827948] iomap_dio_complete_work+0x17/0x30
[49989.832395] process_one_work+0x26e/0x560
[49989.836415] worker_thread+0x52/0x3b0
[49989.840082] ? process_one_work+0x560/0x560
[49989.844268] kthread+0x12c/0x150
[49989.847506] ? __kthread_bind_mask+0x60/0x60
[49989.851780] ret_from_fork+0x22/0x30
[49989.855365] task:kworker/3:9 state:D stack: 0 pid:173819 ppid: 2 flags:0x00004000
[49989.863801] Workqueue: dio/dm-5 iomap_dio_complete_work
[49989.869027] Call Trace:
[49989.871480] __schedule+0x38b/0xc50
[49989.874981] schedule+0x5b/0xc0
[49989.878134] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49989.882988] xlog_grant_head_check+0xd6/0x130 [xfs]
[49989.887930] xfs_log_reserve+0xf6/0x310 [xfs]
[49989.892365] xfs_trans_reserve+0x17f/0x250 [xfs]
[49989.897045] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49989.901550] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49989.906491] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49989.911857] ? lock_release+0x1cd/0x2a0
[49989.915705] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49989.920636] iomap_dio_complete+0x45/0x130
[49989.924742] ? aio_poll_complete_work+0x1b0/0x1b0
[49989.929448] iomap_dio_complete_work+0x17/0x30
[49989.933894] process_one_work+0x26e/0x560
[49989.937907] worker_thread+0x52/0x3b0
[49989.941573] ? process_one_work+0x560/0x560
[49989.945759] kthread+0x12c/0x150
[49989.948999] ? __kthread_bind_mask+0x60/0x60
[49989.953280] ret_from_fork+0x22/0x30
[49989.956866] task:kworker/3:22 state:D stack: 0 pid:173876 ppid: 2 flags:0x00004000
[49989.965300] Workqueue: dio/dm-5 iomap_dio_complete_work
[49989.970528] Call Trace:
[49989.972980] __schedule+0x38b/0xc50
[49989.976472] schedule+0x5b/0xc0
[49989.979618] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49989.984470] xlog_grant_head_check+0xd6/0x130 [xfs]
[49989.989410] xfs_log_reserve+0xf6/0x310 [xfs]
[49989.993831] xfs_trans_reserve+0x17f/0x250 [xfs]
[49989.998511] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.003019] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.007958] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.013330] ? lock_release+0x1cd/0x2a0
[49990.017169] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.022102] iomap_dio_complete+0x45/0x130
[49990.026208] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.030921] iomap_dio_complete_work+0x17/0x30
[49990.035369] process_one_work+0x26e/0x560
[49990.039390] worker_thread+0x52/0x3b0
[49990.043056] ? process_one_work+0x560/0x560
[49990.047242] kthread+0x12c/0x150
[49990.050482] ? __kthread_bind_mask+0x60/0x60
[49990.054756] ret_from_fork+0x22/0x30
[49990.058381] task:kworker/5:60 state:D stack: 0 pid:173994 ppid: 2 flags:0x00004000
[49990.066820] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.072053] Call Trace:
[49990.074505] __schedule+0x38b/0xc50
[49990.077999] schedule+0x5b/0xc0
[49990.081145] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.085998] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.090938] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.095359] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.100037] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.104552] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.109491] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.114857] ? lock_release+0x1cd/0x2a0
[49990.118703] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.123644] iomap_dio_complete+0x45/0x130
[49990.127742] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.132452] iomap_dio_complete_work+0x17/0x30
[49990.136902] process_one_work+0x26e/0x560
[49990.140916] worker_thread+0x52/0x3b0
[49990.144581] ? process_one_work+0x560/0x560
[49990.148768] kthread+0x12c/0x150
[49990.152009] ? __kthread_bind_mask+0x60/0x60
[49990.156290] ret_from_fork+0x22/0x30
[49990.159876] task:kworker/5:64 state:D stack: 0 pid:173998 ppid: 2 flags:0x00004000
[49990.168310] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.173536] Call Trace:
[49990.175990] __schedule+0x38b/0xc50
[49990.179489] schedule+0x5b/0xc0
[49990.182635] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.187488] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.192431] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.196850] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.201529] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.206055] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.210991] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.216373] ? lock_release+0x1cd/0x2a0
[49990.220214] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.225145] iomap_dio_complete+0x45/0x130
[49990.229252] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.233967] iomap_dio_complete_work+0x17/0x30
[49990.238412] process_one_work+0x26e/0x560
[49990.242424] worker_thread+0x52/0x3b0
[49990.246090] ? process_one_work+0x560/0x560
[49990.250276] kthread+0x12c/0x150
[49990.253510] ? __kthread_bind_mask+0x60/0x60
[49990.257790] ret_from_fork+0x22/0x30
[49990.261375] task:kworker/7:40 state:D stack: 0 pid:174047 ppid: 2 flags:0x00004000
[49990.269821] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.275053] Call Trace:
[49990.277507] __schedule+0x38b/0xc50
[49990.281008] schedule+0x5b/0xc0
[49990.284154] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.289005] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.293946] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.298367] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.303045] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.307551] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.312493] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.317865] ? lock_release+0x1cd/0x2a0
[49990.321705] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.326639] iomap_dio_complete+0x45/0x130
[49990.330744] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.335458] iomap_dio_complete_work+0x17/0x30
[49990.339903] process_one_work+0x26e/0x560
[49990.343916] worker_thread+0x52/0x3b0
[49990.347582] ? process_one_work+0x560/0x560
[49990.351769] kthread+0x12c/0x150
[49990.355010] ? __kthread_bind_mask+0x60/0x60
[49990.359292] ret_from_fork+0x22/0x30
[49990.362884] task:kworker/3:46 state:D stack: 0 pid:174164 ppid: 2 flags:0x00004000
[49990.371320] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.376555] Call Trace:
[49990.379007] __schedule+0x38b/0xc50
[49990.382500] schedule+0x5b/0xc0
[49990.385645] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.390499] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.395439] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.399857] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.404539] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.409046] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.413982] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.419349] ? lock_release+0x1cd/0x2a0
[49990.423189] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.428118] iomap_dio_complete+0x45/0x130
[49990.432217] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.436925] iomap_dio_complete_work+0x17/0x30
[49990.441377] process_one_work+0x26e/0x560
[49990.445391] worker_thread+0x52/0x3b0
[49990.449057] ? process_one_work+0x560/0x560
[49990.453244] kthread+0x12c/0x150
[49990.456482] ? __kthread_bind_mask+0x60/0x60
[49990.460756] ret_from_fork+0x22/0x30
[49990.464340] task:kworker/3:48 state:D stack: 0 pid:174166 ppid: 2 flags:0x00004000
[49990.472777] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.478010] Call Trace:
[49990.480465] __schedule+0x38b/0xc50
[49990.483965] schedule+0x5b/0xc0
[49990.487111] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.491963] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.496903] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.501342] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.506021] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.510527] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.515473] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.520840] ? lock_release+0x1cd/0x2a0
[49990.524680] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.529610] iomap_dio_complete+0x45/0x130
[49990.533708] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.538415] iomap_dio_complete_work+0x17/0x30
[49990.542859] process_one_work+0x26e/0x560
[49990.546876] worker_thread+0x52/0x3b0
[49990.550550] ? process_one_work+0x560/0x560
[49990.554742] kthread+0x12c/0x150
[49990.557975] ? __kthread_bind_mask+0x60/0x60
[49990.562256] ret_from_fork+0x22/0x30
[49990.565844] task:kworker/3:65 state:D stack: 0 pid:174182 ppid: 2 flags:0x00004000
[49990.574275] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.579503] Call Trace:
[49990.581954] __schedule+0x38b/0xc50
[49990.585448] schedule+0x5b/0xc0
[49990.588593] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.593446] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.598386] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.602807] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.607486] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.611993] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.616933] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.622298] ? lock_release+0x1cd/0x2a0
[49990.626155] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.631085] iomap_dio_complete+0x45/0x130
[49990.635193] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.639907] iomap_dio_complete_work+0x17/0x30
[49990.644360] process_one_work+0x26e/0x560
[49990.648376] worker_thread+0x52/0x3b0
[49990.652049] ? process_one_work+0x560/0x560
[49990.656244] kthread+0x12c/0x150
[49990.659483] ? __kthread_bind_mask+0x60/0x60
[49990.663757] ret_from_fork+0x22/0x30
[49990.667361] task:kworker/13:48 state:D stack: 0 pid:174572 ppid: 2 flags:0x00004000
[49990.675793] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.681021] Call Trace:
[49990.683473] __schedule+0x38b/0xc50
[49990.686974] schedule+0x5b/0xc0
[49990.690121] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.694982] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.699923] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.704359] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.709056] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.713563] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.718519] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.723883] ? lock_release+0x1cd/0x2a0
[49990.727722] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.732654] iomap_dio_complete+0x45/0x130
[49990.736753] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.741477] iomap_dio_complete_work+0x17/0x30
[49990.745923] process_one_work+0x26e/0x560
[49990.749935] worker_thread+0x52/0x3b0
[49990.753602] ? process_one_work+0x560/0x560
[49990.757797] kthread+0x12c/0x150
[49990.761055] ? __kthread_bind_mask+0x60/0x60
[49990.765336] ret_from_fork+0x22/0x30
[49990.768933] task:kworker/13:80 state:D stack: 0 pid:174603 ppid: 2 flags:0x00004000
[49990.777375] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.782606] Call Trace:
[49990.785059] __schedule+0x38b/0xc50
[49990.788559] schedule+0x5b/0xc0
[49990.791706] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.796561] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.801501] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.805919] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.810617] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.815123] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.820073] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.825445] ? lock_release+0x1cd/0x2a0
[49990.829283] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.834216] iomap_dio_complete+0x45/0x130
[49990.838314] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.843022] iomap_dio_complete_work+0x17/0x30
[49990.847475] process_one_work+0x26e/0x560
[49990.851487] worker_thread+0x52/0x3b0
[49990.855153] ? process_one_work+0x560/0x560
[49990.859339] kthread+0x12c/0x150
[49990.862588] ? __kthread_bind_mask+0x60/0x60
[49990.866860] ret_from_fork+0x22/0x30
[49990.870455] task:kworker/13:106 state:D stack: 0 pid:174629 ppid: 2 flags:0x00004000
[49990.878889] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.884114] Call Trace:
[49990.886569] __schedule+0x38b/0xc50
[49990.890080] schedule+0x5b/0xc0
[49990.893233] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.898120] xlog_grant_head_check+0xd6/0x130 [xfs]
[49990.903060] xfs_log_reserve+0xf6/0x310 [xfs]
[49990.907490] xfs_trans_reserve+0x17f/0x250 [xfs]
[49990.912178] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49990.916694] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49990.921634] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49990.927013] ? lock_release+0x1cd/0x2a0
[49990.930855] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49990.935793] iomap_dio_complete+0x45/0x130
[49990.939891] ? aio_poll_complete_work+0x1b0/0x1b0
[49990.944599] iomap_dio_complete_work+0x17/0x30
[49990.949061] process_one_work+0x26e/0x560
[49990.953083] worker_thread+0x52/0x3b0
[49990.956756] ? process_one_work+0x560/0x560
[49990.960942] kthread+0x12c/0x150
[49990.964178] ? __kthread_bind_mask+0x60/0x60
[49990.968474] ret_from_fork+0x22/0x30
[49990.972063] task:kworker/0:5 state:D stack: 0 pid:174694 ppid: 2 flags:0x00004000
[49990.980494] Workqueue: dio/dm-5 iomap_dio_complete_work
[49990.985721] Call Trace:
[49990.988181] __schedule+0x38b/0xc50
[49990.991674] schedule+0x5b/0xc0
[49990.994820] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49990.999692] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.004639] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.009061] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.013773] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.018304] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.023247] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.028620] ? lock_release+0x1cd/0x2a0
[49991.032470] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.037409] iomap_dio_complete+0x45/0x130
[49991.041514] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.046236] iomap_dio_complete_work+0x17/0x30
[49991.050683] process_one_work+0x26e/0x560
[49991.054697] worker_thread+0x52/0x3b0
[49991.058370] ? process_one_work+0x560/0x560
[49991.062557] kthread+0x12c/0x150
[49991.065798] ? __kthread_bind_mask+0x60/0x60
[49991.070079] ret_from_fork+0x22/0x30
[49991.073672] task:kworker/0:8 state:D stack: 0 pid:174697 ppid: 2 flags:0x00004000
[49991.082108] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.087341] Call Trace:
[49991.089796] __schedule+0x38b/0xc50
[49991.093298] schedule+0x5b/0xc0
[49991.096451] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.101321] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.106260] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.110689] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.115387] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.119912] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.124861] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.130248] ? lock_release+0x1cd/0x2a0
[49991.134088] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.139021] iomap_dio_complete+0x45/0x130
[49991.143127] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.147842] iomap_dio_complete_work+0x17/0x30
[49991.152298] process_one_work+0x26e/0x560
[49991.156327] worker_thread+0x52/0x3b0
[49991.159991] ? process_one_work+0x560/0x560
[49991.164179] kthread+0x12c/0x150
[49991.167420] ? __kthread_bind_mask+0x60/0x60
[49991.171700] ret_from_fork+0x22/0x30
[49991.175286] task:kworker/0:12 state:D stack: 0 pid:174701 ppid: 2 flags:0x00004000
[49991.183720] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.188954] Call Trace:
[49991.191407] __schedule+0x38b/0xc50
[49991.194909] schedule+0x5b/0xc0
[49991.198054] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.202917] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.207865] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.212292] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.216973] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.221481] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.226420] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.231793] ? lock_release+0x1cd/0x2a0
[49991.235633] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.240564] iomap_dio_complete+0x45/0x130
[49991.244687] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.249395] iomap_dio_complete_work+0x17/0x30
[49991.253850] process_one_work+0x26e/0x560
[49991.257871] worker_thread+0x52/0x3b0
[49991.261543] ? process_one_work+0x560/0x560
[49991.265731] kthread+0x12c/0x150
[49991.268972] ? __kthread_bind_mask+0x60/0x60
[49991.273254] ret_from_fork+0x22/0x30
[49991.276845] task:kworker/0:30 state:D stack: 0 pid:174719 ppid: 2 flags:0x00004000
[49991.285283] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.290515] Call Trace:
[49991.292969] __schedule+0x38b/0xc50
[49991.296490] schedule+0x5b/0xc0
[49991.299641] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.304495] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.309453] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.313890] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.318569] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.323083] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.328043] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.333422] ? lock_release+0x1cd/0x2a0
[49991.337264] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.342194] iomap_dio_complete+0x45/0x130
[49991.346293] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.351024] iomap_dio_complete_work+0x17/0x30
[49991.355470] process_one_work+0x26e/0x560
[49991.359485] worker_thread+0x52/0x3b0
[49991.363157] ? process_one_work+0x560/0x560
[49991.367344] kthread+0x12c/0x150
[49991.370584] ? __kthread_bind_mask+0x60/0x60
[49991.374856] ret_from_fork+0x22/0x30
[49991.378452] task:kworker/13:157 state:D stack: 0 pid:174868 ppid: 2 flags:0x00004000
[49991.386885] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.392128] Call Trace:
[49991.394591] __schedule+0x38b/0xc50
[49991.398091] schedule+0x5b/0xc0
[49991.401238] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.406090] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.411047] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.415469] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.420147] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.424655] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.429593] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.434957] ? lock_release+0x1cd/0x2a0
[49991.438799] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.443729] iomap_dio_complete+0x45/0x130
[49991.447836] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.452552] iomap_dio_complete_work+0x17/0x30
[49991.457013] process_one_work+0x26e/0x560
[49991.461026] worker_thread+0x52/0x3b0
[49991.464693] ? process_one_work+0x560/0x560
[49991.468886] kthread+0x12c/0x150
[49991.472127] ? __kthread_bind_mask+0x60/0x60
[49991.476399] ret_from_fork+0x22/0x30
[49991.479984] task:kworker/13:159 state:D stack: 0 pid:174874 ppid: 2 flags:0x00004000
[49991.488438] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.493673] Call Trace:
[49991.496125] __schedule+0x38b/0xc50
[49991.499619] schedule+0x5b/0xc0
[49991.502772] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.507635] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.512590] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.517030] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.521706] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.526225] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.531163] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.536535] ? lock_release+0x1cd/0x2a0
[49991.540375] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.545306] iomap_dio_complete+0x45/0x130
[49991.549405] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.554122] iomap_dio_complete_work+0x17/0x30
[49991.558574] process_one_work+0x26e/0x560
[49991.562596] worker_thread+0x52/0x3b0
[49991.566262] ? process_one_work+0x560/0x560
[49991.570449] kthread+0x12c/0x150
[49991.573689] ? __kthread_bind_mask+0x60/0x60
[49991.577970] ret_from_fork+0x22/0x30
[49991.581566] task:kworker/17:10 state:D stack: 0 pid:175048 ppid: 2 flags:0x00004000
[49991.589999] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.595226] Call Trace:
[49991.597677] __schedule+0x38b/0xc50
[49991.601182] schedule+0x5b/0xc0
[49991.604333] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.609203] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.614153] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.618582] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.623261] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.627785] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.632733] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.638107] ? lock_release+0x1cd/0x2a0
[49991.641955] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.646903] iomap_dio_complete+0x45/0x130
[49991.651002] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.655716] iomap_dio_complete_work+0x17/0x30
[49991.660162] process_one_work+0x26e/0x560
[49991.664176] worker_thread+0x52/0x3b0
[49991.667849] ? process_one_work+0x560/0x560
[49991.672042] kthread+0x12c/0x150
[49991.675275] ? __kthread_bind_mask+0x60/0x60
[49991.679557] ret_from_fork+0x22/0x30
[49991.683151] task:kworker/17:27 state:D stack: 0 pid:175065 ppid: 2 flags:0x00004000
[49991.691585] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.696812] Call Trace:
[49991.699266] __schedule+0x38b/0xc50
[49991.702766] schedule+0x5b/0xc0
[49991.705920] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.710783] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.715722] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.720161] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.724857] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.729365] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.734320] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.739709] ? lock_release+0x1cd/0x2a0
[49991.743550] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.748489] iomap_dio_complete+0x45/0x130
[49991.752587] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.757294] iomap_dio_complete_work+0x17/0x30
[49991.761750] process_one_work+0x26e/0x560
[49991.765770] worker_thread+0x52/0x3b0
[49991.769434] ? process_one_work+0x560/0x560
[49991.773631] kthread+0x12c/0x150
[49991.776871] ? __kthread_bind_mask+0x60/0x60
[49991.781162] ret_from_fork+0x22/0x30
[49991.784755] task:kworker/17:42 state:D stack: 0 pid:175080 ppid: 2 flags:0x00004000
[49991.793200] Workqueue: dio/dm-5 iomap_dio_complete_work
[49991.798434] Call Trace:
[49991.800896] __schedule+0x38b/0xc50
[49991.804397] schedule+0x5b/0xc0
[49991.807551] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49991.812405] xlog_grant_head_check+0xd6/0x130 [xfs]
[49991.817344] xfs_log_reserve+0xf6/0x310 [xfs]
[49991.821770] xfs_trans_reserve+0x17f/0x250 [xfs]
[49991.826451] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49991.830957] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49991.835899] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49991.841272] ? lock_release+0x1cd/0x2a0
[49991.845119] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49991.850051] iomap_dio_complete+0x45/0x130
[49991.854157] ? aio_poll_complete_work+0x1b0/0x1b0
[49991.858863] iomap_dio_complete_work+0x17/0x30
[49991.863310] process_one_work+0x26e/0x560
[49991.867331] worker_thread+0x52/0x3b0
[49991.870997] ? process_one_work+0x560/0x560
[49991.875202] kthread+0x12c/0x150
[49991.878448] ? __kthread_bind_mask+0x60/0x60
[49991.882723] ret_from_fork+0x22/0x30
[49991.886325] task:kworker/u161:1 state:D stack: 0 pid:176616 ppid: 2 flags:0x00004000
[49991.894760] Workqueue: xfs-cil/dm-5 xlog_cil_push_work [xfs]
[49991.900487] Call Trace:
[49991.902940] __schedule+0x38b/0xc50
[49991.906432] ? lock_release+0x1cd/0x2a0
[49991.910272] schedule+0x5b/0xc0
[49991.913419] xlog_state_get_iclog_space+0x167/0x340 [xfs]
[49991.918879] ? wake_up_q+0xa0/0xa0
[49991.922293] xlog_write+0x159/0xa10 [xfs]
[49991.926385] xlog_cil_push_work+0x2dd/0x630 [xfs]
[49991.931151] ? update_irq_load_avg+0x1df/0x480
[49991.935603] ? sched_clock_cpu+0xc/0xb0
[49991.939444] ? lock_acquire+0x15d/0x380
[49991.943285] ? lock_acquire+0x15d/0x380
[49991.947130] ? lock_release+0x1cd/0x2a0
[49991.950970] ? lock_acquire+0x15d/0x380
[49991.954816] ? lock_release+0x1cd/0x2a0
[49991.958674] ? finish_task_switch.isra.0+0xa0/0x2c0
[49991.963563] process_one_work+0x26e/0x560
[49991.967583] worker_thread+0x52/0x3b0
[49991.971249] ? process_one_work+0x560/0x560
[49991.975435] kthread+0x12c/0x150
[49991.978668] ? __kthread_bind_mask+0x60/0x60
[49991.982967] ret_from_fork+0x22/0x30
[49991.986569] task:kworker/3:120 state:D stack: 0 pid:177583 ppid: 2 flags:0x00004000
[49991.995004] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.000239] Call Trace:
[49992.002692] __schedule+0x38b/0xc50
[49992.006191] schedule+0x5b/0xc0
[49992.009353] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.014217] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.019158] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.023595] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.028274] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.032806] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.037755] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.043129] ? lock_release+0x1cd/0x2a0
[49992.046976] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.051914] iomap_dio_complete+0x45/0x130
[49992.056015] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.060730] iomap_dio_complete_work+0x17/0x30
[49992.065183] process_one_work+0x26e/0x560
[49992.069197] worker_thread+0x52/0x3b0
[49992.072862] ? process_one_work+0x560/0x560
[49992.077056] kthread+0x12c/0x150
[49992.080288] ? __kthread_bind_mask+0x60/0x60
[49992.084596] ret_from_fork+0x22/0x30
[49992.088189] task:kworker/3:127 state:D stack: 0 pid:177590 ppid: 2 flags:0x00004000
[49992.096634] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.101859] Call Trace:
[49992.104314] __schedule+0x38b/0xc50
[49992.107814] schedule+0x5b/0xc0
[49992.110976] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.115827] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.120770] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.125191] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.129889] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.134404] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.139343] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.144723] ? lock_release+0x1cd/0x2a0
[49992.148572] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.153510] iomap_dio_complete+0x45/0x130
[49992.157609] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.162315] iomap_dio_complete_work+0x17/0x30
[49992.166763] process_one_work+0x26e/0x560
[49992.170783] worker_thread+0x52/0x3b0
[49992.174448] ? process_one_work+0x560/0x560
[49992.178634] kthread+0x12c/0x150
[49992.181867] ? __kthread_bind_mask+0x60/0x60
[49992.186156] ret_from_fork+0x22/0x30
[49992.189741] task:kworker/17:68 state:D stack: 0 pid:177770 ppid: 2 flags:0x00004000
[49992.198197] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.203428] Call Trace:
[49992.205883] __schedule+0x38b/0xc50
[49992.209383] schedule+0x5b/0xc0
[49992.212537] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.217392] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.222349] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.226785] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.231466] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.235970] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.240911] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.246284] ? lock_release+0x1cd/0x2a0
[49992.250122] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.255055] iomap_dio_complete+0x45/0x130
[49992.259155] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.263877] iomap_dio_complete_work+0x17/0x30
[49992.268333] process_one_work+0x26e/0x560
[49992.272353] worker_thread+0x52/0x3b0
[49992.276025] ? process_one_work+0x560/0x560
[49992.280222] kthread+0x12c/0x150
[49992.283463] ? __kthread_bind_mask+0x60/0x60
[49992.287745] ret_from_fork+0x22/0x30
[49992.291336] task:kworker/15:50 state:D stack: 0 pid:178032 ppid: 2 flags:0x00004000
[49992.299773] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.305017] Call Trace:
[49992.307468] __schedule+0x38b/0xc50
[49992.310962] schedule+0x5b/0xc0
[49992.314116] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.318969] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.323907] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.328328] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.333008] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.337524] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.342465] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.347846] ? lock_release+0x1cd/0x2a0
[49992.351694] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.356623] iomap_dio_complete+0x45/0x130
[49992.360739] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.365456] iomap_dio_complete_work+0x17/0x30
[49992.369910] process_one_work+0x26e/0x560
[49992.373931] worker_thread+0x52/0x3b0
[49992.377614] ? process_one_work+0x560/0x560
[49992.381801] kthread+0x12c/0x150
[49992.385042] ? __kthread_bind_mask+0x60/0x60
[49992.389328] ret_from_fork+0x22/0x30
[49992.392917] task:kworker/15:57 state:D stack: 0 pid:178039 ppid: 2 flags:0x00004000
[49992.401360] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.406593] Call Trace:
[49992.409048] __schedule+0x38b/0xc50
[49992.412559] schedule+0x5b/0xc0
[49992.415709] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.420565] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.425515] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.429933] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.434623] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.439139] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.444093] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.449466] ? lock_release+0x1cd/0x2a0
[49992.453308] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.458264] iomap_dio_complete+0x45/0x130
[49992.462371] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.467083] iomap_dio_complete_work+0x17/0x30
[49992.471531] process_one_work+0x26e/0x560
[49992.475543] worker_thread+0x52/0x3b0
[49992.479210] ? process_one_work+0x560/0x560
[49992.483412] kthread+0x12c/0x150
[49992.486645] ? __kthread_bind_mask+0x60/0x60
[49992.490927] ret_from_fork+0x22/0x30
[49992.494530] task:kworker/17:106 state:D stack: 0 pid:178551 ppid: 2 flags:0x00004000
[49992.502963] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.508188] Call Trace:
[49992.510643] __schedule+0x38b/0xc50
[49992.514152] schedule+0x5b/0xc0
[49992.517297] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.522170] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.527108] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.531545] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.536234] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.540749] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.545688] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.551054] ? lock_release+0x1cd/0x2a0
[49992.554903] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.559832] iomap_dio_complete+0x45/0x130
[49992.563930] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.568655] iomap_dio_complete_work+0x17/0x30
[49992.573108] process_one_work+0x26e/0x560
[49992.577141] worker_thread+0x52/0x3b0
[49992.580815] ? process_one_work+0x560/0x560
[49992.585010] kthread+0x12c/0x150
[49992.588249] ? __kthread_bind_mask+0x60/0x60
[49992.592522] ret_from_fork+0x22/0x30
[49992.596116] task:kworker/3:189 state:D stack: 0 pid:178661 ppid: 2 flags:0x00004000
[49992.604550] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.609778] Call Trace:
[49992.612249] __schedule+0x38b/0xc50
[49992.615758] schedule+0x5b/0xc0
[49992.618909] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.623773] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.628730] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.633150] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.637856] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.642364] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.647312] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.652701] ? lock_release+0x1cd/0x2a0
[49992.656548] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.661481] iomap_dio_complete+0x45/0x130
[49992.665587] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.670293] iomap_dio_complete_work+0x17/0x30
[49992.674738] process_one_work+0x26e/0x560
[49992.678754] worker_thread+0x52/0x3b0
[49992.682425] ? process_one_work+0x560/0x560
[49992.686611] kthread+0x12c/0x150
[49992.689844] ? __kthread_bind_mask+0x60/0x60
[49992.694119] ret_from_fork+0x22/0x30
[49992.697712] task:kworker/7:123 state:D stack: 0 pid:178852 ppid: 2 flags:0x00004000
[49992.706147] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.711381] Call Trace:
[49992.713842] __schedule+0x38b/0xc50
[49992.717336] schedule+0x5b/0xc0
[49992.720490] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.725342] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.730301] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.734720] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.739399] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.743916] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.748856] ? next_online_pgdat+0x2a/0x50
[49992.752963] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.758334] ? lock_release+0x1cd/0x2a0
[49992.762174] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.767105] iomap_dio_complete+0x45/0x130
[49992.771205] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.775918] iomap_dio_complete_work+0x17/0x30
[49992.780382] process_one_work+0x26e/0x560
[49992.784396] worker_thread+0x52/0x3b0
[49992.788068] ? process_one_work+0x560/0x560
[49992.792256] kthread+0x12c/0x150
[49992.795497] ? __kthread_bind_mask+0x60/0x60
[49992.799777] ret_from_fork+0x22/0x30
[49992.803372] task:kworker/5:153 state:D stack: 0 pid:181122 ppid: 2 flags:0x00004000
[49992.811807] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.817050] Call Trace:
[49992.819502] __schedule+0x38b/0xc50
[49992.822996] schedule+0x5b/0xc0
[49992.826160] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.831009] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.835951] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.840385] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.845076] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.849583] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.854534] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.859923] ? lock_release+0x1cd/0x2a0
[49992.863780] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.868735] iomap_dio_complete+0x45/0x130
[49992.872842] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.877559] iomap_dio_complete_work+0x17/0x30
[49992.882011] process_one_work+0x26e/0x560
[49992.886025] worker_thread+0x52/0x3b0
[49992.889691] ? process_one_work+0x560/0x560
[49992.893877] kthread+0x12c/0x150
[49992.897110] ? __kthread_bind_mask+0x60/0x60
[49992.901407] ret_from_fork+0x22/0x30
[49992.905002] task:kworker/17:123 state:D stack: 0 pid:181262 ppid: 2 flags:0x00004000
[49992.913437] Workqueue: dio/dm-5 iomap_dio_complete_work
[49992.918663] Call Trace:
[49992.921115] __schedule+0x38b/0xc50
[49992.924608] schedule+0x5b/0xc0
[49992.927763] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49992.932623] xlog_grant_head_check+0xd6/0x130 [xfs]
[49992.937581] xfs_log_reserve+0xf6/0x310 [xfs]
[49992.942002] xfs_trans_reserve+0x17f/0x250 [xfs]
[49992.946680] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49992.951207] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49992.956162] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49992.961535] ? lock_release+0x1cd/0x2a0
[49992.965384] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49992.970315] iomap_dio_complete+0x45/0x130
[49992.974422] ? aio_poll_complete_work+0x1b0/0x1b0
[49992.979136] iomap_dio_complete_work+0x17/0x30
[49992.983582] process_one_work+0x26e/0x560
[49992.987597] worker_thread+0x52/0x3b0
[49992.991270] ? process_one_work+0x560/0x560
[49992.995463] kthread+0x12c/0x150
[49992.998706] ? __kthread_bind_mask+0x60/0x60
[49993.002986] ret_from_fork+0x22/0x30
[49993.006579] task:kworker/17:137 state:D stack: 0 pid:181276 ppid: 2 flags:0x00004000
[49993.015017] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.020249] Call Trace:
[49993.022704] __schedule+0x38b/0xc50
[49993.026206] schedule+0x5b/0xc0
[49993.029356] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.034228] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.039169] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.043590] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.048270] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.052794] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.057733] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.063104] ? lock_release+0x1cd/0x2a0
[49993.066944] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.071883] iomap_dio_complete+0x45/0x130
[49993.075982] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.080688] iomap_dio_complete_work+0x17/0x30
[49993.085134] process_one_work+0x26e/0x560
[49993.089148] worker_thread+0x52/0x3b0
[49993.092821] ? process_one_work+0x560/0x560
[49993.097008] kthread+0x12c/0x150
[49993.100249] ? __kthread_bind_mask+0x60/0x60
[49993.104548] ret_from_fork+0x22/0x30
[49993.108141] task:kworker/17:140 state:D stack: 0 pid:181279 ppid: 2 flags:0x00004000
[49993.116584] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.121810] Call Trace:
[49993.124264] __schedule+0x38b/0xc50
[49993.127765] schedule+0x5b/0xc0
[49993.130918] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.135779] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.140720] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.145159] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.149856] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.154363] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.159336] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.164725] ? lock_release+0x1cd/0x2a0
[49993.168567] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.173497] iomap_dio_complete+0x45/0x130
[49993.177595] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.182320] iomap_dio_complete_work+0x17/0x30
[49993.186775] process_one_work+0x26e/0x560
[49993.190796] worker_thread+0x52/0x3b0
[49993.194470] ? process_one_work+0x560/0x560
[49993.198665] kthread+0x12c/0x150
[49993.201904] ? __kthread_bind_mask+0x60/0x60
[49993.206188] ret_from_fork+0x22/0x30
[49993.209777] task:kworker/3:195 state:D stack: 0 pid:181289 ppid: 2 flags:0x00004000
[49993.218225] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.223459] Call Trace:
[49993.225910] __schedule+0x38b/0xc50
[49993.229421] schedule+0x5b/0xc0
[49993.232574] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.237430] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.242368] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.246788] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.251477] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.255984] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.260923] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.266294] ? lock_release+0x1cd/0x2a0
[49993.270134] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.275066] iomap_dio_complete+0x45/0x130
[49993.279166] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.283890] iomap_dio_complete_work+0x17/0x30
[49993.288351] process_one_work+0x26e/0x560
[49993.292365] worker_thread+0x52/0x3b0
[49993.296031] ? process_one_work+0x560/0x560
[49993.300226] kthread+0x12c/0x150
[49993.303465] ? __kthread_bind_mask+0x60/0x60
[49993.307756] ret_from_fork+0x22/0x30
[49993.311347] task:kworker/5:165 state:D stack: 0 pid:181411 ppid: 2 flags:0x00004000
[49993.319785] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.325037] Call Trace:
[49993.327490] __schedule+0x38b/0xc50
[49993.330991] schedule+0x5b/0xc0
[49993.334146] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.338996] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.343939] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.348356] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.353036] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.357544] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.362484] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.367866] ? lock_release+0x1cd/0x2a0
[49993.371714] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.376663] iomap_dio_complete+0x45/0x130
[49993.380769] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.385475] iomap_dio_complete_work+0x17/0x30
[49993.389920] process_one_work+0x26e/0x560
[49993.393934] worker_thread+0x52/0x3b0
[49993.397599] ? process_one_work+0x560/0x560
[49993.401785] kthread+0x12c/0x150
[49993.405018] ? __kthread_bind_mask+0x60/0x60
[49993.409300] ret_from_fork+0x22/0x30
[49993.412897] task:kworker/13:186 state:D stack: 0 pid:184018 ppid: 2 flags:0x00004000
[49993.421353] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.426580] Call Trace:
[49993.429034] __schedule+0x38b/0xc50
[49993.432536] schedule+0x5b/0xc0
[49993.435689] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.440542] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.445481] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.449903] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.454578] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.459079] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.464020] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.469393] ? lock_release+0x1cd/0x2a0
[49993.473240] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.478172] iomap_dio_complete+0x45/0x130
[49993.482277] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.486984] iomap_dio_complete_work+0x17/0x30
[49993.491430] process_one_work+0x26e/0x560
[49993.495446] worker_thread+0x52/0x3b0
[49993.499116] ? process_one_work+0x560/0x560
[49993.503304] kthread+0x12c/0x150
[49993.506543] ? __kthread_bind_mask+0x60/0x60
[49993.510833] ret_from_fork+0x22/0x30
[49993.514422] task:kworker/0:124 state:D stack: 0 pid:186072 ppid: 2 flags:0x00004000
[49993.522879] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.528108] Call Trace:
[49993.530559] __schedule+0x38b/0xc50
[49993.534068] schedule+0x5b/0xc0
[49993.537214] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.542069] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.547027] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.551463] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.556144] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.560667] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.565607] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.570978] ? lock_release+0x1cd/0x2a0
[49993.574819] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.579758] iomap_dio_complete+0x45/0x130
[49993.583858] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.588588] iomap_dio_complete_work+0x17/0x30
[49993.593051] process_one_work+0x26e/0x560
[49993.597065] worker_thread+0x52/0x3b0
[49993.600748] ? process_one_work+0x560/0x560
[49993.604934] kthread+0x12c/0x150
[49993.608174] ? __kthread_bind_mask+0x60/0x60
[49993.612455] ret_from_fork+0x22/0x30
[49993.616050] task:kworker/0:134 state:D stack: 0 pid:186618 ppid: 2 flags:0x00004000
[49993.624486] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.629727] Call Trace:
[49993.632199] __schedule+0x38b/0xc50
[49993.635708] schedule+0x5b/0xc0
[49993.638852] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.643708] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.648647] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.653066] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.657764] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.662270] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.667228] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.672600] ? lock_release+0x1cd/0x2a0
[49993.676447] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.681386] iomap_dio_complete+0x45/0x130
[49993.685489] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.690203] iomap_dio_complete_work+0x17/0x30
[49993.694657] process_one_work+0x26e/0x560
[49993.698679] worker_thread+0x52/0x3b0
[49993.702351] ? process_one_work+0x560/0x560
[49993.706537] kthread+0x12c/0x150
[49993.709779] ? __kthread_bind_mask+0x60/0x60
[49993.714061] ret_from_fork+0x22/0x30
[49993.717651] task:kworker/0:137 state:D stack: 0 pid:186621 ppid: 2 flags:0x00004000
[49993.726088] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.731314] Call Trace:
[49993.733768] __schedule+0x38b/0xc50
[49993.737270] schedule+0x5b/0xc0
[49993.740422] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.745295] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.750235] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.754653] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.759334] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.763839] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49993.768788] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49993.774152] ? lock_release+0x1cd/0x2a0
[49993.777993] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49993.782942] iomap_dio_complete+0x45/0x130
[49993.787046] ? aio_poll_complete_work+0x1b0/0x1b0
[49993.791754] iomap_dio_complete_work+0x17/0x30
[49993.796228] process_one_work+0x26e/0x560
[49993.800247] worker_thread+0x52/0x3b0
[49993.803921] ? process_one_work+0x560/0x560
[49993.808107] kthread+0x12c/0x150
[49993.811347] ? __kthread_bind_mask+0x60/0x60
[49993.815621] ret_from_fork+0x22/0x30
[49993.819216] task:kworker/u162:6 state:D stack: 0 pid:189040 ppid: 2 flags:0x00004000
[49993.827648] Workqueue: writeback wb_workfn (flush-253:5)
[49993.832969] Call Trace:
[49993.835423] __schedule+0x38b/0xc50
[49993.838916] schedule+0x5b/0xc0
[49993.842062] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.846932] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.851895] xfs_log_reserve+0xf6/0x310 [xfs]
[49993.856317] ? lock_release+0x1cd/0x2a0
[49993.860158] xfs_trans_reserve+0x17f/0x250 [xfs]
[49993.864838] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49993.869343] xfs_bmapi_convert_delalloc+0xb1/0x470 [xfs]
[49993.874713] xfs_map_blocks+0x1b2/0x5c0 [xfs]
[49993.879131] iomap_do_writepage+0x161/0x860
[49993.883325] write_cache_pages+0x18d/0x440
[49993.887431] ? iomap_readahead_actor+0x1d0/0x1d0
[49993.892059] iomap_writepages+0x1c/0x40
[49993.895904] xfs_vm_writepages+0x6f/0x90 [xfs]
[49993.900405] do_writepages+0x28/0xa0
[49993.903992] ? lock_acquire+0x15d/0x380
[49993.907839] ? lock_release+0x1cd/0x2a0
[49993.911678] ? trace_hardirqs_on+0x1b/0xd0
[49993.915785] ? lock_release+0x1cd/0x2a0
[49993.919625] __writeback_single_inode+0x54/0x520
[49993.924254] writeback_sb_inodes+0x1e3/0x4e0
[49993.928538] __writeback_inodes_wb+0x4c/0xe0
[49993.932816] wb_writeback+0x283/0x400
[49993.936483] wb_workfn+0x2da/0x630
[49993.939898] ? lock_acquire+0x15d/0x380
[49993.943745] process_one_work+0x26e/0x560
[49993.947767] worker_thread+0x52/0x3b0
[49993.951449] ? process_one_work+0x560/0x560
[49993.955643] kthread+0x12c/0x150
[49993.958885] ? __kthread_bind_mask+0x60/0x60
[49993.963165] ret_from_fork+0x22/0x30
[49993.966751] task:kworker/7:156 state:D stack: 0 pid:189055 ppid: 2 flags:0x00004000
[49993.975195] Workqueue: dio/dm-5 iomap_dio_complete_work
[49993.980446] Call Trace:
[49993.982899] __schedule+0x38b/0xc50
[49993.986401] schedule+0x5b/0xc0
[49993.989555] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49993.994408] xlog_grant_head_check+0xd6/0x130 [xfs]
[49993.999349] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.003767] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.008448] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.012973] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.017910] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.023283] ? lock_release+0x1cd/0x2a0
[49994.027123] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.032065] iomap_dio_complete+0x45/0x130
[49994.036172] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.040886] iomap_dio_complete_work+0x17/0x30
[49994.045340] process_one_work+0x26e/0x560
[49994.049353] worker_thread+0x52/0x3b0
[49994.053026] ? process_one_work+0x560/0x560
[49994.057212] kthread+0x12c/0x150
[49994.060445] ? __kthread_bind_mask+0x60/0x60
[49994.064735] ret_from_fork+0x22/0x30
[49994.068345] task:kworker/7:159 state:D stack: 0 pid:189058 ppid: 2 flags:0x00004000
[49994.076783] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.082024] Call Trace:
[49994.084477] __schedule+0x38b/0xc50
[49994.087969] schedule+0x5b/0xc0
[49994.091116] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.095987] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.100943] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.105372] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.110070] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.114577] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.119516] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.124888] ? lock_release+0x1cd/0x2a0
[49994.128737] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.133675] iomap_dio_complete+0x45/0x130
[49994.137775] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.142499] iomap_dio_complete_work+0x17/0x30
[49994.146951] process_one_work+0x26e/0x560
[49994.150966] worker_thread+0x52/0x3b0
[49994.154640] ? process_one_work+0x560/0x560
[49994.158843] kthread+0x12c/0x150
[49994.162086] ? __kthread_bind_mask+0x60/0x60
[49994.166364] ret_from_fork+0x22/0x30
[49994.169967] task:kworker/0:174 state:D stack: 0 pid:191466 ppid: 2 flags:0x00004000
[49994.178404] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.183638] Call Trace:
[49994.186090] __schedule+0x38b/0xc50
[49994.189582] schedule+0x5b/0xc0
[49994.192737] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.197590] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.202530] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.206960] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.211657] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.216171] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.221110] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.226493] ? lock_release+0x1cd/0x2a0
[49994.230342] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.235297] iomap_dio_complete+0x45/0x130
[49994.239397] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.244112] iomap_dio_complete_work+0x17/0x30
[49994.248565] process_one_work+0x26e/0x560
[49994.252579] worker_thread+0x52/0x3b0
[49994.256253] ? process_one_work+0x560/0x560
[49994.260441] kthread+0x12c/0x150
[49994.263688] ? __kthread_bind_mask+0x60/0x60
[49994.267961] ret_from_fork+0x22/0x30
[49994.271566] task:kworker/5:189 state:D stack: 0 pid:198195 ppid: 2 flags:0x00004000
[49994.280007] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.285232] Call Trace:
[49994.287693] __schedule+0x38b/0xc50
[49994.291186] schedule+0x5b/0xc0
[49994.294331] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.299186] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.304125] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.308547] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.313225] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.317750] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.322690] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.328061] ? lock_release+0x1cd/0x2a0
[49994.331900] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.336857] iomap_dio_complete+0x45/0x130
[49994.340967] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.345671] iomap_dio_complete_work+0x17/0x30
[49994.350126] process_one_work+0x26e/0x560
[49994.354139] worker_thread+0x52/0x3b0
[49994.357804] ? process_one_work+0x560/0x560
[49994.362008] kthread+0x12c/0x150
[49994.365250] ? __kthread_bind_mask+0x60/0x60
[49994.369529] ret_from_fork+0x22/0x30
[49994.373117] task:kworker/5:197 state:D stack: 0 pid:198203 ppid: 2 flags:0x00004000
[49994.381550] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.386784] Call Trace:
[49994.389237] __schedule+0x38b/0xc50
[49994.392730] schedule+0x5b/0xc0
[49994.395901] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.400754] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.405712] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.410133] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.414820] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.419328] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.424277] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.429641] ? lock_release+0x1cd/0x2a0
[49994.433489] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.438428] iomap_dio_complete+0x45/0x130
[49994.442528] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.447249] iomap_dio_complete_work+0x17/0x30
[49994.451695] process_one_work+0x26e/0x560
[49994.455718] worker_thread+0x52/0x3b0
[49994.459400] ? process_one_work+0x560/0x560
[49994.463596] kthread+0x12c/0x150
[49994.466835] ? __kthread_bind_mask+0x60/0x60
[49994.471108] ret_from_fork+0x22/0x30
[49994.474691] task:kworker/5:203 state:D stack: 0 pid:198209 ppid: 2 flags:0x00004000
[49994.483147] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.488380] Call Trace:
[49994.490835] __schedule+0x38b/0xc50
[49994.494344] schedule+0x5b/0xc0
[49994.497499] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.502352] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.507299] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.511720] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.516398] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.520905] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.525846] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.531211] ? lock_release+0x1cd/0x2a0
[49994.535076] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.540006] iomap_dio_complete+0x45/0x130
[49994.544105] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.548828] iomap_dio_complete_work+0x17/0x30
[49994.553301] process_one_work+0x26e/0x560
[49994.557313] worker_thread+0x52/0x3b0
[49994.560978] ? process_one_work+0x560/0x560
[49994.565164] kthread+0x12c/0x150
[49994.568413] ? __kthread_bind_mask+0x60/0x60
[49994.572688] ret_from_fork+0x22/0x30
[49994.576279] task:kworker/5:204 state:D stack: 0 pid:198210 ppid: 2 flags:0x00004000
[49994.584725] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.589968] Call Trace:
[49994.592421] __schedule+0x38b/0xc50
[49994.595922] schedule+0x5b/0xc0
[49994.599076] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.603945] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.608887] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.613306] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.617985] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.622492] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.627434] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.632807] ? lock_release+0x1cd/0x2a0
[49994.636654] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.641584] iomap_dio_complete+0x45/0x130
[49994.645684] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.650399] iomap_dio_complete_work+0x17/0x30
[49994.654862] process_one_work+0x26e/0x560
[49994.658883] worker_thread+0x52/0x3b0
[49994.662550] ? process_one_work+0x560/0x560
[49994.666743] kthread+0x12c/0x150
[49994.669975] ? __kthread_bind_mask+0x60/0x60
[49994.674247] ret_from_fork+0x22/0x30
[49994.677842] task:kworker/5:231 state:D stack: 0 pid:198249 ppid: 2 flags:0x00004000
[49994.686279] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.691510] Call Trace:
[49994.693973] __schedule+0x38b/0xc50
[49994.697483] schedule+0x5b/0xc0
[49994.700637] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.705500] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.710455] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.714893] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.719590] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.724097] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.729039] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.734428] ? lock_release+0x1cd/0x2a0
[49994.738275] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.743206] iomap_dio_complete+0x45/0x130
[49994.747323] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.752029] iomap_dio_complete_work+0x17/0x30
[49994.756484] process_one_work+0x26e/0x560
[49994.760506] worker_thread+0x52/0x3b0
[49994.764177] ? process_one_work+0x560/0x560
[49994.768364] kthread+0x12c/0x150
[49994.771606] ? __kthread_bind_mask+0x60/0x60
[49994.775888] ret_from_fork+0x22/0x30
[49994.779481] task:kworker/5:233 state:D stack: 0 pid:198251 ppid: 2 flags:0x00004000
[49994.787943] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.793178] Call Trace:
[49994.795638] __schedule+0x38b/0xc50
[49994.799140] schedule+0x5b/0xc0
[49994.802292] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.807156] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.812114] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.816551] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.821231] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.825736] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.830676] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.836050] ? lock_release+0x1cd/0x2a0
[49994.839896] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.844827] iomap_dio_complete+0x45/0x130
[49994.848934] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.853641] iomap_dio_complete_work+0x17/0x30
[49994.858088] process_one_work+0x26e/0x560
[49994.862109] worker_thread+0x52/0x3b0
[49994.865775] ? process_one_work+0x560/0x560
[49994.869970] kthread+0x12c/0x150
[49994.873211] ? __kthread_bind_mask+0x60/0x60
[49994.877508] ret_from_fork+0x22/0x30
[49994.881093] task:kworker/0:201 state:D stack: 0 pid:198411 ppid: 2 flags:0x00004000
[49994.889528] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.894764] Call Trace:
[49994.897217] __schedule+0x38b/0xc50
[49994.900718] schedule+0x5b/0xc0
[49994.903870] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49994.908741] xlog_grant_head_check+0xd6/0x130 [xfs]
[49994.913682] xfs_log_reserve+0xf6/0x310 [xfs]
[49994.918101] xfs_trans_reserve+0x17f/0x250 [xfs]
[49994.922799] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49994.927323] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49994.932282] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49994.937661] ? lock_release+0x1cd/0x2a0
[49994.941502] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49994.946433] iomap_dio_complete+0x45/0x130
[49994.950540] ? aio_poll_complete_work+0x1b0/0x1b0
[49994.955245] iomap_dio_complete_work+0x17/0x30
[49994.959699] process_one_work+0x26e/0x560
[49994.963732] worker_thread+0x52/0x3b0
[49994.967403] ? process_one_work+0x560/0x560
[49994.971591] kthread+0x12c/0x150
[49994.974830] ? __kthread_bind_mask+0x60/0x60
[49994.979113] ret_from_fork+0x22/0x30
[49994.982709] task:kworker/17:202 state:D stack: 0 pid:200676 ppid: 2 flags:0x00004000
[49994.991153] Workqueue: dio/dm-5 iomap_dio_complete_work
[49994.996393] Call Trace:
[49994.998846] __schedule+0x38b/0xc50
[49995.002373] schedule+0x5b/0xc0
[49995.005518] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.010373] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.015329] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.019757] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.024439] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.028945] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.033885] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.039276] ? lock_release+0x1cd/0x2a0
[49995.043124] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.048071] iomap_dio_complete+0x45/0x130
[49995.052168] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.056895] iomap_dio_complete_work+0x17/0x30
[49995.061348] process_one_work+0x26e/0x560
[49995.065361] worker_thread+0x52/0x3b0
[49995.069036] ? process_one_work+0x560/0x560
[49995.073228] kthread+0x12c/0x150
[49995.076471] ? __kthread_bind_mask+0x60/0x60
[49995.080751] ret_from_fork+0x22/0x30
[49995.084344] task:kworker/17:205 state:D stack: 0 pid:200679 ppid: 2 flags:0x00004000
[49995.092780] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.098015] Call Trace:
[49995.100468] __schedule+0x38b/0xc50
[49995.103961] schedule+0x5b/0xc0
[49995.107114] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.111968] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.116908] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.121331] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.126007] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.130516] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.135454] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.140845] ? lock_release+0x1cd/0x2a0
[49995.144694] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.149623] iomap_dio_complete+0x45/0x130
[49995.153723] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.158436] iomap_dio_complete_work+0x17/0x30
[49995.162881] process_one_work+0x26e/0x560
[49995.166896] worker_thread+0x52/0x3b0
[49995.170570] ? process_one_work+0x560/0x560
[49995.174765] kthread+0x12c/0x150
[49995.178005] ? __kthread_bind_mask+0x60/0x60
[49995.182278] ret_from_fork+0x22/0x30
[49995.185876] task:kworker/17:218 state:D stack: 0 pid:202655 ppid: 2 flags:0x00004000
[49995.194323] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.199558] Call Trace:
[49995.202013] __schedule+0x38b/0xc50
[49995.205515] schedule+0x5b/0xc0
[49995.208667] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.213522] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.218460] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.222889] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.227585] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.232103] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.237058] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.242448] ? lock_release+0x1cd/0x2a0
[49995.246286] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.251228] iomap_dio_complete+0x45/0x130
[49995.255325] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.260033] iomap_dio_complete_work+0x17/0x30
[49995.264487] process_one_work+0x26e/0x560
[49995.268501] worker_thread+0x52/0x3b0
[49995.272175] ? process_one_work+0x560/0x560
[49995.276370] kthread+0x12c/0x150
[49995.279609] ? __kthread_bind_mask+0x60/0x60
[49995.283881] ret_from_fork+0x22/0x30
[49995.287467] task:kworker/17:226 state:D stack: 0 pid:202663 ppid: 2 flags:0x00004000
[49995.295913] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.301145] Call Trace:
[49995.303601] __schedule+0x38b/0xc50
[49995.307100] schedule+0x5b/0xc0
[49995.310254] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.315116] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.320055] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.324492] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.329173] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.333707] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.338654] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.344027] ? lock_release+0x1cd/0x2a0
[49995.347873] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.352804] iomap_dio_complete+0x45/0x130
[49995.356903] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.361621] iomap_dio_complete_work+0x17/0x30
[49995.366084] process_one_work+0x26e/0x560
[49995.370114] worker_thread+0x52/0x3b0
[49995.373806] ? process_one_work+0x560/0x560
[49995.378009] kthread+0x12c/0x150
[49995.381248] ? __kthread_bind_mask+0x60/0x60
[49995.385521] ret_from_fork+0x22/0x30
[49995.389143] task:kworker/0:212 state:D stack: 0 pid:206986 ppid: 2 flags:0x00004000
[49995.397585] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.402812] Call Trace:
[49995.405263] __schedule+0x38b/0xc50
[49995.408766] schedule+0x5b/0xc0
[49995.411917] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.416773] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.421713] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.426133] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.430811] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.435319] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.440258] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.445624] ? lock_release+0x1cd/0x2a0
[49995.449471] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.454401] iomap_dio_complete+0x45/0x130
[49995.458501] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.463216] iomap_dio_complete_work+0x17/0x30
[49995.467669] process_one_work+0x26e/0x560
[49995.471700] worker_thread+0x52/0x3b0
[49995.475374] ? process_one_work+0x560/0x560
[49995.479561] kthread+0x12c/0x150
[49995.482801] ? __kthread_bind_mask+0x60/0x60
[49995.487092] ret_from_fork+0x22/0x30
[49995.490683] task:kworker/0:221 state:D stack: 0 pid:206995 ppid: 2 flags:0x00004000
[49995.499136] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.504363] Call Trace:
[49995.506825] __schedule+0x38b/0xc50
[49995.510326] schedule+0x5b/0xc0
[49995.513479] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.518333] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.523290] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.527710] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.532390] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.536916] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.541870] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.547241] ? lock_release+0x1cd/0x2a0
[49995.551084] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.556016] iomap_dio_complete+0x45/0x130
[49995.560121] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.564846] iomap_dio_complete_work+0x17/0x30
[49995.569292] process_one_work+0x26e/0x560
[49995.573313] worker_thread+0x52/0x3b0
[49995.576979] ? process_one_work+0x560/0x560
[49995.581166] kthread+0x12c/0x150
[49995.584404] ? __kthread_bind_mask+0x60/0x60
[49995.588687] ret_from_fork+0x22/0x30
[49995.592280] task:kworker/u161:5 state:D stack: 0 pid:207016 ppid: 2 flags:0x00004000
[49995.600714] Workqueue: xfs-cil/dm-5 xlog_cil_push_work [xfs]
[49995.606453] Call Trace:
[49995.608906] __schedule+0x38b/0xc50
[49995.612407] ? lock_release+0x1cd/0x2a0
[49995.616254] schedule+0x5b/0xc0
[49995.619398] xlog_state_get_iclog_space+0x167/0x340 [xfs]
[49995.624878] ? wake_up_q+0xa0/0xa0
[49995.628292] xlog_write+0x159/0xa10 [xfs]
[49995.632384] xlog_cil_push_work+0x2dd/0x630 [xfs]
[49995.637152] ? update_irq_load_avg+0x1df/0x480
[49995.641602] ? sched_clock_cpu+0xc/0xb0
[49995.645443] ? lock_acquire+0x15d/0x380
[49995.649291] ? lock_release+0x1cd/0x2a0
[49995.653137] ? lock_acquire+0x15d/0x380
[49995.656977] ? lock_release+0x1cd/0x2a0
[49995.660814] ? finish_task_switch.isra.0+0xa0/0x2c0
[49995.665716] process_one_work+0x26e/0x560
[49995.669744] worker_thread+0x52/0x3b0
[49995.673418] ? process_one_work+0x560/0x560
[49995.677612] kthread+0x12c/0x150
[49995.680853] ? __kthread_bind_mask+0x60/0x60
[49995.685135] ret_from_fork+0x22/0x30
[49995.688726] task:kworker/3:213 state:D stack: 0 pid:207036 ppid: 2 flags:0x00004000
[49995.697164] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.702399] Call Trace:
[49995.704860] __schedule+0x38b/0xc50
[49995.708361] schedule+0x5b/0xc0
[49995.711515] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.716368] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.721309] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.725737] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.730415] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.734923] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.739873] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.745243] ? lock_release+0x1cd/0x2a0
[49995.749092] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.754025] iomap_dio_complete+0x45/0x130
[49995.758132] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.762845] iomap_dio_complete_work+0x17/0x30
[49995.767293] process_one_work+0x26e/0x560
[49995.771313] worker_thread+0x52/0x3b0
[49995.774986] ? process_one_work+0x560/0x560
[49995.779173] kthread+0x12c/0x150
[49995.782415] ? __kthread_bind_mask+0x60/0x60
[49995.786703] ret_from_fork+0x22/0x30
[49995.790286] task:kworker/3:215 state:D stack: 0 pid:207038 ppid: 2 flags:0x00004000
[49995.798724] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.803958] Call Trace:
[49995.806412] __schedule+0x38b/0xc50
[49995.809913] schedule+0x5b/0xc0
[49995.813065] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.817938] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.822895] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.827314] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.832011] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.836518] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.841474] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.846840] ? lock_release+0x1cd/0x2a0
[49995.850688] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.855629] iomap_dio_complete+0x45/0x130
[49995.859735] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.864440] iomap_dio_complete_work+0x17/0x30
[49995.868888] process_one_work+0x26e/0x560
[49995.872908] worker_thread+0x52/0x3b0
[49995.876573] ? process_one_work+0x560/0x560
[49995.880761] kthread+0x12c/0x150
[49995.884002] ? __kthread_bind_mask+0x60/0x60
[49995.888281] ret_from_fork+0x22/0x30
[49995.891867] task:kworker/5:238 state:D stack: 0 pid:207109 ppid: 2 flags:0x00004000
[49995.900313] Workqueue: dio/dm-5 iomap_dio_complete_work
[49995.905555] Call Trace:
[49995.908008] __schedule+0x38b/0xc50
[49995.911509] schedule+0x5b/0xc0
[49995.914662] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49995.919517] xlog_grant_head_check+0xd6/0x130 [xfs]
[49995.924464] xfs_log_reserve+0xf6/0x310 [xfs]
[49995.928885] xfs_trans_reserve+0x17f/0x250 [xfs]
[49995.933564] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49995.938071] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49995.943009] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49995.948376] ? lock_release+0x1cd/0x2a0
[49995.952231] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49995.957164] iomap_dio_complete+0x45/0x130
[49995.961271] ? aio_poll_complete_work+0x1b0/0x1b0
[49995.965985] iomap_dio_complete_work+0x17/0x30
[49995.970429] process_one_work+0x26e/0x560
[49995.974443] worker_thread+0x52/0x3b0
[49995.978107] ? process_one_work+0x560/0x560
[49995.982296] kthread+0x12c/0x150
[49995.985536] ? __kthread_bind_mask+0x60/0x60
[49995.989817] ret_from_fork+0x22/0x30
[49995.993418] task:kworker/u161:6 state:D stack: 0 pid:207192 ppid: 2 flags:0x00004000
[49996.001855] Workqueue: xfs-cil/dm-5 xlog_cil_push_work [xfs]
[49996.007574] Call Trace:
[49996.010027] __schedule+0x38b/0xc50
[49996.013527] ? lock_release+0x1cd/0x2a0
[49996.017377] schedule+0x5b/0xc0
[49996.020529] xlog_state_get_iclog_space+0x167/0x340 [xfs]
[49996.025989] ? wake_up_q+0xa0/0xa0
[49996.029397] xlog_write+0x159/0xa10 [xfs]
[49996.033479] xlog_cil_push_work+0x2dd/0x630 [xfs]
[49996.038264] ? lock_acquire+0x15d/0x380
[49996.042111] ? lock_release+0x1cd/0x2a0
[49996.045958] ? lock_acquire+0x15d/0x380
[49996.049805] ? lock_release+0x1cd/0x2a0
[49996.053651] ? finish_task_switch.isra.0+0xa0/0x2c0
[49996.058551] process_one_work+0x26e/0x560
[49996.062570] worker_thread+0x52/0x3b0
[49996.066238] ? process_one_work+0x560/0x560
[49996.070431] kthread+0x12c/0x150
[49996.073673] ? __kthread_bind_mask+0x60/0x60
[49996.077954] ret_from_fork+0x22/0x30
[49996.081549] task:kworker/15:227 state:D stack: 0 pid:217952 ppid: 2 flags:0x00004000
[49996.089984] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.095219] Call Trace:
[49996.097679] __schedule+0x38b/0xc50
[49996.101179] schedule+0x5b/0xc0
[49996.104324] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.109196] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.114135] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.118554] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.123235] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.127760] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.132701] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.138073] ? lock_release+0x1cd/0x2a0
[49996.141939] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.146894] iomap_dio_complete+0x45/0x130
[49996.150994] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.155708] iomap_dio_complete_work+0x17/0x30
[49996.160171] process_one_work+0x26e/0x560
[49996.164186] worker_thread+0x52/0x3b0
[49996.167856] ? process_one_work+0x560/0x560
[49996.172044] kthread+0x12c/0x150
[49996.175277] ? __kthread_bind_mask+0x60/0x60
[49996.179549] ret_from_fork+0x22/0x30
[49996.183134] task:kworker/15:246 state:D stack: 0 pid:217971 ppid: 2 flags:0x00004000
[49996.191570] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.196804] Call Trace:
[49996.199258] __schedule+0x38b/0xc50
[49996.202758] schedule+0x5b/0xc0
[49996.205903] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.210774] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.215716] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.220135] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.224814] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.229320] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.234259] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.239624] ? lock_release+0x1cd/0x2a0
[49996.243464] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.248394] iomap_dio_complete+0x45/0x130
[49996.252494] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.257207] iomap_dio_complete_work+0x17/0x30
[49996.261663] process_one_work+0x26e/0x560
[49996.265676] worker_thread+0x52/0x3b0
[49996.269341] ? process_one_work+0x560/0x560
[49996.273528] kthread+0x12c/0x150
[49996.276769] ? __kthread_bind_mask+0x60/0x60
[49996.281049] ret_from_fork+0x22/0x30
[49996.284643] task:kworker/7:233 state:D stack: 0 pid:218016 ppid: 2 flags:0x00004000
[49996.293096] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.298330] Call Trace:
[49996.300783] __schedule+0x38b/0xc50
[49996.304284] schedule+0x5b/0xc0
[49996.307429] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.312300] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.317251] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.321686] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.326366] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.330872] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.335831] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.341210] ? lock_release+0x1cd/0x2a0
[49996.345052] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.349991] iomap_dio_complete+0x45/0x130
[49996.354107] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.358814] iomap_dio_complete_work+0x17/0x30
[49996.363278] process_one_work+0x26e/0x560
[49996.367299] worker_thread+0x52/0x3b0
[49996.370971] ? process_one_work+0x560/0x560
[49996.375157] kthread+0x12c/0x150
[49996.378391] ? __kthread_bind_mask+0x60/0x60
[49996.382671] ret_from_fork+0x22/0x30
[49996.386298] task:kworker/13:9 state:D stack: 0 pid:233919 ppid: 2 flags:0x00004000
[49996.394735] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.399960] Call Trace:
[49996.402421] __schedule+0x38b/0xc50
[49996.405915] schedule+0x5b/0xc0
[49996.409070] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.413940] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.418897] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.423318] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.427998] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.432519] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.437461] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.442852] ? lock_release+0x1cd/0x2a0
[49996.446698] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.451638] iomap_dio_complete+0x45/0x130
[49996.455737] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.460443] iomap_dio_complete_work+0x17/0x30
[49996.464889] process_one_work+0x26e/0x560
[49996.468903] worker_thread+0x52/0x3b0
[49996.472576] ? process_one_work+0x560/0x560
[49996.476762] kthread+0x12c/0x150
[49996.480002] ? __kthread_bind_mask+0x60/0x60
[49996.484283] ret_from_fork+0x22/0x30
[49996.487868] task:kworker/13:20 state:D stack: 0 pid:233924 ppid: 2 flags:0x00004000
[49996.496303] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.501530] Call Trace:
[49996.503982] __schedule+0x38b/0xc50
[49996.507476] schedule+0x5b/0xc0
[49996.510629] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.515484] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.520440] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.524877] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.529557] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.534083] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.539022] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.544393] ? lock_release+0x1cd/0x2a0
[49996.548244] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.553173] iomap_dio_complete+0x45/0x130
[49996.557271] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.561978] iomap_dio_complete_work+0x17/0x30
[49996.566432] process_one_work+0x26e/0x560
[49996.570447] worker_thread+0x52/0x3b0
[49996.574120] ? process_one_work+0x560/0x560
[49996.578305] kthread+0x12c/0x150
[49996.581537] ? __kthread_bind_mask+0x60/0x60
[49996.585810] ret_from_fork+0x22/0x30
[49996.589415] task:kworker/5:2 state:D stack: 0 pid:236035 ppid: 2 flags:0x00004000
[49996.597848] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.603082] Call Trace:
[49996.605536] __schedule+0x38b/0xc50
[49996.609055] schedule+0x5b/0xc0
[49996.612208] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.617081] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.622019] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.626440] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.631125] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.635644] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.640591] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.645965] ? lock_release+0x1cd/0x2a0
[49996.649811] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.654741] iomap_dio_complete+0x45/0x130
[49996.658842] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.663548] iomap_dio_complete_work+0x17/0x30
[49996.668001] process_one_work+0x26e/0x560
[49996.672025] worker_thread+0x52/0x3b0
[49996.675697] ? process_one_work+0x560/0x560
[49996.679892] kthread+0x12c/0x150
[49996.683125] ? __kthread_bind_mask+0x60/0x60
[49996.687406] ret_from_fork+0x22/0x30
[49996.690999] task:kworker/5:4 state:D stack: 0 pid:236036 ppid: 2 flags:0x00004000
[49996.699434] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.704676] Call Trace:
[49996.707131] __schedule+0x38b/0xc50
[49996.710623] schedule+0x5b/0xc0
[49996.713778] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.718636] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.723571] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.728009] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.732706] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.737230] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.742186] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.747551] ? lock_release+0x1cd/0x2a0
[49996.751416] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.756346] iomap_dio_complete+0x45/0x130
[49996.760465] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.765177] iomap_dio_complete_work+0x17/0x30
[49996.769632] process_one_work+0x26e/0x560
[49996.773645] worker_thread+0x52/0x3b0
[49996.777321] ? process_one_work+0x560/0x560
[49996.781513] kthread+0x12c/0x150
[49996.784753] ? __kthread_bind_mask+0x60/0x60
[49996.789037] ret_from_fork+0x22/0x30
[49996.792630] task:kworker/5:33 state:D stack: 0 pid:236092 ppid: 2 flags:0x00004000
[49996.801090] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.806317] Call Trace:
[49996.808770] __schedule+0x38b/0xc50
[49996.812271] schedule+0x5b/0xc0
[49996.815425] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.820279] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.825218] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.829637] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.834327] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.838852] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.843790] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.849162] ? lock_release+0x1cd/0x2a0
[49996.853012] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.857959] iomap_dio_complete+0x45/0x130
[49996.862057] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.866763] iomap_dio_complete_work+0x17/0x30
[49996.871229] process_one_work+0x26e/0x560
[49996.875251] worker_thread+0x52/0x3b0
[49996.878923] ? process_one_work+0x560/0x560
[49996.883115] kthread+0x12c/0x150
[49996.886350] ? __kthread_bind_mask+0x60/0x60
[49996.890632] ret_from_fork+0x22/0x30
[49996.894219] task:kworker/15:6 state:D stack: 0 pid:236132 ppid: 2 flags:0x00004000
[49996.902652] Workqueue: dio/dm-5 iomap_dio_complete_work
[49996.907886] Call Trace:
[49996.910341] __schedule+0x38b/0xc50
[49996.913840] schedule+0x5b/0xc0
[49996.916985] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49996.921859] xlog_grant_head_check+0xd6/0x130 [xfs]
[49996.926798] xfs_log_reserve+0xf6/0x310 [xfs]
[49996.931217] xfs_trans_reserve+0x17f/0x250 [xfs]
[49996.935897] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49996.940404] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49996.945345] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49996.950717] ? lock_release+0x1cd/0x2a0
[49996.954573] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49996.959512] iomap_dio_complete+0x45/0x130
[49996.963620] ? aio_poll_complete_work+0x1b0/0x1b0
[49996.968344] iomap_dio_complete_work+0x17/0x30
[49996.972798] process_one_work+0x26e/0x560
[49996.976812] worker_thread+0x52/0x3b0
[49996.980486] ? process_one_work+0x560/0x560
[49996.984679] kthread+0x12c/0x150
[49996.987913] ? __kthread_bind_mask+0x60/0x60
[49996.992193] ret_from_fork+0x22/0x30
[49996.995805] task:kworker/5:91 state:D stack: 0 pid:236160 ppid: 2 flags:0x00004000
[49997.004258] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.009491] Call Trace:
[49997.011952] __schedule+0x38b/0xc50
[49997.015444] schedule+0x5b/0xc0
[49997.018591] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.023462] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.028411] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.032830] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.037509] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.042034] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.046983] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.052355] ? lock_release+0x1cd/0x2a0
[49997.056211] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.061144] iomap_dio_complete+0x45/0x130
[49997.065249] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.069958] iomap_dio_complete_work+0x17/0x30
[49997.074410] process_one_work+0x26e/0x560
[49997.078423] worker_thread+0x52/0x3b0
[49997.082090] ? process_one_work+0x560/0x560
[49997.086282] kthread+0x12c/0x150
[49997.089515] ? __kthread_bind_mask+0x60/0x60
[49997.093798] ret_from_fork+0x22/0x30
[49997.097392] task:kworker/5:121 state:D stack: 0 pid:236171 ppid: 2 flags:0x00004000
[49997.105835] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.111059] Call Trace:
[49997.113513] __schedule+0x38b/0xc50
[49997.117013] schedule+0x5b/0xc0
[49997.120159] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.125034] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.129969] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.134391] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.139069] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.143577] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.148518] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.153890] ? lock_release+0x1cd/0x2a0
[49997.157738] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.162670] iomap_dio_complete+0x45/0x130
[49997.166776] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.171482] iomap_dio_complete_work+0x17/0x30
[49997.175937] process_one_work+0x26e/0x560
[49997.179951] worker_thread+0x52/0x3b0
[49997.183622] ? process_one_work+0x560/0x560
[49997.187827] kthread+0x12c/0x150
[49997.191060] ? __kthread_bind_mask+0x60/0x60
[49997.195341] ret_from_fork+0x22/0x30
[49997.198951] task:kworker/13:42 state:D stack: 0 pid:238670 ppid: 2 flags:0x00004000
[49997.207386] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.212611] Call Trace:
[49997.215066] __schedule+0x38b/0xc50
[49997.218565] schedule+0x5b/0xc0
[49997.221711] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.226566] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.231522] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.235971] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.240664] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.245174] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.250138] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.255511] ? lock_release+0x1cd/0x2a0
[49997.259358] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.264292] iomap_dio_complete+0x45/0x130
[49997.268398] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.273114] iomap_dio_complete_work+0x17/0x30
[49997.277566] process_one_work+0x26e/0x560
[49997.281581] worker_thread+0x52/0x3b0
[49997.285254] ? process_one_work+0x560/0x560
[49997.289440] kthread+0x12c/0x150
[49997.292682] ? __kthread_bind_mask+0x60/0x60
[49997.296961] ret_from_fork+0x22/0x30
[49997.300564] task:kworker/0:50 state:D stack: 0 pid:238736 ppid: 2 flags:0x00004000
[49997.308999] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.314226] Call Trace:
[49997.316679] __schedule+0x38b/0xc50
[49997.320179] schedule+0x5b/0xc0
[49997.323324] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.328179] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.333137] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.337555] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.342234] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.346760] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.346819] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.357027] ? lock_release+0x1cd/0x2a0
[49997.360868] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.365816] iomap_dio_complete+0x45/0x130
[49997.369917] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.374639] iomap_dio_complete_work+0x17/0x30
[49997.379111] process_one_work+0x26e/0x560
[49997.383123] worker_thread+0x52/0x3b0
[49997.386788] ? process_one_work+0x560/0x560
[49997.390976] kthread+0x12c/0x150
[49997.394216] ? __kthread_bind_mask+0x60/0x60
[49997.398487] ret_from_fork+0x22/0x30
[49997.402072] task:kworker/0:80 state:D stack: 0 pid:238737 ppid: 2 flags:0x00004000
[49997.410508] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.415741] Call Trace:
[49997.418205] __schedule+0x38b/0xc50
[49997.421707] schedule+0x5b/0xc0
[49997.424861] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.429729] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.434671] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.439091] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.443770] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.448276] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.453226] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.458598] ? lock_release+0x1cd/0x2a0
[49997.462464] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.467394] iomap_dio_complete+0x45/0x130
[49997.471503] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.476216] iomap_dio_complete_work+0x17/0x30
[49997.480662] process_one_work+0x26e/0x560
[49997.484677] worker_thread+0x52/0x3b0
[49997.488350] ? process_one_work+0x560/0x560
[49997.492545] kthread+0x12c/0x150
[49997.495784] ? __kthread_bind_mask+0x60/0x60
[49997.500067] ret_from_fork+0x22/0x30
[49997.503664] task:kworker/17:75 state:D stack: 0 pid:240948 ppid: 2 flags:0x00004000
[49997.512122] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.517355] Call Trace:
[49997.519809] __schedule+0x38b/0xc50
[49997.523320] schedule+0x5b/0xc0
[49997.526472] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.531326] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.536265] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.540703] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.545383] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.549891] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.554848] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.560229] ? lock_release+0x1cd/0x2a0
[49997.564078] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.569015] iomap_dio_complete+0x45/0x130
[49997.573116] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.577830] iomap_dio_complete_work+0x17/0x30
[49997.582274] process_one_work+0x26e/0x560
[49997.586291] worker_thread+0x52/0x3b0
[49997.589964] ? process_one_work+0x560/0x560
[49997.594157] kthread+0x12c/0x150
[49997.597416] ? __kthread_bind_mask+0x60/0x60
[49997.601697] ret_from_fork+0x22/0x30
[49997.605286] task:kworker/13:75 state:D stack: 0 pid:241028 ppid: 2 flags:0x00004000
[49997.613727] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.618977] Call Trace:
[49997.621430] __schedule+0x38b/0xc50
[49997.624925] schedule+0x5b/0xc0
[49997.628077] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.632931] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.637872] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.642292] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.646970] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.651478] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.656426] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.661799] ? lock_release+0x1cd/0x2a0
[49997.665645] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.670577] iomap_dio_complete+0x45/0x130
[49997.674684] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.679390] iomap_dio_complete_work+0x17/0x30
[49997.683835] process_one_work+0x26e/0x560
[49997.687850] worker_thread+0x52/0x3b0
[49997.691522] ? process_one_work+0x560/0x560
[49997.695711] kthread+0x12c/0x150
[49997.698952] ? __kthread_bind_mask+0x60/0x60
[49997.703231] ret_from_fork+0x22/0x30
[49997.706816] task:kworker/13:76 state:D stack: 0 pid:241029 ppid: 2 flags:0x00004000
[49997.715262] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.720495] Call Trace:
[49997.722948] __schedule+0x38b/0xc50
[49997.726449] schedule+0x5b/0xc0
[49997.729595] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.734447] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.739413] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.743835] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.748514] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.753022] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.757995] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.763369] ? lock_release+0x1cd/0x2a0
[49997.767217] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.772155] iomap_dio_complete+0x45/0x130
[49997.776254] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.780960] iomap_dio_complete_work+0x17/0x30
[49997.785406] process_one_work+0x26e/0x560
[49997.789419] worker_thread+0x52/0x3b0
[49997.793084] ? process_one_work+0x560/0x560
[49997.797269] kthread+0x12c/0x150
[49997.800511] ? __kthread_bind_mask+0x60/0x60
[49997.804793] ret_from_fork+0x22/0x30
[49997.808394] task:kworker/13:100 state:D stack: 0 pid:241043 ppid: 2 flags:0x00004000
[49997.816830] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.822056] Call Trace:
[49997.824510] __schedule+0x38b/0xc50
[49997.828011] schedule+0x5b/0xc0
[49997.831162] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.836018] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.840966] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.845387] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.850067] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.854589] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.859538] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.864902] ? lock_release+0x1cd/0x2a0
[49997.868741] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.873680] iomap_dio_complete+0x45/0x130
[49997.877781] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.882506] iomap_dio_complete_work+0x17/0x30
[49997.886957] process_one_work+0x26e/0x560
[49997.890971] worker_thread+0x52/0x3b0
[49997.894636] ? process_one_work+0x560/0x560
[49997.898831] kthread+0x12c/0x150
[49997.902064] ? __kthread_bind_mask+0x60/0x60
[49997.906346] ret_from_fork+0x22/0x30
[49997.909940] task:kworker/13:103 state:D stack: 0 pid:241046 ppid: 2 flags:0x00004000
[49997.918389] Workqueue: dio/dm-5 iomap_dio_complete_work
[49997.923616] Call Trace:
[49997.926070] __schedule+0x38b/0xc50
[49997.929564] schedule+0x5b/0xc0
[49997.932724] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49997.937578] xlog_grant_head_check+0xd6/0x130 [xfs]
[49997.942527] xfs_log_reserve+0xf6/0x310 [xfs]
[49997.946948] xfs_trans_reserve+0x17f/0x250 [xfs]
[49997.951628] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49997.956135] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49997.961073] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49997.966447] ? lock_release+0x1cd/0x2a0
[49997.970294] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49997.975226] iomap_dio_complete+0x45/0x130
[49997.979333] ? aio_poll_complete_work+0x1b0/0x1b0
[49997.984049] iomap_dio_complete_work+0x17/0x30
[49997.988501] process_one_work+0x26e/0x560
[49997.992514] worker_thread+0x52/0x3b0
[49997.996181] ? process_one_work+0x560/0x560
[49998.000366] kthread+0x12c/0x150
[49998.003606] ? __kthread_bind_mask+0x60/0x60
[49998.007880] ret_from_fork+0x22/0x30
[49998.011472] task:kworker/13:104 state:D stack: 0 pid:241047 ppid: 2 flags:0x00004000
[49998.019908] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.025134] Call Trace:
[49998.027587] __schedule+0x38b/0xc50
[49998.031089] schedule+0x5b/0xc0
[49998.034243] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.039097] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.044038] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.048455] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.053135] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.057642] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.062583] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.067954] ? lock_release+0x1cd/0x2a0
[49998.071793] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.076727] iomap_dio_complete+0x45/0x130
[49998.080833] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.085539] iomap_dio_complete_work+0x17/0x30
[49998.089984] process_one_work+0x26e/0x560
[49998.093999] worker_thread+0x52/0x3b0
[49998.097671] ? process_one_work+0x560/0x560
[49998.101861] kthread+0x12c/0x150
[49998.105098] ? __kthread_bind_mask+0x60/0x60
[49998.109371] ret_from_fork+0x22/0x30
[49998.112979] task:kworker/15:78 state:D stack: 0 pid:243659 ppid: 2 flags:0x00004000
[49998.121418] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.126653] Call Trace:
[49998.129106] __schedule+0x38b/0xc50
[49998.132607] schedule+0x5b/0xc0
[49998.135759] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.140620] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.145561] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.149983] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.154660] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.159170] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.164108] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.169484] ? lock_release+0x1cd/0x2a0
[49998.173330] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.178271] iomap_dio_complete+0x45/0x130
[49998.182377] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.187091] iomap_dio_complete_work+0x17/0x30
[49998.191537] process_one_work+0x26e/0x560
[49998.195551] worker_thread+0x52/0x3b0
[49998.199224] ? process_one_work+0x560/0x560
[49998.203409] kthread+0x12c/0x150
[49998.206643] ? __kthread_bind_mask+0x60/0x60
[49998.210926] ret_from_fork+0x22/0x30
[49998.214528] task:kworker/13:155 state:D stack: 0 pid:246216 ppid: 2 flags:0x00004000
[49998.222960] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.228187] Call Trace:
[49998.230641] __schedule+0x38b/0xc50
[49998.234141] schedule+0x5b/0xc0
[49998.237287] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.242157] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.247096] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.251516] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.256196] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.260705] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.265643] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.271016] ? lock_release+0x1cd/0x2a0
[49998.274856] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.279796] iomap_dio_complete+0x45/0x130
[49998.283902] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.288610] iomap_dio_complete_work+0x17/0x30
[49998.293064] process_one_work+0x26e/0x560
[49998.297087] worker_thread+0x52/0x3b0
[49998.300759] ? process_one_work+0x560/0x560
[49998.304944] kthread+0x12c/0x150
[49998.308179] ? __kthread_bind_mask+0x60/0x60
[49998.312459] ret_from_fork+0x22/0x30
[49998.316055] task:kworker/17:80 state:D stack: 0 pid:248320 ppid: 2 flags:0x00004000
[49998.324499] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.329731] Call Trace:
[49998.332185] __schedule+0x38b/0xc50
[49998.335685] schedule+0x5b/0xc0
[49998.338830] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.343682] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.348624] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.353042] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.357723] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.362230] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.367170] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.372543] ? lock_release+0x1cd/0x2a0
[49998.376390] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.381321] iomap_dio_complete+0x45/0x130
[49998.385421] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.390137] iomap_dio_complete_work+0x17/0x30
[49998.394590] process_one_work+0x26e/0x560
[49998.398602] worker_thread+0x52/0x3b0
[49998.402269] ? process_one_work+0x560/0x560
[49998.406463] kthread+0x12c/0x150
[49998.409703] ? __kthread_bind_mask+0x60/0x60
[49998.413977] ret_from_fork+0x22/0x30
[49998.417570] task:kworker/13:164 state:D stack: 0 pid:248334 ppid: 2 flags:0x00004000
[49998.426005] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.431232] Call Trace:
[49998.433684] __schedule+0x38b/0xc50
[49998.437176] schedule+0x5b/0xc0
[49998.440321] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.445176] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.450116] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.454535] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.459215] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.463720] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.468661] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.474035] ? lock_release+0x1cd/0x2a0
[49998.477883] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.482824] iomap_dio_complete+0x45/0x130
[49998.486929] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.491636] iomap_dio_complete_work+0x17/0x30
[49998.496091] process_one_work+0x26e/0x560
[49998.500113] worker_thread+0x52/0x3b0
[49998.503785] ? process_one_work+0x560/0x560
[49998.507972] kthread+0x12c/0x150
[49998.511212] ? __kthread_bind_mask+0x60/0x60
[49998.515486] ret_from_fork+0x22/0x30
[49998.519086] task:kworker/3:98 state:D stack: 0 pid:250612 ppid: 2 flags:0x00004000
[49998.527522] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.532748] Call Trace:
[49998.535203] __schedule+0x38b/0xc50
[49998.538704] schedule+0x5b/0xc0
[49998.541858] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.546710] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.551649] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.556070] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.560749] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.565256] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.570196] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.575569] ? lock_release+0x1cd/0x2a0
[49998.579409] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.584349] iomap_dio_complete+0x45/0x130
[49998.588455] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.593160] iomap_dio_complete_work+0x17/0x30
[49998.597610] process_one_work+0x26e/0x560
[49998.601631] worker_thread+0x52/0x3b0
[49998.605304] ? process_one_work+0x560/0x560
[49998.609498] kthread+0x12c/0x150
[49998.612738] ? __kthread_bind_mask+0x60/0x60
[49998.617012] ret_from_fork+0x22/0x30
[49998.620606] task:kworker/7:91 state:D stack: 0 pid:250623 ppid: 2 flags:0x00004000
[49998.629042] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.634275] Call Trace:
[49998.636729] __schedule+0x38b/0xc50
[49998.640229] schedule+0x5b/0xc0
[49998.643384] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.648238] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.653176] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.657597] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.662275] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.666783] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.671721] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.677093] ? lock_release+0x1cd/0x2a0
[49998.680935] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.685876] iomap_dio_complete+0x45/0x130
[49998.689982] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.694688] iomap_dio_complete_work+0x17/0x30
[49998.699133] process_one_work+0x26e/0x560
[49998.703148] worker_thread+0x52/0x3b0
[49998.706820] ? process_one_work+0x560/0x560
[49998.711005] kthread+0x12c/0x150
[49998.714239] ? __kthread_bind_mask+0x60/0x60
[49998.718513] ret_from_fork+0x22/0x30
[49998.722134] task:kworker/39:104 state:D stack: 0 pid:256748 ppid: 2 flags:0x00004000
[49998.730567] Workqueue: xfs-sync/dm-5 xfs_log_worker [xfs]
[49998.736027] Call Trace:
[49998.738478] __schedule+0x38b/0xc50
[49998.741973] schedule+0x5b/0xc0
[49998.745127] schedule_timeout+0x15e/0x1d0
[49998.749148] ? __mutex_lock+0x6b/0x740
[49998.752910] ? flush_workqueue+0xb6/0x590
[49998.756930] ? flush_workqueue+0xb6/0x590
[49998.760950] ? lock_release+0x1cd/0x2a0
[49998.764790] ? trace_hardirqs_on+0x1b/0xd0
[49998.768899] wait_for_completion+0x79/0xc0
[49998.773006] flush_workqueue+0x1b0/0x590
[49998.776932] ? verify_cpu+0xf0/0x100
[49998.780521] xlog_cil_push_now+0xc4/0x100 [xfs]
[49998.785113] xlog_cil_force_seq+0x86/0x2b0 [xfs]
[49998.789792] ? lock_release+0x1cd/0x2a0
[49998.793632] xfs_log_force+0x91/0x230 [xfs]
[49998.797878] xfs_log_worker+0x35/0x80 [xfs]
[49998.802125] process_one_work+0x26e/0x560
[49998.806148] worker_thread+0x52/0x3b0
[49998.809819] ? process_one_work+0x560/0x560
[49998.814008] kthread+0x12c/0x150
[49998.817248] ? __kthread_bind_mask+0x60/0x60
[49998.821528] ret_from_fork+0x22/0x30
[49998.825136] task:kworker/7:122 state:D stack: 0 pid:261263 ppid: 2 flags:0x00004000
[49998.833575] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.838799] Call Trace:
[49998.841254] __schedule+0x38b/0xc50
[49998.844755] schedule+0x5b/0xc0
[49998.847901] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.852754] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.857693] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.862112] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.866794] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.871300] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.876239] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.881615] ? lock_release+0x1cd/0x2a0
[49998.885462] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.890401] iomap_dio_complete+0x45/0x130
[49998.894508] ? aio_poll_complete_work+0x1b0/0x1b0
[49998.899221] iomap_dio_complete_work+0x17/0x30
[49998.903667] process_one_work+0x26e/0x560
[49998.907680] worker_thread+0x52/0x3b0
[49998.911347] ? process_one_work+0x560/0x560
[49998.915531] kthread+0x12c/0x150
[49998.918764] ? __kthread_bind_mask+0x60/0x60
[49998.923037] ret_from_fork+0x22/0x30
[49998.926623] task:kworker/7:165 state:D stack: 0 pid:261283 ppid: 2 flags:0x00004000
[49998.935059] Workqueue: dio/dm-5 iomap_dio_complete_work
[49998.940293] Call Trace:
[49998.942746] __schedule+0x38b/0xc50
[49998.946248] schedule+0x5b/0xc0
[49998.949402] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49998.954252] xlog_grant_head_check+0xd6/0x130 [xfs]
[49998.959194] xfs_log_reserve+0xf6/0x310 [xfs]
[49998.963614] xfs_trans_reserve+0x17f/0x250 [xfs]
[49998.968294] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49998.972801] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49998.977739] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49998.983110] ? lock_release+0x1cd/0x2a0
[49998.986953] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49998.991892] iomap_dio_complete+0x45/0x130
[49998.995991] ? aio_poll_complete_work+0x1b0/0x1b0
[49999.000704] iomap_dio_complete_work+0x17/0x30
[49999.005152] process_one_work+0x26e/0x560
[49999.009174] worker_thread+0x52/0x3b0
[49999.012848] ? process_one_work+0x560/0x560
[49999.017042] kthread+0x12c/0x150
[49999.020282] ? __kthread_bind_mask+0x60/0x60
[49999.024556] ret_from_fork+0x22/0x30
[49999.028147] task:kworker/7:168 state:D stack: 0 pid:261286 ppid: 2 flags:0x00004000
[49999.036585] Workqueue: dio/dm-5 iomap_dio_complete_work
[49999.041818] Call Trace:
[49999.044273] __schedule+0x38b/0xc50
[49999.047773] schedule+0x5b/0xc0
[49999.050926] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49999.055779] xlog_grant_head_check+0xd6/0x130 [xfs]
[49999.060720] xfs_log_reserve+0xf6/0x310 [xfs]
[49999.065139] xfs_trans_reserve+0x17f/0x250 [xfs]
[49999.069821] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49999.074327] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49999.079267] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49999.084638] ? lock_release+0x1cd/0x2a0
[49999.088478] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49999.093409] iomap_dio_complete+0x45/0x130
[49999.097509] ? aio_poll_complete_work+0x1b0/0x1b0
[49999.102225] iomap_dio_complete_work+0x17/0x30
[49999.106677] process_one_work+0x26e/0x560
[49999.110691] worker_thread+0x52/0x3b0
[49999.114364] ? process_one_work+0x560/0x560
[49999.118551] kthread+0x12c/0x150
[49999.121790] ? __kthread_bind_mask+0x60/0x60
[49999.126064] ret_from_fork+0x22/0x30
[49999.129659] task:kworker/7:179 state:D stack: 0 pid:263472 ppid: 2 flags:0x00004000
[49999.138095] Workqueue: dio/dm-5 iomap_dio_complete_work
[49999.143326] Call Trace:
[49999.145781] __schedule+0x38b/0xc50
[49999.149281] schedule+0x5b/0xc0
[49999.152426] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49999.157280] xlog_grant_head_check+0xd6/0x130 [xfs]
[49999.162219] xfs_log_reserve+0xf6/0x310 [xfs]
[49999.166640] xfs_trans_reserve+0x17f/0x250 [xfs]
[49999.171320] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49999.175826] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49999.180767] xfs_iomap_write_unwritten+0x129/0x330 [xfs]
[49999.186139] ? lock_release+0x1cd/0x2a0
[49999.189979] xfs_dio_write_end_io+0x203/0x250 [xfs]
[49999.194919] iomap_dio_complete+0x45/0x130
[49999.199025] ? aio_poll_complete_work+0x1b0/0x1b0
[49999.203734] iomap_dio_complete_work+0x17/0x30
[49999.208184] process_one_work+0x26e/0x560
[49999.212199] worker_thread+0x52/0x3b0
[49999.215866] ? process_one_work+0x560/0x560
[49999.220060] kthread+0x12c/0x150
[49999.223301] ? __kthread_bind_mask+0x60/0x60
[49999.227582] ret_from_fork+0x22/0x30
[49999.231223] task:xfsaild/dm-5 state:D stack: 0 pid:267879 ppid: 2 flags:0x00004000
[49999.239662] Call Trace:
[49999.242116] __schedule+0x38b/0xc50
[49999.245615] ? list_sort+0x1f7/0x270
[49999.249203] schedule+0x5b/0xc0
[49999.252351] schedule_timeout+0xb6/0x1d0
[49999.256285] ? xfs_buf_delwri_submit_buffers+0x253/0x290 [xfs]
[49999.262169] ? __bpf_trace_tick_stop+0x10/0x10
[49999.266626] xfsaild+0x55f/0xbe0 [xfs]
[49999.270448] ? lock_release+0x1cd/0x2a0
[49999.274293] ? _raw_spin_unlock_irqrestore+0x37/0x40
[49999.279260] ? xfs_trans_ail_cursor_first+0x80/0x80 [xfs]
[49999.284719] kthread+0x12c/0x150
[49999.287959] ? __kthread_bind_mask+0x60/0x60
[49999.292233] ret_from_fork+0x22/0x30
[49999.295829] task:fsstress state:D stack: 0 pid:267885 ppid:267881 flags:0x00004000
[49999.304262] Call Trace:
[49999.306716] __schedule+0x38b/0xc50
[49999.310215] schedule+0x5b/0xc0
[49999.313360] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49999.318215] xlog_grant_head_check+0xd6/0x130 [xfs]
[49999.323155] xfs_log_reserve+0xf6/0x310 [xfs]
[49999.327572] ? lock_release+0x1cd/0x2a0
[49999.331414] xfs_trans_reserve+0x17f/0x250 [xfs]
[49999.336095] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49999.340600] xfs_setattr_size+0x1a2/0x540 [xfs]
[49999.345193] xfs_ioc_space+0x1b9/0x260 [xfs]
[49999.349529] xfs_file_ioctl+0x2d7/0xde0 [xfs]
[49999.353947] ? _copy_to_user+0x42/0x50
[49999.357708] ? cp_new_stat+0x147/0x160
[49999.361470] ? selinux_file_ioctl+0x12f/0x1d0
[49999.365836] __x64_sys_ioctl+0x83/0xb0
[49999.369596] do_syscall_64+0x40/0x80
[49999.373186] entry_SYSCALL_64_after_hwframe+0x44/0xae
[49999.378247] RIP: 0033:0x7f41c7ae3f7b
[49999.381835] RSP: 002b:00007ffe369d4768 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[49999.389408] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f41c7ae3f7b
[49999.396540] RDX: 00007ffe369d4790 RSI: 0000000040305824 RDI: 0000000000000003
[49999.403672] RBP: 0000000000000003 R08: 0000000000000038 R09: 00007ffe369d477c
[49999.410804] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000001c2c
[49999.417937] R13: 0000000000069b8d R14: 0000000000000000 R15: 0000000000000000
[49999.425079] task:fio state:D stack: 0 pid:267969 ppid: 1 flags:0x00000000
[49999.433511] Call Trace:
[49999.435964] __schedule+0x38b/0xc50
[49999.439465] schedule+0x5b/0xc0
[49999.442610] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49999.447463] xlog_grant_head_check+0xd6/0x130 [xfs]
[49999.452404] xfs_log_reserve+0xf6/0x310 [xfs]
[49999.456824] xfs_trans_reserve+0x17f/0x250 [xfs]
[49999.461505] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49999.466013] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49999.470950] ? xfs_bmapi_read+0x14d/0x360 [xfs]
[49999.475525] xfs_iomap_write_direct+0xbe/0x230 [xfs]
[49999.480552] xfs_direct_write_iomap_begin+0x460/0x720 [xfs]
[49999.486189] iomap_apply+0x8b/0x400
[49999.489688] __iomap_dio_rw+0x1cc/0x560
[49999.493537] ? iomap_dio_rw+0x30/0x30
[49999.497210] iomap_dio_rw+0xa/0x30
[49999.500624] xfs_file_dio_write_aligned+0x9d/0x190 [xfs]
[49999.505998] ? lock_release+0x1cd/0x2a0
[49999.509844] xfs_file_write_iter+0xd2/0x120 [xfs]
[49999.514602] aio_write+0xe7/0x250
[49999.517924] ? lock_release+0x1cd/0x2a0
[49999.521769] ? lock_release+0x1cd/0x2a0
[49999.525610] ? __fget_files+0xef/0x1a0
[49999.529370] io_submit_one+0x4bc/0x880
[49999.533131] ? trace_hardirqs_on+0x1b/0xd0
[49999.537238] ? lock_acquire+0x15d/0x380
[49999.541078] ? lock_acquire+0x15d/0x380
[49999.544919] __x64_sys_io_submit+0x73/0x140
[49999.549113] ? __x64_sys_io_getevents+0x49/0xb0
[49999.553653] do_syscall_64+0x40/0x80
[49999.557232] entry_SYSCALL_64_after_hwframe+0x44/0xae
[49999.562286] RIP: 0033:0x7f83c1c17edd
[49999.565873] RSP: 002b:00007fffd4d32b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
[49999.573445] RAX: ffffffffffffffda RBX: 00007f83b7efde88 RCX: 00007f83c1c17edd
[49999.580579] RDX: 0000562e788c6b58 RSI: 0000000000000001 RDI: 00007f83b7e8f000
[49999.587713] RBP: 00007f83b7e8f000 R08: 0000000000000000 R09: 0000000000000318
[49999.594845] R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000001
[49999.601977] R13: 0000000000000000 R14: 0000562e788c6b58 R15: 0000562e788c87f0
[49999.609115] task:fio state:D stack: 0 pid:267970 ppid: 1 flags:0x00000000
[49999.617550] Call Trace:
[49999.620004] __schedule+0x38b/0xc50
[49999.623505] schedule+0x5b/0xc0
[49999.626656] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49999.631508] xlog_grant_head_check+0xd6/0x130 [xfs]
[49999.636450] xfs_log_reserve+0xf6/0x310 [xfs]
[49999.640871] xfs_trans_reserve+0x17f/0x250 [xfs]
[49999.645551] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49999.650059] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49999.654995] ? xfs_bmapi_read+0x14d/0x360 [xfs]
[49999.659574] xfs_iomap_write_direct+0xbe/0x230 [xfs]
[49999.664601] xfs_direct_write_iomap_begin+0x460/0x720 [xfs]
[49999.670236] iomap_apply+0x8b/0x400
[49999.673734] __iomap_dio_rw+0x1cc/0x560
[49999.677582] ? iomap_dio_rw+0x30/0x30
[49999.681257] iomap_dio_rw+0xa/0x30
[49999.684672] xfs_file_dio_write_aligned+0x9d/0x190 [xfs]
[49999.690041] ? lock_release+0x1cd/0x2a0
[49999.693882] xfs_file_write_iter+0xd2/0x120 [xfs]
[49999.698639] aio_write+0xe7/0x250
[49999.701962] ? lock_release+0x1cd/0x2a0
[49999.705807] ? lock_release+0x1cd/0x2a0
[49999.709648] ? __fget_files+0xef/0x1a0
[49999.713400] io_submit_one+0x4bc/0x880
[49999.717161] ? trace_hardirqs_on+0x1b/0xd0
[49999.721268] ? lock_acquire+0x15d/0x380
[49999.725108] ? lock_acquire+0x15d/0x380
[49999.728958] __x64_sys_io_submit+0x73/0x140
[49999.733149] ? __x64_sys_io_getevents+0x49/0xb0
[49999.737683] do_syscall_64+0x40/0x80
[49999.741262] entry_SYSCALL_64_after_hwframe+0x44/0xae
[49999.746313] RIP: 0033:0x7f83c1c17edd
[49999.749892] RSP: 002b:00007fffd4d32b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
[49999.757458] RAX: ffffffffffffffda RBX: 00007f83b7efde88 RCX: 00007f83c1c17edd
[49999.764591] RDX: 0000562e788c6b08 RSI: 0000000000000001 RDI: 00007f83b7e8e000
[49999.771722] RBP: 00007f83b7e8e000 R08: 0000000000000000 R09: 00000000000002c8
[49999.778855] R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000001
[49999.785987] R13: 0000000000000000 R14: 0000562e788c6b08 R15: 0000562e788c87f0
[49999.793126] task:fio state:D stack: 0 pid:267971 ppid: 1 flags:0x00004000
[49999.801561] Call Trace:
[49999.804015] __schedule+0x38b/0xc50
[49999.807508] schedule+0x5b/0xc0
[49999.810663] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49999.815522] xlog_grant_head_check+0xd6/0x130 [xfs]
[49999.820464] xfs_log_reserve+0xf6/0x310 [xfs]
[49999.824884] xfs_trans_reserve+0x17f/0x250 [xfs]
[49999.829562] xfs_trans_alloc+0x119/0x3b0 [xfs]
[49999.834071] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[49999.839010] ? xfs_bmapi_read+0x14d/0x360 [xfs]
[49999.843584] xfs_iomap_write_direct+0xbe/0x230 [xfs]
[49999.848603] xfs_direct_write_iomap_begin+0x460/0x720 [xfs]
[49999.854239] ? trace_hardirqs_on+0x1b/0xd0
[49999.858345] iomap_apply+0x8b/0x400
[49999.861838] __iomap_dio_rw+0x1cc/0x560
[49999.865684] ? iomap_dio_rw+0x30/0x30
[49999.869352] iomap_dio_rw+0xa/0x30
[49999.872766] xfs_file_dio_write_aligned+0x9d/0x190 [xfs]
[49999.878139] ? lock_release+0x1cd/0x2a0
[49999.881987] xfs_file_write_iter+0xd2/0x120 [xfs]
[49999.886752] aio_write+0xe7/0x250
[49999.890071] ? lock_release+0x1cd/0x2a0
[49999.893910] ? lock_release+0x1cd/0x2a0
[49999.897750] ? __fget_files+0xef/0x1a0
[49999.901505] io_submit_one+0x4bc/0x880
[49999.905263] ? lock_acquire+0x15d/0x380
[49999.909103] ? lock_acquire+0x15d/0x380
[49999.912943] __x64_sys_io_submit+0x73/0x140
[49999.917138] ? __x64_sys_io_getevents+0x49/0xb0
[49999.921678] do_syscall_64+0x40/0x80
[49999.925256] entry_SYSCALL_64_after_hwframe+0x44/0xae
[49999.930310] RIP: 0033:0x7f83c1c17edd
[49999.933888] RSP: 002b:00007fffd4d32b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
[49999.941455] RAX: ffffffffffffffda RBX: 00007f83b7efde88 RCX: 00007f83c1c17edd
[49999.948587] RDX: 0000562e788c6920 RSI: 0000000000000001 RDI: 00007f83b7e8d000
[49999.955718] RBP: 00007f83b7e8d000 R08: 0000000000000000 R09: 00000000000000e0
[49999.962853] R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000001
[49999.969984] R13: 0000000000000000 R14: 0000562e788c6920 R15: 0000562e788c87f0
[49999.977121] task:fio state:D stack: 0 pid:267972 ppid: 1 flags:0x00000000
[49999.985558] Call Trace:
[49999.988013] __schedule+0x38b/0xc50
[49999.991510] schedule+0x5b/0xc0
[49999.994658] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[49999.999517] xlog_grant_head_check+0xd6/0x130 [xfs]
[50000.004457] xfs_log_reserve+0xf6/0x310 [xfs]
[50000.008878] xfs_trans_reserve+0x17f/0x250 [xfs]
[50000.013560] xfs_trans_alloc+0x119/0x3b0 [xfs]
[50000.018067] xfs_trans_alloc_inode+0x5f/0x160 [xfs]
[50000.023006] ? xfs_bmapi_read+0x14d/0x360 [xfs]
[50000.027581] xfs_iomap_write_direct+0xbe/0x230 [xfs]
[50000.032607] xfs_direct_write_iomap_begin+0x460/0x720 [xfs]
[50000.038243] iomap_apply+0x8b/0x400
[50000.041745] __iomap_dio_rw+0x1cc/0x560
[50000.045590] ? iomap_dio_rw+0x30/0x30
[50000.049258] iomap_dio_rw+0xa/0x30
[50000.052670] xfs_file_dio_write_aligned+0x9d/0x190 [xfs]
[50000.058042] ? lock_release+0x1cd/0x2a0
[50000.061881] xfs_file_write_iter+0xd2/0x120 [xfs]
[50000.066639] aio_write+0xe7/0x250
[50000.069961] ? lock_release+0x1cd/0x2a0
[50000.073806] ? lock_release+0x1cd/0x2a0
[50000.077646] ? __fget_files+0xef/0x1a0
[50000.081401] io_submit_one+0x4bc/0x880
[50000.085159] ? lock_acquire+0x15d/0x380
[50000.088998] ? lock_acquire+0x15d/0x380
[50000.092839] __x64_sys_io_submit+0x73/0x140
[50000.097033] ? __x64_sys_io_getevents+0x49/0xb0
[50000.101566] do_syscall_64+0x40/0x80
[50000.105154] entry_SYSCALL_64_after_hwframe+0x44/0xae
[50000.110214] RIP: 0033:0x7f83c1c17edd
[50000.113794] RSP: 002b:00007fffd4d32b88 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1
[50000.121366] RAX: ffffffffffffffda RBX: 00007f83b7efde88 RCX: 00007f83c1c17edd
[50000.128499] RDX: 0000562e788c6b50 RSI: 0000000000000001 RDI: 00007f83b7e8c000
[50000.135633] RBP: 00007f83b7e8c000 R08: 0000000000000000 R09: 0000000000000310
[50000.142764] R10: 0000000000001000 R11: 0000000000000246 R12: 0000000000000001
[50000.149899] R13: 0000000000000000 R14: 0000562e788c6b50 R15: 0000562e788c87f0
[50000.157035] task:fio state:D stack: 0 pid:267973 ppid: 1 flags:0x00000000
[50000.165471] Call Trace:
[50000.167925] __schedule+0x38b/0xc50
[50000.171424] schedule+0x5b/0xc0
[50000.174570] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[50000.179426] xlog_grant_head_check+0xd6/0x130 [xfs]
[50000.184364] xfs_log_reserve+0xf6/0x310 [xfs]
[50000.188783] ? lock_release+0x1cd/0x2a0
[50000.192623] xfs_trans_reserve+0x17f/0x250 [xfs]
[50000.197303] xfs_trans_alloc+0x119/0x3b0 [xfs]
[50000.201811] xfs_vn_update_time+0xba/0x240 [xfs]
[50000.206489] file_update_time+0xc6/0x120
[50000.210425] __xfs_filemap_fault+0x189/0x380 [xfs]
[50000.215277] ? lock_acquire+0x15d/0x380
[50000.219116] do_page_mkwrite+0x4f/0xf0
[50000.222878] do_wp_page+0x261/0x380
[50000.226378] __handle_mm_fault+0xe30/0x14f0
[50000.230575] handle_mm_fault+0x97/0x260
[50000.234420] do_user_addr_fault+0x1d7/0x6a0
[50000.238616] exc_page_fault+0x7f/0x270
[50000.242378] ? asm_exc_page_fault+0x8/0x30
[50000.246483] asm_exc_page_fault+0x1e/0x30
[50000.250495] RIP: 0033:0x7f83c1c80f96
[50000.254076] RSP: 002b:00007fffd4d32c18 EFLAGS: 00010292
[50000.259302] RAX: 00007f836afb5000 RBX: 0000562e78894c40 RCX: 0000000000001000
[50000.266433] RDX: 0000000000001000 RSI: 0000562e788c5830 RDI: 00007f836afb5000
[50000.273565] RBP: 00007f836b2008a0 R08: 0000000000000000 R09: 0000562e788c6830
[50000.280700] R10: 0000562e788ab088 R11: 00007fffd4d32b60 R12: 0000000000000000
[50000.287839] R13: 0000000000000001 R14: 0000000000001000 R15: 0000562e78894c68
[50000.294976] task:fio state:D stack: 0 pid:267974 ppid: 1 flags:0x00000000
[50000.303414] Call Trace:
[50000.305866] __schedule+0x38b/0xc50
[50000.309360] schedule+0x5b/0xc0
[50000.312511] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[50000.317367] xlog_grant_head_check+0xd6/0x130 [xfs]
[50000.322305] xfs_log_reserve+0xf6/0x310 [xfs]
[50000.326725] ? lock_release+0x1cd/0x2a0
[50000.330565] xfs_trans_reserve+0x17f/0x250 [xfs]
[50000.335245] xfs_trans_alloc+0x119/0x3b0 [xfs]
[50000.339753] xfs_vn_update_time+0xba/0x240 [xfs]
[50000.344431] file_update_time+0xc6/0x120
[50000.348359] __xfs_filemap_fault+0x189/0x380 [xfs]
[50000.353210] ? lock_acquire+0x15d/0x380
[50000.357049] do_page_mkwrite+0x4f/0xf0
[50000.360801] do_wp_page+0x261/0x380
[50000.364295] __handle_mm_fault+0xe30/0x14f0
[50000.368488] ? lock_release+0x1cd/0x2a0
[50000.372330] handle_mm_fault+0x97/0x260
[50000.376177] do_user_addr_fault+0x1d7/0x6a0
[50000.380370] exc_page_fault+0x7f/0x270
[50000.384122] ? asm_exc_page_fault+0x8/0x30
[50000.388221] asm_exc_page_fault+0x1e/0x30
[50000.392234] RIP: 0033:0x7f83c1c80f96
[50000.395814] RSP: 002b:00007fffd4d32c18 EFLAGS: 00010292
[50000.401041] RAX: 00007f836aec9000 RBX: 0000562e78894c40 RCX: 0000000000001000
[50000.408179] RDX: 0000000000001000 RSI: 0000562e788c5830 RDI: 00007f836aec9000
[50000.415313] RBP: 00007f836b2452c8 R08: 0000000000000000 R09: 0000562e788c6830
[50000.422445] R10: 0000562e788ab068 R11: 00007fffd4d32b60 R12: 0000000000000000
[50000.429577] R13: 0000000000000001 R14: 0000000000001000 R15: 0000562e78894c68
[50000.436717] task:fio state:D stack: 0 pid:267975 ppid: 1 flags:0x00000000
[50000.445152] Call Trace:
[50000.447606] __schedule+0x38b/0xc50
[50000.451107] schedule+0x5b/0xc0
[50000.454259] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[50000.459114] xlog_grant_head_check+0xd6/0x130 [xfs]
[50000.464053] xfs_log_reserve+0xf6/0x310 [xfs]
[50000.468474] ? lock_release+0x1cd/0x2a0
[50000.472320] xfs_trans_reserve+0x17f/0x250 [xfs]
[50000.477001] xfs_trans_alloc+0x119/0x3b0 [xfs]
[50000.481507] xfs_vn_update_time+0xba/0x240 [xfs]
[50000.486188] file_update_time+0xc6/0x120
[50000.490123] __xfs_filemap_fault+0x189/0x380 [xfs]
[50000.494974] ? lock_acquire+0x15d/0x380
[50000.498814] do_page_mkwrite+0x4f/0xf0
[50000.502576] do_wp_page+0x261/0x380
[50000.506077] __handle_mm_fault+0xe30/0x14f0
[50000.510272] handle_mm_fault+0x97/0x260
[50000.514118] do_user_addr_fault+0x1d7/0x6a0
[50000.518304] exc_page_fault+0x7f/0x270
[50000.522066] ? asm_exc_page_fault+0x8/0x30
[50000.526164] asm_exc_page_fault+0x1e/0x30
[50000.530175] RIP: 0033:0x7f83c1c80f96
[50000.533757] RSP: 002b:00007fffd4d32c18 EFLAGS: 00010292
[50000.538980] RAX: 00007f836a93f000 RBX: 0000562e78894c40 RCX: 0000000000001000
[50000.546115] RDX: 0000000000001000 RSI: 0000562e788c5830 RDI: 00007f836a93f000
[50000.553247] RBP: 00007f836b289cf0 R08: 0000000000000000 R09: 0000562e788c6830
[50000.560380] R10: 0000562e788aafb8 R11: 00007fffd4d32b60 R12: 0000000000000000
[50000.567512] R13: 0000000000000001 R14: 0000000000001000 R15: 0000562e78894c68
[50000.574650] task:fio state:D stack: 0 pid:267976 ppid: 1 flags:0x00000000
[50000.583084] Call Trace:
[50000.585539] __schedule+0x38b/0xc50
[50000.589040] schedule+0x5b/0xc0
[50000.592192] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[50000.597047] xlog_grant_head_check+0xd6/0x130 [xfs]
[50000.601986] xfs_log_reserve+0xf6/0x310 [xfs]
[50000.606407] ? lock_release+0x1cd/0x2a0
[50000.610253] xfs_trans_reserve+0x17f/0x250 [xfs]
[50000.614934] xfs_trans_alloc+0x119/0x3b0 [xfs]
[50000.619440] xfs_vn_update_time+0xba/0x240 [xfs]
[50000.624121] file_update_time+0xc6/0x120
[50000.628055] __xfs_filemap_fault+0x189/0x380 [xfs]
[50000.632899] ? lock_acquire+0x15d/0x380
[50000.636740] do_page_mkwrite+0x4f/0xf0
[50000.640500] do_wp_page+0x261/0x380
[50000.643993] __handle_mm_fault+0xe30/0x14f0
[50000.648186] ? lock_release+0x1cd/0x2a0
[50000.652027] handle_mm_fault+0x97/0x260
[50000.655873] do_user_addr_fault+0x1d7/0x6a0
[50000.660059] exc_page_fault+0x7f/0x270
[50000.663811] ? asm_exc_page_fault+0x8/0x30
[50000.667910] asm_exc_page_fault+0x1e/0x30
[50000.671925] RIP: 0033:0x7f83c1c80f96
[50000.675502] RSP: 002b:00007fffd4d32c18 EFLAGS: 00010292
[50000.680729] RAX: 00007f836a8fa000 RBX: 0000562e78894c40 RCX: 0000000000001000
[50000.687862] RDX: 0000000000001000 RSI: 0000562e788c5830 RDI: 00007f836a8fa000
[50000.694994] RBP: 00007f836b2ce718 R08: 0000000000000000 R09: 0000562e788c6830
[50000.702126] R10: 0000562e788aafb0 R11: 00007fffd4d32b60 R12: 0000000000000000
[50000.709258] R13: 0000000000000001 R14: 0000000000001000 R15: 0000562e78894c68
[50000.716394] task:dd state:D stack: 0 pid:268009 ppid:267588 flags:0x00000004
[50000.724833] Call Trace:
[50000.727286] __schedule+0x38b/0xc50
[50000.730787] schedule+0x5b/0xc0
[50000.733939] xlog_grant_head_wait+0xda/0x2d0 [xfs]
[50000.738794] xlog_grant_head_check+0xd6/0x130 [xfs]
[50000.743733] xfs_log_reserve+0xf6/0x310 [xfs]
[50000.748154] xfs_trans_reserve+0x17f/0x250 [xfs]
[50000.752833] xfs_trans_alloc+0x119/0x3b0 [xfs]
[50000.757338] xfs_trans_alloc_icreate+0x41/0xd0 [xfs]
[50000.762367] xfs_create+0x1c9/0x650 [xfs]
[50000.766443] xfs_generic_create+0xfa/0x340 [xfs]
[50000.771120] ? d_splice_alias+0x16e/0x490
[50000.775140] lookup_open.isra.0+0x53c/0x660
[50000.779337] ? verify_cpu+0xf0/0x100
[50000.782922] ? verify_cpu+0xf0/0x100
[50000.786501] path_openat+0x283/0xa90
[50000.790081] ? xfs_iunlock+0x17b/0x280 [xfs]
[50000.794415] do_filp_open+0x86/0x110
[50000.798005] ? _raw_spin_unlock+0x1f/0x30
[50000.802021] ? alloc_fd+0x12c/0x1f0
[50000.805516] do_sys_openat2+0x7b/0x130
[50000.809279] __x64_sys_openat+0x46/0x70
[50000.813125] do_syscall_64+0x40/0x80
[50000.816703] entry_SYSCALL_64_after_hwframe+0x44/0xae
[50000.821755] RIP: 0033:0x7f530e47ab3b
[50000.825336] RSP: 002b:00007ffd4d27e110 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
[50000.832902] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f530e47ab3b
[50000.840034] RDX: 0000000000000241 RSI: 00007ffd4d280563 RDI: 00000000ffffff9c
[50000.847166] RBP: 00007ffd4d280563 R08: 000000000000003d R09: 0000000000000000
[50000.854297] R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000241
[50000.861430] R13: 0000000000000241 R14: 00007ffd4d280563 R15: 00007ffd4d27e420
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-14 12:56 ` Brian Foster
@ 2021-06-14 23:41 ` Dave Chinner
2021-06-15 4:39 ` Dave Chinner
0 siblings, 1 reply; 12+ messages in thread
From: Dave Chinner @ 2021-06-14 23:41 UTC (permalink / raw)
To: Brian Foster; +Cc: linux-xfs
On Mon, Jun 14, 2021 at 08:56:00AM -0400, Brian Foster wrote:
> On Mon, Jun 14, 2021 at 08:32:58AM -0400, Brian Foster wrote:
> > On Sat, Jun 12, 2021 at 08:33:32AM +1000, Dave Chinner wrote:
> > > On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> > > > On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> ...
> >
> > I've also now been hitting a deadlock issue more frequently with the
> > same test. I'll provide more on that in a separate mail..
> >
>
> So I originally thought this one was shutdown related (there still may
> be a shutdown hang, I was quickly working around other issues to give
> priority to the corruption issue), but what I'm seeing actually looks
> like a log reservation deadlock. More specifically, it looks like a
> stuck CIL push and everything else backed up behind it.
>
> I suspect this is related to the same patch (it does show 4 concurrent
> CIL push tasks, fwiw), but I'm not 100% certain atm. I'll repeat some
> tests on the prior commit to try and confirm or rule that out. In the
> meantime, dmesg with blocked task output is attached.
>
> [49989.354537] sysrq: Show Blocked State
> [49989.362009] task:kworker/u161:4 state:D stack: 0 pid:105326 ppid: 2 flags:0x00004000
> [49989.370464] Workqueue: xfs-cil/dm-5 xlog_cil_push_work [xfs]
> [49989.376278] Call Trace:
> [49989.378744] __schedule+0x38b/0xc50
> [49989.382250] ? lock_release+0x1cd/0x2a0
> [49989.386097] schedule+0x5b/0xc0
> [49989.389251] xlog_wait_on_iclog+0xeb/0x100 [xfs]
> [49989.393932] ? wake_up_q+0xa0/0xa0
> [49989.397353] xlog_cil_push_work+0x5cb/0x630 [xfs]
> [49989.402123] ? sched_clock_cpu+0xc/0xb0
> [49989.405971] ? lock_acquire+0x15d/0x380
> [49989.409823] ? lock_release+0x1cd/0x2a0
> [49989.413662] ? lock_acquire+0x15d/0x380
> [49989.417502] ? lock_release+0x1cd/0x2a0
> [49989.421353] ? finish_task_switch.isra.0+0xa0/0x2c0
> [49989.426238] process_one_work+0x26e/0x560
> [49989.430271] worker_thread+0x52/0x3b0
> [49989.433942] ? process_one_work+0x560/0x560
> [49989.438138] kthread+0x12c/0x150
> [49989.441380] ? __kthread_bind_mask+0x60/0x60
Only way we can get stuck here is that the ctx->start_lsn !=
commit_lsn and the previous iclog is still in WANT_SYNC/SYNC state.
This implies the iclog has an elevated reference count and so while
it has been released, IO wasn't issued on it because refcount > 0.
The only way I can see this happening is start_lsn != commit_lsn
on the same iclog, or we have a bug in the iclog reference counting
and it's never reaching zero on the previous iclog.
Ok, I think I've reproduced this - took about 300 iterations of
g/019, but I've got a system stuck like this but all the other CIL
pushes in progress are stuck here:
[ 2458.915655] INFO: task kworker/u8:4:31656 blocked for more than 123 seconds.
[ 2458.917629] Not tainted 5.13.0-rc6-dgc+ #205
[ 2458.919011] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 2458.921205] task:kworker/u8:4 state:D stack:12160 pid:31656 ppid: 2 flags:0x00004000
[ 2458.923538] Workqueue: xfs-cil/vdb xlog_cil_push_work
[ 2458.925000] Call Trace:
[ 2458.925763] __schedule+0x30b/0x9f0
[ 2458.926811] schedule+0x68/0xe0
[ 2458.927757] xlog_state_get_iclog_space+0x1b8/0x2d0
[ 2458.929122] ? wake_up_q+0xa0/0xa0
[ 2458.930142] xlog_write+0x7b/0x650
[ 2458.931145] ? _raw_spin_unlock_irq+0xe/0x30
[ 2458.932405] ? __wait_for_common+0x133/0x160
[ 2458.933647] xlog_cil_push_work+0x5eb/0xa10
[ 2458.934854] ? wake_up_q+0xa0/0xa0
[ 2458.935881] ? xfs_swap_extents+0x920/0x920
[ 2458.937126] process_one_work+0x1ab/0x390
[ 2458.938284] worker_thread+0x56/0x3d0
[ 2458.939355] ? rescuer_thread+0x3c0/0x3c0
[ 2458.940557] kthread+0x14d/0x170
[ 2458.941530] ? __kthread_bind_mask+0x70/0x70
[ 2458.942779] ret_from_fork+0x1f/0x30
Which indicates that there are no iclogs in XLOG_STATE_ACTIVE (i.e.
the "noiclogs" state, and that definitely correlates with an iclog
stuck in an WANT_SYNC state....
Now I know I can reproduce it, I'll dig into it.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-14 23:41 ` Dave Chinner
@ 2021-06-15 4:39 ` Dave Chinner
0 siblings, 0 replies; 12+ messages in thread
From: Dave Chinner @ 2021-06-15 4:39 UTC (permalink / raw)
To: Brian Foster; +Cc: linux-xfs
On Tue, Jun 15, 2021 at 09:41:45AM +1000, Dave Chinner wrote:
> On Mon, Jun 14, 2021 at 08:56:00AM -0400, Brian Foster wrote:
> > On Mon, Jun 14, 2021 at 08:32:58AM -0400, Brian Foster wrote:
> > > On Sat, Jun 12, 2021 at 08:33:32AM +1000, Dave Chinner wrote:
> > > > On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> > > > > On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> > ...
> > >
> > > I've also now been hitting a deadlock issue more frequently with the
> > > same test. I'll provide more on that in a separate mail..
> > >
> >
> > So I originally thought this one was shutdown related (there still may
> > be a shutdown hang, I was quickly working around other issues to give
> > priority to the corruption issue), but what I'm seeing actually looks
> > like a log reservation deadlock. More specifically, it looks like a
> > stuck CIL push and everything else backed up behind it.
> >
> > I suspect this is related to the same patch (it does show 4 concurrent
> > CIL push tasks, fwiw), but I'm not 100% certain atm. I'll repeat some
> > tests on the prior commit to try and confirm or rule that out. In the
> > meantime, dmesg with blocked task output is attached.
> >
> > [49989.354537] sysrq: Show Blocked State
> > [49989.362009] task:kworker/u161:4 state:D stack: 0 pid:105326 ppid: 2 flags:0x00004000
> > [49989.370464] Workqueue: xfs-cil/dm-5 xlog_cil_push_work [xfs]
> > [49989.376278] Call Trace:
> > [49989.378744] __schedule+0x38b/0xc50
> > [49989.382250] ? lock_release+0x1cd/0x2a0
> > [49989.386097] schedule+0x5b/0xc0
> > [49989.389251] xlog_wait_on_iclog+0xeb/0x100 [xfs]
> > [49989.393932] ? wake_up_q+0xa0/0xa0
> > [49989.397353] xlog_cil_push_work+0x5cb/0x630 [xfs]
> > [49989.402123] ? sched_clock_cpu+0xc/0xb0
> > [49989.405971] ? lock_acquire+0x15d/0x380
> > [49989.409823] ? lock_release+0x1cd/0x2a0
> > [49989.413662] ? lock_acquire+0x15d/0x380
> > [49989.417502] ? lock_release+0x1cd/0x2a0
> > [49989.421353] ? finish_task_switch.isra.0+0xa0/0x2c0
> > [49989.426238] process_one_work+0x26e/0x560
> > [49989.430271] worker_thread+0x52/0x3b0
> > [49989.433942] ? process_one_work+0x560/0x560
> > [49989.438138] kthread+0x12c/0x150
> > [49989.441380] ? __kthread_bind_mask+0x60/0x60
>
> Only way we can get stuck here is that the ctx->start_lsn !=
> commit_lsn and the previous iclog is still in WANT_SYNC/SYNC state.
> This implies the iclog has an elevated reference count and so while
> it has been released, IO wasn't issued on it because refcount > 0.
>
> The only way I can see this happening is start_lsn != commit_lsn
> on the same iclog, or we have a bug in the iclog reference counting
> and it's never reaching zero on the previous iclog.
>
> Ok, I think I've reproduced this - took about 300 iterations of
> g/019, but I've got a system stuck like this but all the other CIL
> pushes in progress are stuck here:
>
> [ 2458.915655] INFO: task kworker/u8:4:31656 blocked for more than 123 seconds.
> [ 2458.917629] Not tainted 5.13.0-rc6-dgc+ #205
> [ 2458.919011] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
> [ 2458.921205] task:kworker/u8:4 state:D stack:12160 pid:31656 ppid: 2 flags:0x00004000
> [ 2458.923538] Workqueue: xfs-cil/vdb xlog_cil_push_work
> [ 2458.925000] Call Trace:
> [ 2458.925763] __schedule+0x30b/0x9f0
> [ 2458.926811] schedule+0x68/0xe0
> [ 2458.927757] xlog_state_get_iclog_space+0x1b8/0x2d0
> [ 2458.929122] ? wake_up_q+0xa0/0xa0
> [ 2458.930142] xlog_write+0x7b/0x650
> [ 2458.931145] ? _raw_spin_unlock_irq+0xe/0x30
> [ 2458.932405] ? __wait_for_common+0x133/0x160
> [ 2458.933647] xlog_cil_push_work+0x5eb/0xa10
> [ 2458.934854] ? wake_up_q+0xa0/0xa0
> [ 2458.935881] ? xfs_swap_extents+0x920/0x920
> [ 2458.937126] process_one_work+0x1ab/0x390
> [ 2458.938284] worker_thread+0x56/0x3d0
> [ 2458.939355] ? rescuer_thread+0x3c0/0x3c0
> [ 2458.940557] kthread+0x14d/0x170
> [ 2458.941530] ? __kthread_bind_mask+0x70/0x70
> [ 2458.942779] ret_from_fork+0x1f/0x30
>
> Which indicates that there are no iclogs in XLOG_STATE_ACTIVE (i.e.
> the "noiclogs" state, and that definitely correlates with an iclog
> stuck in an WANT_SYNC state....
>
> Now I know I can reproduce it, I'll dig into it.
I have a trace on this one and I think I know what it is. It
definitely is related to overlapping push work; the problem is
incorrect use of commit_iclog->ic_prev here:
/*
* If the checkpoint spans multiple iclogs, wait for all previous
* iclogs to complete before we submit the commit_iclog. In this case,
* the commit_iclog write needs to issue a pre-flush so that the
* ordering is correctly preserved down to stable storage.
*/
spin_lock(&log->l_icloglock);
if (ctx->start_lsn != commit_lsn) {
xlog_wait_on_iclog(commit_iclog->ic_prev);
spin_lock(&log->l_icloglock);
commit_iclog->ic_flags |= XLOG_ICL_NEED_FLUSH;
}
On the surface, this looks fine - wait on the previous iclog if the
commit lsn indicates that this checkpoint is spread over more than
one iclogbuf. But waht is happening is this:
T1 T2
xlog_write(ctx->start_lsn)
.....
xlog_write(&commit_iclog, &commit_lsn)
.....
<preempt>
xlog_write() {
get iclog
loop {
fill iclog
release iclog
iclog gets written
get iclog
<runs out of ACTIVE iclogs>
}
<scheduled again>
spin_lock(&log->l_icloglock);
if (ctx->start_lsn != commit_lsn) {
xlog_wait_on_iclog(commit_iclog->ic_prev);
ic_prev points at iclog in DONE_SYNC state
waits on iclog
<hang>
The problem here is that commit_iclog->ic_prev is *not* the previous
iclog that was written to disk - it's already been written,
completed and recycled back into active state. Then T2 picks it up,
writes to it, releases it again and more IO is done on it. It now
ends up getting as far as DONE_SYNC in IO completion, and then the
iclog ordering loop goes no further because it's waiting on the
WANT_SYNC iclog that is at the head of the iclogbuf loop that hasn't
had it's IO issued yet.
So, yeah, an iclog stuck in WANT_SYNC state is the problem here
because we're waiting on a future iclog rather than a past iclog
in xlog_cil_push_work()....
I'll write up a patch to fix this and send it along with the tracing
patch I used to debug this.
Cheers,
Dave.
>
> Cheers,
>
> Dave.
> --
> Dave Chinner
> david@fromorbit.com
>
--
Dave Chinner
david@fromorbit.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-11 22:33 ` Dave Chinner
[not found] ` <YMdMehWQoBJC9l0W@bfoster>
@ 2021-06-16 7:05 ` Dave Chinner
2021-06-16 20:33 ` Brian Foster
1 sibling, 1 reply; 12+ messages in thread
From: Dave Chinner @ 2021-06-16 7:05 UTC (permalink / raw)
To: Brian Foster; +Cc: linux-xfs
On Sat, Jun 12, 2021 at 08:33:32AM +1000, Dave Chinner wrote:
> On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> > On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> > > Hi all,
> > >
> > > I'm seeing what looks like at least one new generic/475 failure on
> > > current for-next. (I've seen one related to an attr buffer that seems to
> > > be older and harder to reproduce.). The test devices are a couple ~15GB
> > > lvm devices formatted with mkfs defaults. I'm still trying to establish
> > > reproducibility, but so far a failure seems fairly reliable within ~30
> > > iterations.
> > >
> > > The first [1] looks like log recovery failure processing an EFI. The
> > > second variant [2] looks like it passes log recovery, but then fails the
> > > mount in the COW extent cleanup stage due to a refcountbt problem. I've
> > > also seen one that looks like the same free space corruption error as
> > > [1], but triggered via the COW recovery codepath in [2], so these could
> > > very well be related. A snippet of the dmesg output for each failed
> > > mount is appended below.
> > >
> > ...
> >
> > A couple updates..
> >
> > First (as noted on irc), the generic/475 failure is not new as I was
> > able to produce it on vanilla 5.13.0-rc4. I'm not quite sure how far
> > back that one goes, but Dave noted he's seen it on occasion for some
> > time.
> >
> > The generic/019 failure I'm seeing does appear to be new as I cannot
> > reproduce on 5.13.0-rc4. This failure looks more like silent fs
> > corruption. I.e., the test or log recovery doesn't explicitly fail, but
> > the post-test xfs_repair check detects corruption. Example xfs_repair
> > output is appended below (note that 'xfs_repair -n' actually crashes,
> > while destructive repair seems to work). Since this reproduces fairly
> > reliably on for-next, I bisected it (while also navigating an unmount
> > hang that I don't otherwise have data on) down to facd77e4e38b ("xfs:
> > CIL work is serialised, not pipelined"). From a quick glance at that I'm
> > not quite sure what the problem is there, just that it doesn't occur
> > prior to that particular commit.
>
> I suspect that there's an underlying bug in the overlapping CIL
> commit record sequencing. This commit will be the first time we are
> actually getting overlapping checkpoints that need ordering via the
> commit record writes. Hence I suspect what is being seen here is a
> subtle ordering bug that has been in that code since it was first
> introduced but never exercised until now..
>
> I haven't had any success in reproducing this yet, I'll keep trying
> to see if I can get it to trigger so I can look at it in more
> detail...
I think I have reproduced this enough to have some idea about what
is happening here. I has RUI recovery fail converting an unwritten
extent which was added in a RUI+RUD+rmapbt buffer modification a few
operations prior to the RUI that failed. Turns out that the on-disk
buffer had an LSN stamped in it more recent than the LSN of the
checkpoint being recovered and it all goes downhill from there.
The problematic checkpoints at the end of the log overlap
like this:
Oper (0): tid: 53552074 len: 0 clientid: TRANS flags: START
cycle: 52 version: 2 lsn: 52,13938 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,14002 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,14066 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,14130 tail_lsn: 52,10816
Oper (27): tid: c960e383 len: 0 clientid: TRANS flags: START
cycle: 52 version: 2 lsn: 52,14194 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,14258 tail_lsn: 52,10816
.....
cycle: 52 version: 2 lsn: 52,15410 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,15474 tail_lsn: 52,10816
Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
cycle: 52 version: 2 lsn: 52,15513 tail_lsn: 52,10816
Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
cycle: 52 version: 2 lsn: 52,15577 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,15641 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,15705 tail_lsn: 52,10816
cycle: 52 version: 2 lsn: 52,15769 tail_lsn: 52,10816
You can see the commit records for transaction IDs (tid: xxx)
53552074 and c960e383 are ordered differently to the start records.
The checkpoint "tid: 22790ee5" is the last checkpoint in the log
which is incomplete and so isn't recovered.
Now, from this information I don't know whether the commit records
are correctly ordered as the CIL code is suppposed to do, but what
has happened is that log recovery tags checkpoints with the start
lsn of the checkpoint and uses that for recovery. That's the lsn it
stamps into metadata recovered by that commit.
So, we recover "tid: c960e383" first with a lsn of 0x340003732,
then recover "tid: 53552074" with a lsn of 0x3400003632. Hence even
if the commit records are correctly ordered, log recovery screws up
the LSN used to recover the checkpoints and hence incorrectly
recovers buffers and stamps incorrect LSNs into buffers.
So, once this is all recovered, we go to handle outstanding intents.
We start with a RUI that is an rmap conversion, and it fails to find
the rmap record that it is converting and assert fails. It didn't
find the record because the rmapbt block modification was not
replayed because the on-disk rmapbt block was updated in "tid:
c960e383" and so has a lsn of 0x340003732 stamped in it. And so the
modification that added the record in "tid: 53552074" was skipped
because it ran with an LSN less than what was already on disk.
IOWs, we got a RUI conversion failure because the above two nested
checkpoints were either replayed out of order or were replayed with
the incorrect LSNs.
From here, I'm working as I write this because, well, complex... :/
Hypothesis: If the two nested checkpoints had their commit records
written out of order, then what wasn't complete in 53552074 should
be in c960e383 but was ignored. There were only two RUIs left
incomplete in 53552074 (i.e. had no RUD+rmapbt buffer mods) and they
weren't in c960e383. Hence c960e383 does not follow 53552074.
Indeed, I found both RUDs at the start of checkpoint 22790ee5 (which
wasn't complete or replayed), hence log recovery was correct to be
replaying those RUIs.
So, lets use this same intent -> intent done split across
checkpoints to verify that 53552074 follows c960e383. So:
----------------------------------------------------------------------------
Oper (26): tid: d3047f93 len: 48 clientid: TRANS flags: none
RUI: #regs: 1 num_extents: 1 id: 0xffff888034f3edb0
(s: 0x25198c, l: 1, own: 518, off: 2714540, f: 0x20000001)
....
----------------------------------------------------------------------------
Oper (2): tid: 53552074 len: 16 clientid: TRANS flags: none
RUD: #regs: 1 id: 0xffff8880422f1d90
.....
----------------------------------------------------------------------------
Oper (24): tid: 53552074 len: 48 clientid: TRANS flags: none
RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f35c0
(s: 0x107de7, l: 1, own: 521, off: 2854494, f: 0x5)
....
----------------------------------------------------------------------------
Oper (39): tid: c960e383 len: 16 clientid: TRANS flags: none
RUD: #regs: 1 id: 0xffff888034f3edb0
....
----------------------------------------------------------------------------
Oper (28): tid: c960e383 len: 48 clientid: TRANS flags: none
RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f1d90
(s: 0x31285f, l: 1, own: 520, off: 3195131, f: 0x5)
----------------------------------------------------------------------------
Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
----------------------------------------------------------------------------
Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
....
----------------------------------------------------------------------------
Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
----------------------------------------------------------------------------
Oper (1): tid: 22790ee5 len: 16 clientid: TRANS flags: none
TRAN: tid: e50e7922 num_items: 876
----------------------------------------------------------------------------
Oper (2): tid: 22790ee5 len: 16 clientid: TRANS flags: none
RUD: #regs: 1 id: 0xffff8880422f35c0
----------------------------------------------------------------------------
Yup, there's the ordering evidence. The checkpoint sequence is:
d3047f93 (RUI 0xffff888034f3edb0)
c960e383 (RUD 0xffff888034f3edb0)
c960e383 (RUI 0xffff8880422f1d90)
53552074 (RUD 0xffff8880422f1d90)
53552074 (RUI 0xffff8880422f35c0)
22790ee5 (RUD 0xffff8880422f35c0)
So what we have here is log recovery failing to handle checkpoints
that -start- out of order in the log because it uses the /start lsn/
for recovery LSN sequencing, not the commit record LSN. However, it
uses the commit record ordering for sequencing the recovery of
checkpoints. The code that uses the start lsn for recvery of commit
records appears to be:
STATIC int
xlog_recover_items_pass2(
struct xlog *log,
struct xlog_recover *trans,
struct list_head *buffer_list,
struct list_head *item_list)
{
struct xlog_recover_item *item;
int error = 0;
list_for_each_entry(item, item_list, ri_list) {
trace_xfs_log_recover_item_recover(log, trans, item,
XLOG_RECOVER_PASS2);
if (item->ri_ops->commit_pass2)
error = item->ri_ops->commit_pass2(log, buffer_list,
>>>>>>>>>> item, trans->r_lsn);
if (error)
return error;
}
return error;
}
trans->r_lsn is the LSN where the start record for the
commit is found, not the LSN the commit record was found. At run
time, we do all our ordering off start record LSN because new
journal writes cannot be allowed to overwrite the start of the
checkpoint before every item in the checkpoint has been written back
to disk. If we were to use the commit record LSN, the AIL would
allow the tail of the log to move over the start of the checkpoint
before every thing was written.
However, what is the implication of the AIL having -start lsns- for
checkpoint sequences out of order? And for log recovery finding the
head of the log? I think it means we have the potential for
checkpoint N to be complete in the log an needing recovery, but
checkpoint N+1 is not complete because we've allowed the tail of the
log to move past the start of that checkpoint. That will also cause
corruption log recovery corruption. And I have a sneaking suspiciion
that this may cause fsync/log force issues as well....
----
Ok, time to step back and think about this for a bit. The good news
is that this can only happen with pipelined CIL commits, while means
allowing more than one CIL push to be in progress at once. We can
avoid this whole problem simply by setting the CIL workqueue back to
running just a single ordered work at a time. Call that Plan B.
The bad news is that this is zero day bug, so all kernels out there
will fail to recovery with out of order start records. Back before
delayed logging, we could have mulitple transactions commit to the
journal in just about any order and nesting, and they used exactly
the same start/commit ordering in recovery that is causing us
problems now. This wouldn't have been noticed, however, because
transactions were tiny back then, not huge checkpoints like we run
now. And if is was, it likely would have been blamed on broken
storage because it's so ephemeral and there was little test
infrastructure that exercised these paths... :/
What this means is that we can't just make a fix to log recovery
because taking a log from a current kernel and replaying it on an
older kernel might still go very wrong, and do so silently. So I
think we have to fix what we write to the log.
Hence I think the only way forward here is to recognise that the
AIL, log forces and log recovery all require strictly ordered
checkpoint start records (and hence LSNs) as well as commit records.
We already strictly order the commit records (and this analysis
proves it is working correctly), so we should be able to leverage
the existing functionality to do this.
So I think I see a simple way out of this. I'll sleep on it and see
if if I still think that in the morning...
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-16 7:05 ` Dave Chinner
@ 2021-06-16 20:33 ` Brian Foster
2021-06-16 21:05 ` Darrick J. Wong
0 siblings, 1 reply; 12+ messages in thread
From: Brian Foster @ 2021-06-16 20:33 UTC (permalink / raw)
To: Dave Chinner; +Cc: linux-xfs
On Wed, Jun 16, 2021 at 05:05:42PM +1000, Dave Chinner wrote:
> On Sat, Jun 12, 2021 at 08:33:32AM +1000, Dave Chinner wrote:
> > On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> > > On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> > > > Hi all,
> > > >
> > > > I'm seeing what looks like at least one new generic/475 failure on
> > > > current for-next. (I've seen one related to an attr buffer that seems to
> > > > be older and harder to reproduce.). The test devices are a couple ~15GB
> > > > lvm devices formatted with mkfs defaults. I'm still trying to establish
> > > > reproducibility, but so far a failure seems fairly reliable within ~30
> > > > iterations.
> > > >
> > > > The first [1] looks like log recovery failure processing an EFI. The
> > > > second variant [2] looks like it passes log recovery, but then fails the
> > > > mount in the COW extent cleanup stage due to a refcountbt problem. I've
> > > > also seen one that looks like the same free space corruption error as
> > > > [1], but triggered via the COW recovery codepath in [2], so these could
> > > > very well be related. A snippet of the dmesg output for each failed
> > > > mount is appended below.
> > > >
> > > ...
> > >
> > > A couple updates..
> > >
> > > First (as noted on irc), the generic/475 failure is not new as I was
> > > able to produce it on vanilla 5.13.0-rc4. I'm not quite sure how far
> > > back that one goes, but Dave noted he's seen it on occasion for some
> > > time.
> > >
> > > The generic/019 failure I'm seeing does appear to be new as I cannot
> > > reproduce on 5.13.0-rc4. This failure looks more like silent fs
> > > corruption. I.e., the test or log recovery doesn't explicitly fail, but
> > > the post-test xfs_repair check detects corruption. Example xfs_repair
> > > output is appended below (note that 'xfs_repair -n' actually crashes,
> > > while destructive repair seems to work). Since this reproduces fairly
> > > reliably on for-next, I bisected it (while also navigating an unmount
> > > hang that I don't otherwise have data on) down to facd77e4e38b ("xfs:
> > > CIL work is serialised, not pipelined"). From a quick glance at that I'm
> > > not quite sure what the problem is there, just that it doesn't occur
> > > prior to that particular commit.
> >
> > I suspect that there's an underlying bug in the overlapping CIL
> > commit record sequencing. This commit will be the first time we are
> > actually getting overlapping checkpoints that need ordering via the
> > commit record writes. Hence I suspect what is being seen here is a
> > subtle ordering bug that has been in that code since it was first
> > introduced but never exercised until now..
> >
> > I haven't had any success in reproducing this yet, I'll keep trying
> > to see if I can get it to trigger so I can look at it in more
> > detail...
>
> I think I have reproduced this enough to have some idea about what
> is happening here. I has RUI recovery fail converting an unwritten
> extent which was added in a RUI+RUD+rmapbt buffer modification a few
> operations prior to the RUI that failed. Turns out that the on-disk
> buffer had an LSN stamped in it more recent than the LSN of the
> checkpoint being recovered and it all goes downhill from there.
>
> The problematic checkpoints at the end of the log overlap
> like this:
>
> Oper (0): tid: 53552074 len: 0 clientid: TRANS flags: START
> cycle: 52 version: 2 lsn: 52,13938 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,14002 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,14066 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,14130 tail_lsn: 52,10816
> Oper (27): tid: c960e383 len: 0 clientid: TRANS flags: START
> cycle: 52 version: 2 lsn: 52,14194 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,14258 tail_lsn: 52,10816
> .....
> cycle: 52 version: 2 lsn: 52,15410 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,15474 tail_lsn: 52,10816
> Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
> Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
> cycle: 52 version: 2 lsn: 52,15513 tail_lsn: 52,10816
> Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
> cycle: 52 version: 2 lsn: 52,15577 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,15641 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,15705 tail_lsn: 52,10816
> cycle: 52 version: 2 lsn: 52,15769 tail_lsn: 52,10816
>
> You can see the commit records for transaction IDs (tid: xxx)
> 53552074 and c960e383 are ordered differently to the start records.
> The checkpoint "tid: 22790ee5" is the last checkpoint in the log
> which is incomplete and so isn't recovered.
>
> Now, from this information I don't know whether the commit records
> are correctly ordered as the CIL code is suppposed to do, but what
> has happened is that log recovery tags checkpoints with the start
> lsn of the checkpoint and uses that for recovery. That's the lsn it
> stamps into metadata recovered by that commit.
>
> So, we recover "tid: c960e383" first with a lsn of 0x340003732,
> then recover "tid: 53552074" with a lsn of 0x3400003632. Hence even
> if the commit records are correctly ordered, log recovery screws up
> the LSN used to recover the checkpoints and hence incorrectly
> recovers buffers and stamps incorrect LSNs into buffers.
>
Oof. :/
> So, once this is all recovered, we go to handle outstanding intents.
> We start with a RUI that is an rmap conversion, and it fails to find
> the rmap record that it is converting and assert fails. It didn't
> find the record because the rmapbt block modification was not
> replayed because the on-disk rmapbt block was updated in "tid:
> c960e383" and so has a lsn of 0x340003732 stamped in it. And so the
> modification that added the record in "tid: 53552074" was skipped
> because it ran with an LSN less than what was already on disk.
>
> IOWs, we got a RUI conversion failure because the above two nested
> checkpoints were either replayed out of order or were replayed with
> the incorrect LSNs.
>
> From here, I'm working as I write this because, well, complex... :/
>
> Hypothesis: If the two nested checkpoints had their commit records
> written out of order, then what wasn't complete in 53552074 should
> be in c960e383 but was ignored. There were only two RUIs left
> incomplete in 53552074 (i.e. had no RUD+rmapbt buffer mods) and they
> weren't in c960e383. Hence c960e383 does not follow 53552074.
> Indeed, I found both RUDs at the start of checkpoint 22790ee5 (which
> wasn't complete or replayed), hence log recovery was correct to be
> replaying those RUIs.
>
> So, lets use this same intent -> intent done split across
> checkpoints to verify that 53552074 follows c960e383. So:
>
> ----------------------------------------------------------------------------
> Oper (26): tid: d3047f93 len: 48 clientid: TRANS flags: none
> RUI: #regs: 1 num_extents: 1 id: 0xffff888034f3edb0
> (s: 0x25198c, l: 1, own: 518, off: 2714540, f: 0x20000001)
> ....
> ----------------------------------------------------------------------------
> Oper (2): tid: 53552074 len: 16 clientid: TRANS flags: none
> RUD: #regs: 1 id: 0xffff8880422f1d90
> .....
> ----------------------------------------------------------------------------
> Oper (24): tid: 53552074 len: 48 clientid: TRANS flags: none
> RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f35c0
> (s: 0x107de7, l: 1, own: 521, off: 2854494, f: 0x5)
> ....
> ----------------------------------------------------------------------------
> Oper (39): tid: c960e383 len: 16 clientid: TRANS flags: none
> RUD: #regs: 1 id: 0xffff888034f3edb0
> ....
> ----------------------------------------------------------------------------
> Oper (28): tid: c960e383 len: 48 clientid: TRANS flags: none
> RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f1d90
> (s: 0x31285f, l: 1, own: 520, off: 3195131, f: 0x5)
> ----------------------------------------------------------------------------
> Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
> ----------------------------------------------------------------------------
> Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
> ....
> ----------------------------------------------------------------------------
> Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
> ----------------------------------------------------------------------------
> Oper (1): tid: 22790ee5 len: 16 clientid: TRANS flags: none
> TRAN: tid: e50e7922 num_items: 876
> ----------------------------------------------------------------------------
> Oper (2): tid: 22790ee5 len: 16 clientid: TRANS flags: none
> RUD: #regs: 1 id: 0xffff8880422f35c0
> ----------------------------------------------------------------------------
>
> Yup, there's the ordering evidence. The checkpoint sequence is:
>
> d3047f93 (RUI 0xffff888034f3edb0)
> c960e383 (RUD 0xffff888034f3edb0)
>
> c960e383 (RUI 0xffff8880422f1d90)
> 53552074 (RUD 0xffff8880422f1d90)
>
> 53552074 (RUI 0xffff8880422f35c0)
> 22790ee5 (RUD 0xffff8880422f35c0)
>
> So what we have here is log recovery failing to handle checkpoints
> that -start- out of order in the log because it uses the /start lsn/
> for recovery LSN sequencing, not the commit record LSN. However, it
> uses the commit record ordering for sequencing the recovery of
> checkpoints. The code that uses the start lsn for recvery of commit
> records appears to be:
>
> STATIC int
> xlog_recover_items_pass2(
> struct xlog *log,
> struct xlog_recover *trans,
> struct list_head *buffer_list,
> struct list_head *item_list)
> {
> struct xlog_recover_item *item;
> int error = 0;
>
> list_for_each_entry(item, item_list, ri_list) {
> trace_xfs_log_recover_item_recover(log, trans, item,
> XLOG_RECOVER_PASS2);
>
> if (item->ri_ops->commit_pass2)
> error = item->ri_ops->commit_pass2(log, buffer_list,
> >>>>>>>>>> item, trans->r_lsn);
> if (error)
> return error;
> }
>
> return error;
> }
>
> trans->r_lsn is the LSN where the start record for the
> commit is found, not the LSN the commit record was found. At run
> time, we do all our ordering off start record LSN because new
> journal writes cannot be allowed to overwrite the start of the
> checkpoint before every item in the checkpoint has been written back
> to disk. If we were to use the commit record LSN, the AIL would
> allow the tail of the log to move over the start of the checkpoint
> before every thing was written.
>
> However, what is the implication of the AIL having -start lsns- for
> checkpoint sequences out of order? And for log recovery finding the
> head of the log? I think it means we have the potential for
> checkpoint N to be complete in the log an needing recovery, but
> checkpoint N+1 is not complete because we've allowed the tail of the
> log to move past the start of that checkpoint. That will also cause
> corruption log recovery corruption. And I have a sneaking suspiciion
> that this may cause fsync/log force issues as well....
>
> ----
>
> Ok, time to step back and think about this for a bit. The good news
> is that this can only happen with pipelined CIL commits, while means
> allowing more than one CIL push to be in progress at once. We can
> avoid this whole problem simply by setting the CIL workqueue back to
> running just a single ordered work at a time. Call that Plan B.
>
> The bad news is that this is zero day bug, so all kernels out there
> will fail to recovery with out of order start records. Back before
> delayed logging, we could have mulitple transactions commit to the
> journal in just about any order and nesting, and they used exactly
> the same start/commit ordering in recovery that is causing us
> problems now. This wouldn't have been noticed, however, because
> transactions were tiny back then, not huge checkpoints like we run
> now. And if is was, it likely would have been blamed on broken
> storage because it's so ephemeral and there was little test
> infrastructure that exercised these paths... :/
>
> What this means is that we can't just make a fix to log recovery
> because taking a log from a current kernel and replaying it on an
> older kernel might still go very wrong, and do so silently. So I
> think we have to fix what we write to the log.
>
> Hence I think the only way forward here is to recognise that the
> AIL, log forces and log recovery all require strictly ordered
> checkpoint start records (and hence LSNs) as well as commit records.
> We already strictly order the commit records (and this analysis
> proves it is working correctly), so we should be able to leverage
> the existing functionality to do this.
>
Ok. I still need to poke at the code and think about this, but what you
describe here all makes sense. I wonder a bit if we have the option to
fix recovery via some kind of backwards incompatibility, but that
requires more thought (didn't we implement or at least consider
something like a transient feature bit state some time reasonably
recently? I thought we did but I can't quite put my finger on what it
was for or if it landed upstream.).
That train of thought aside, ordering start records a la traditional
commit record ordering seems like a sane option. I am starting to think
that your plan B might actually be a wise plan A, though. I already
wished we weren't pushing so much log rewrite/rework through all in one
cycle. Now it sounds like we require even more significant (in
complexity, if not code churn, as I don't yet have a picture of what
"start record ordering" looks like) functional changes to make an
otherwise isolated change safe. Just my .02.
Brian
> So I think I see a simple way out of this. I'll sleep on it and see
> if if I still think that in the morning...
>
> Cheers,
>
> Dave.
> --
> Dave Chinner
> david@fromorbit.com
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-16 20:33 ` Brian Foster
@ 2021-06-16 21:05 ` Darrick J. Wong
2021-06-16 22:54 ` Dave Chinner
2021-06-17 12:52 ` Brian Foster
0 siblings, 2 replies; 12+ messages in thread
From: Darrick J. Wong @ 2021-06-16 21:05 UTC (permalink / raw)
To: Brian Foster; +Cc: Dave Chinner, linux-xfs
On Wed, Jun 16, 2021 at 04:33:26PM -0400, Brian Foster wrote:
> On Wed, Jun 16, 2021 at 05:05:42PM +1000, Dave Chinner wrote:
> > On Sat, Jun 12, 2021 at 08:33:32AM +1000, Dave Chinner wrote:
> > > On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> > > > On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> > > > > Hi all,
> > > > >
> > > > > I'm seeing what looks like at least one new generic/475 failure on
> > > > > current for-next. (I've seen one related to an attr buffer that seems to
> > > > > be older and harder to reproduce.). The test devices are a couple ~15GB
> > > > > lvm devices formatted with mkfs defaults. I'm still trying to establish
> > > > > reproducibility, but so far a failure seems fairly reliable within ~30
> > > > > iterations.
> > > > >
> > > > > The first [1] looks like log recovery failure processing an EFI. The
> > > > > second variant [2] looks like it passes log recovery, but then fails the
> > > > > mount in the COW extent cleanup stage due to a refcountbt problem. I've
> > > > > also seen one that looks like the same free space corruption error as
> > > > > [1], but triggered via the COW recovery codepath in [2], so these could
> > > > > very well be related. A snippet of the dmesg output for each failed
> > > > > mount is appended below.
> > > > >
> > > > ...
> > > >
> > > > A couple updates..
> > > >
> > > > First (as noted on irc), the generic/475 failure is not new as I was
> > > > able to produce it on vanilla 5.13.0-rc4. I'm not quite sure how far
> > > > back that one goes, but Dave noted he's seen it on occasion for some
> > > > time.
> > > >
> > > > The generic/019 failure I'm seeing does appear to be new as I cannot
> > > > reproduce on 5.13.0-rc4. This failure looks more like silent fs
> > > > corruption. I.e., the test or log recovery doesn't explicitly fail, but
> > > > the post-test xfs_repair check detects corruption. Example xfs_repair
> > > > output is appended below (note that 'xfs_repair -n' actually crashes,
> > > > while destructive repair seems to work). Since this reproduces fairly
> > > > reliably on for-next, I bisected it (while also navigating an unmount
> > > > hang that I don't otherwise have data on) down to facd77e4e38b ("xfs:
> > > > CIL work is serialised, not pipelined"). From a quick glance at that I'm
> > > > not quite sure what the problem is there, just that it doesn't occur
> > > > prior to that particular commit.
> > >
> > > I suspect that there's an underlying bug in the overlapping CIL
> > > commit record sequencing. This commit will be the first time we are
> > > actually getting overlapping checkpoints that need ordering via the
> > > commit record writes. Hence I suspect what is being seen here is a
> > > subtle ordering bug that has been in that code since it was first
> > > introduced but never exercised until now..
> > >
> > > I haven't had any success in reproducing this yet, I'll keep trying
> > > to see if I can get it to trigger so I can look at it in more
> > > detail...
> >
> > I think I have reproduced this enough to have some idea about what
> > is happening here. I has RUI recovery fail converting an unwritten
> > extent which was added in a RUI+RUD+rmapbt buffer modification a few
> > operations prior to the RUI that failed. Turns out that the on-disk
> > buffer had an LSN stamped in it more recent than the LSN of the
> > checkpoint being recovered and it all goes downhill from there.
> >
> > The problematic checkpoints at the end of the log overlap
> > like this:
> >
> > Oper (0): tid: 53552074 len: 0 clientid: TRANS flags: START
> > cycle: 52 version: 2 lsn: 52,13938 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,14002 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,14066 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,14130 tail_lsn: 52,10816
> > Oper (27): tid: c960e383 len: 0 clientid: TRANS flags: START
> > cycle: 52 version: 2 lsn: 52,14194 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,14258 tail_lsn: 52,10816
> > .....
> > cycle: 52 version: 2 lsn: 52,15410 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,15474 tail_lsn: 52,10816
> > Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
> > Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
> > cycle: 52 version: 2 lsn: 52,15513 tail_lsn: 52,10816
> > Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
> > cycle: 52 version: 2 lsn: 52,15577 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,15641 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,15705 tail_lsn: 52,10816
> > cycle: 52 version: 2 lsn: 52,15769 tail_lsn: 52,10816
> >
> > You can see the commit records for transaction IDs (tid: xxx)
> > 53552074 and c960e383 are ordered differently to the start records.
> > The checkpoint "tid: 22790ee5" is the last checkpoint in the log
> > which is incomplete and so isn't recovered.
> >
> > Now, from this information I don't know whether the commit records
> > are correctly ordered as the CIL code is suppposed to do, but what
> > has happened is that log recovery tags checkpoints with the start
> > lsn of the checkpoint and uses that for recovery. That's the lsn it
> > stamps into metadata recovered by that commit.
> >
> > So, we recover "tid: c960e383" first with a lsn of 0x340003732,
> > then recover "tid: 53552074" with a lsn of 0x3400003632. Hence even
> > if the commit records are correctly ordered, log recovery screws up
> > the LSN used to recover the checkpoints and hence incorrectly
> > recovers buffers and stamps incorrect LSNs into buffers.
> >
>
> Oof. :/
>
> > So, once this is all recovered, we go to handle outstanding intents.
> > We start with a RUI that is an rmap conversion, and it fails to find
> > the rmap record that it is converting and assert fails. It didn't
> > find the record because the rmapbt block modification was not
> > replayed because the on-disk rmapbt block was updated in "tid:
> > c960e383" and so has a lsn of 0x340003732 stamped in it. And so the
> > modification that added the record in "tid: 53552074" was skipped
> > because it ran with an LSN less than what was already on disk.
> >
> > IOWs, we got a RUI conversion failure because the above two nested
> > checkpoints were either replayed out of order or were replayed with
> > the incorrect LSNs.
> >
> > From here, I'm working as I write this because, well, complex... :/
> >
> > Hypothesis: If the two nested checkpoints had their commit records
> > written out of order, then what wasn't complete in 53552074 should
> > be in c960e383 but was ignored. There were only two RUIs left
> > incomplete in 53552074 (i.e. had no RUD+rmapbt buffer mods) and they
> > weren't in c960e383. Hence c960e383 does not follow 53552074.
> > Indeed, I found both RUDs at the start of checkpoint 22790ee5 (which
> > wasn't complete or replayed), hence log recovery was correct to be
> > replaying those RUIs.
> >
> > So, lets use this same intent -> intent done split across
> > checkpoints to verify that 53552074 follows c960e383. So:
> >
> > ----------------------------------------------------------------------------
> > Oper (26): tid: d3047f93 len: 48 clientid: TRANS flags: none
> > RUI: #regs: 1 num_extents: 1 id: 0xffff888034f3edb0
> > (s: 0x25198c, l: 1, own: 518, off: 2714540, f: 0x20000001)
> > ....
> > ----------------------------------------------------------------------------
> > Oper (2): tid: 53552074 len: 16 clientid: TRANS flags: none
> > RUD: #regs: 1 id: 0xffff8880422f1d90
> > .....
> > ----------------------------------------------------------------------------
> > Oper (24): tid: 53552074 len: 48 clientid: TRANS flags: none
> > RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f35c0
> > (s: 0x107de7, l: 1, own: 521, off: 2854494, f: 0x5)
> > ....
> > ----------------------------------------------------------------------------
> > Oper (39): tid: c960e383 len: 16 clientid: TRANS flags: none
> > RUD: #regs: 1 id: 0xffff888034f3edb0
> > ....
> > ----------------------------------------------------------------------------
> > Oper (28): tid: c960e383 len: 48 clientid: TRANS flags: none
> > RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f1d90
> > (s: 0x31285f, l: 1, own: 520, off: 3195131, f: 0x5)
> > ----------------------------------------------------------------------------
> > Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
> > ----------------------------------------------------------------------------
> > Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
> > ....
> > ----------------------------------------------------------------------------
> > Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
> > ----------------------------------------------------------------------------
> > Oper (1): tid: 22790ee5 len: 16 clientid: TRANS flags: none
> > TRAN: tid: e50e7922 num_items: 876
> > ----------------------------------------------------------------------------
> > Oper (2): tid: 22790ee5 len: 16 clientid: TRANS flags: none
> > RUD: #regs: 1 id: 0xffff8880422f35c0
> > ----------------------------------------------------------------------------
> >
> > Yup, there's the ordering evidence. The checkpoint sequence is:
> >
> > d3047f93 (RUI 0xffff888034f3edb0)
> > c960e383 (RUD 0xffff888034f3edb0)
> >
> > c960e383 (RUI 0xffff8880422f1d90)
> > 53552074 (RUD 0xffff8880422f1d90)
> >
> > 53552074 (RUI 0xffff8880422f35c0)
> > 22790ee5 (RUD 0xffff8880422f35c0)
> >
> > So what we have here is log recovery failing to handle checkpoints
> > that -start- out of order in the log because it uses the /start lsn/
> > for recovery LSN sequencing, not the commit record LSN. However, it
> > uses the commit record ordering for sequencing the recovery of
> > checkpoints. The code that uses the start lsn for recvery of commit
> > records appears to be:
> >
> > STATIC int
> > xlog_recover_items_pass2(
> > struct xlog *log,
> > struct xlog_recover *trans,
> > struct list_head *buffer_list,
> > struct list_head *item_list)
> > {
> > struct xlog_recover_item *item;
> > int error = 0;
> >
> > list_for_each_entry(item, item_list, ri_list) {
> > trace_xfs_log_recover_item_recover(log, trans, item,
> > XLOG_RECOVER_PASS2);
> >
> > if (item->ri_ops->commit_pass2)
> > error = item->ri_ops->commit_pass2(log, buffer_list,
> > >>>>>>>>>> item, trans->r_lsn);
> > if (error)
> > return error;
> > }
> >
> > return error;
> > }
> >
> > trans->r_lsn is the LSN where the start record for the
> > commit is found, not the LSN the commit record was found. At run
> > time, we do all our ordering off start record LSN because new
> > journal writes cannot be allowed to overwrite the start of the
> > checkpoint before every item in the checkpoint has been written back
> > to disk. If we were to use the commit record LSN, the AIL would
> > allow the tail of the log to move over the start of the checkpoint
> > before every thing was written.
> >
> > However, what is the implication of the AIL having -start lsns- for
> > checkpoint sequences out of order? And for log recovery finding the
> > head of the log? I think it means we have the potential for
> > checkpoint N to be complete in the log an needing recovery, but
> > checkpoint N+1 is not complete because we've allowed the tail of the
> > log to move past the start of that checkpoint. That will also cause
> > corruption log recovery corruption. And I have a sneaking suspiciion
> > that this may cause fsync/log force issues as well....
> >
> > ----
> >
> > Ok, time to step back and think about this for a bit. The good news
> > is that this can only happen with pipelined CIL commits, while means
> > allowing more than one CIL push to be in progress at once. We can
> > avoid this whole problem simply by setting the CIL workqueue back to
> > running just a single ordered work at a time. Call that Plan B.
> >
> > The bad news is that this is zero day bug, so all kernels out there
> > will fail to recovery with out of order start records. Back before
> > delayed logging, we could have mulitple transactions commit to the
> > journal in just about any order and nesting, and they used exactly
> > the same start/commit ordering in recovery that is causing us
> > problems now. This wouldn't have been noticed, however, because
> > transactions were tiny back then, not huge checkpoints like we run
> > now. And if is was, it likely would have been blamed on broken
> > storage because it's so ephemeral and there was little test
> > infrastructure that exercised these paths... :/
It's a zero day bug, but at least nobody tripped over this until two
months ago. I've been dealing on and off with customer escalations
involving a filesystem with large reflinked images that goes down, and
then some time after the recovery (minutes to weeks) they hit a
corruption goto and crash again. I've been able to pin down the
symptoms to ... the "corrupt" refcount btree block containing partial
old contents, where the old contents are always aligned to 128 byte
boundaries, and when Dave mentioned this last night I realized that he
and I might have fallen into the same thing.
> > What this means is that we can't just make a fix to log recovery
> > because taking a log from a current kernel and replaying it on an
> > older kernel might still go very wrong, and do so silently. So I
> > think we have to fix what we write to the log.
> >
> > Hence I think the only way forward here is to recognise that the
> > AIL, log forces and log recovery all require strictly ordered
> > checkpoint start records (and hence LSNs) as well as commit records.
> > We already strictly order the commit records (and this analysis
> > proves it is working correctly), so we should be able to leverage
> > the existing functionality to do this.
> >
>
> Ok. I still need to poke at the code and think about this, but what you
> describe here all makes sense. I wonder a bit if we have the option to
> fix recovery via some kind of backwards incompatibility, but that
> requires more thought (didn't we implement or at least consider
> something like a transient feature bit state some time reasonably
> recently? I thought we did but I can't quite put my finger on what it
> was for or if it landed upstream.).
We did -- it was (is) a patchset to turn on log incompat feature bits in
the superblock, and clear them later on when they're not in use and the
log is being cleaned. I proposed doing that for atomic file content
swapping, and Allison's deferred xattrs patchset will want the same to
protect xattr log intent items.
> That train of thought aside, ordering start records a la traditional
> commit record ordering seems like a sane option. I am starting to think
> that your plan B might actually be a wise plan A, though. I already
> wished we weren't pushing so much log rewrite/rework through all in one
> cycle. Now it sounds like we require even more significant (in
> complexity, if not code churn, as I don't yet have a picture of what
> "start record ordering" looks like) functional changes to make an
> otherwise isolated change safe. Just my .02.
/me guesses that we should go with plan B for 5.14, and work on fixing
whatever's wrong for 5.15. But since it's never possible to tell how
much time is left until the merge window opens, I'll keep an open
mind...
> Brian
>
> > So I think I see a simple way out of this. I'll sleep on it and see
> > if if I still think that in the morning...
...at least until I hear what this simple way out is.
--D
> >
> > Cheers,
> >
> > Dave.
> > --
> > Dave Chinner
> > david@fromorbit.com
> >
>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-16 21:05 ` Darrick J. Wong
@ 2021-06-16 22:54 ` Dave Chinner
2021-06-17 1:28 ` Darrick J. Wong
2021-06-17 12:52 ` Brian Foster
1 sibling, 1 reply; 12+ messages in thread
From: Dave Chinner @ 2021-06-16 22:54 UTC (permalink / raw)
To: Darrick J. Wong; +Cc: Brian Foster, linux-xfs
On Wed, Jun 16, 2021 at 02:05:00PM -0700, Darrick J. Wong wrote:
> On Wed, Jun 16, 2021 at 04:33:26PM -0400, Brian Foster wrote:
> > On Wed, Jun 16, 2021 at 05:05:42PM +1000, Dave Chinner wrote:
> > > Ok, time to step back and think about this for a bit. The good news
> > > is that this can only happen with pipelined CIL commits, while means
> > > allowing more than one CIL push to be in progress at once. We can
> > > avoid this whole problem simply by setting the CIL workqueue back to
> > > running just a single ordered work at a time. Call that Plan B.
> > >
> > > The bad news is that this is zero day bug, so all kernels out there
> > > will fail to recovery with out of order start records. Back before
> > > delayed logging, we could have mulitple transactions commit to the
> > > journal in just about any order and nesting, and they used exactly
> > > the same start/commit ordering in recovery that is causing us
> > > problems now. This wouldn't have been noticed, however, because
> > > transactions were tiny back then, not huge checkpoints like we run
> > > now. And if is was, it likely would have been blamed on broken
> > > storage because it's so ephemeral and there was little test
> > > infrastructure that exercised these paths... :/
>
> It's a zero day bug, but at least nobody tripped over this until two
> months ago. I've been dealing on and off with customer escalations
> involving a filesystem with large reflinked images that goes down, and
> then some time after the recovery (minutes to weeks) they hit a
> corruption goto and crash again. I've been able to pin down the
> symptoms to ... the "corrupt" refcount btree block containing partial
> old contents, where the old contents are always aligned to 128 byte
> boundaries, and when Dave mentioned this last night I realized that he
> and I might have fallen into the same thing.
I have my suspicions that this has been causing issues for a long
time, but it's been so rare that it's been impossible to reproduce
and hence capture the information needed to debug it. This time,
however, the failure triggered an assert before recovery completed
and so left the filesystem in the state where I could repeat log
recovery and have it fail with the same ASSERT fail over and over
again.
<meme> A few hours later.... </meme>
> > > What this means is that we can't just make a fix to log recovery
> > > because taking a log from a current kernel and replaying it on an
> > > older kernel might still go very wrong, and do so silently. So I
> > > think we have to fix what we write to the log.
> > >
> > > Hence I think the only way forward here is to recognise that the
> > > AIL, log forces and log recovery all require strictly ordered
> > > checkpoint start records (and hence LSNs) as well as commit records.
> > > We already strictly order the commit records (and this analysis
> > > proves it is working correctly), so we should be able to leverage
> > > the existing functionality to do this.
> > >
> >
> > Ok. I still need to poke at the code and think about this, but what you
> > describe here all makes sense. I wonder a bit if we have the option to
> > fix recovery via some kind of backwards incompatibility, but that
> > requires more thought (didn't we implement or at least consider
> > something like a transient feature bit state some time reasonably
> > recently? I thought we did but I can't quite put my finger on what it
> > was for or if it landed upstream.).
>
> We did -- it was (is) a patchset to turn on log incompat feature bits in
> the superblock, and clear them later on when they're not in use and the
> log is being cleaned. I proposed doing that for atomic file content
> swapping, and Allison's deferred xattrs patchset will want the same to
> protect xattr log intent items.
>
> > That train of thought aside, ordering start records a la traditional
> > commit record ordering seems like a sane option. I am starting to think
> > that your plan B might actually be a wise plan A, though. I already
> > wished we weren't pushing so much log rewrite/rework through all in one
> > cycle. Now it sounds like we require even more significant (in
> > complexity, if not code churn, as I don't yet have a picture of what
> > "start record ordering" looks like) functional changes to make an
> > otherwise isolated change safe. Just my .02.
>
> /me guesses that we should go with plan B for 5.14, and work on fixing
> whatever's wrong for 5.15. But since it's never possible to tell how
> much time is left until the merge window opens, I'll keep an open
> mind...
The simple fix appears to have worked. That was just applying the
same write ordering code the commit records use to the start record
write.
The series of fixes I have now has run about a thousand cycles of
g/019 without a log hang or a log recovery failure, so I think I've
got viable fixes for the issues g/019 has exposed. I also suspect
that this start record ordering issue is what g/475 was tripping
over, too.
Given that we still have a couple of months before this will be
released to users, I'd much prefer that we move forwards with
testing the fixes because there is a suspicion and anecdotal
evidence that this problem has been affecting users for a long time
regardless of the recent changes that have brought it out into the
daylight.
I'm about to split up the fix into smaller chunks and then I'll post
the series for review.
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-16 22:54 ` Dave Chinner
@ 2021-06-17 1:28 ` Darrick J. Wong
0 siblings, 0 replies; 12+ messages in thread
From: Darrick J. Wong @ 2021-06-17 1:28 UTC (permalink / raw)
To: Dave Chinner; +Cc: Brian Foster, linux-xfs
On Thu, Jun 17, 2021 at 08:54:07AM +1000, Dave Chinner wrote:
> On Wed, Jun 16, 2021 at 02:05:00PM -0700, Darrick J. Wong wrote:
> > On Wed, Jun 16, 2021 at 04:33:26PM -0400, Brian Foster wrote:
> > > On Wed, Jun 16, 2021 at 05:05:42PM +1000, Dave Chinner wrote:
> > > > Ok, time to step back and think about this for a bit. The good news
> > > > is that this can only happen with pipelined CIL commits, while means
> > > > allowing more than one CIL push to be in progress at once. We can
> > > > avoid this whole problem simply by setting the CIL workqueue back to
> > > > running just a single ordered work at a time. Call that Plan B.
> > > >
> > > > The bad news is that this is zero day bug, so all kernels out there
> > > > will fail to recovery with out of order start records. Back before
> > > > delayed logging, we could have mulitple transactions commit to the
> > > > journal in just about any order and nesting, and they used exactly
> > > > the same start/commit ordering in recovery that is causing us
> > > > problems now. This wouldn't have been noticed, however, because
> > > > transactions were tiny back then, not huge checkpoints like we run
> > > > now. And if is was, it likely would have been blamed on broken
> > > > storage because it's so ephemeral and there was little test
> > > > infrastructure that exercised these paths... :/
> >
> > It's a zero day bug, but at least nobody tripped over this until two
> > months ago. I've been dealing on and off with customer escalations
> > involving a filesystem with large reflinked images that goes down, and
> > then some time after the recovery (minutes to weeks) they hit a
> > corruption goto and crash again. I've been able to pin down the
> > symptoms to ... the "corrupt" refcount btree block containing partial
> > old contents, where the old contents are always aligned to 128 byte
> > boundaries, and when Dave mentioned this last night I realized that he
> > and I might have fallen into the same thing.
>
> I have my suspicions that this has been causing issues for a long
> time, but it's been so rare that it's been impossible to reproduce
> and hence capture the information needed to debug it. This time,
> however, the failure triggered an assert before recovery completed
> and so left the filesystem in the state where I could repeat log
> recovery and have it fail with the same ASSERT fail over and over
> again.
>
> <meme> A few hours later.... </meme>
>
> > > > What this means is that we can't just make a fix to log recovery
> > > > because taking a log from a current kernel and replaying it on an
> > > > older kernel might still go very wrong, and do so silently. So I
> > > > think we have to fix what we write to the log.
> > > >
> > > > Hence I think the only way forward here is to recognise that the
> > > > AIL, log forces and log recovery all require strictly ordered
> > > > checkpoint start records (and hence LSNs) as well as commit records.
> > > > We already strictly order the commit records (and this analysis
> > > > proves it is working correctly), so we should be able to leverage
> > > > the existing functionality to do this.
> > > >
> > >
> > > Ok. I still need to poke at the code and think about this, but what you
> > > describe here all makes sense. I wonder a bit if we have the option to
> > > fix recovery via some kind of backwards incompatibility, but that
> > > requires more thought (didn't we implement or at least consider
> > > something like a transient feature bit state some time reasonably
> > > recently? I thought we did but I can't quite put my finger on what it
> > > was for or if it landed upstream.).
> >
> > We did -- it was (is) a patchset to turn on log incompat feature bits in
> > the superblock, and clear them later on when they're not in use and the
> > log is being cleaned. I proposed doing that for atomic file content
> > swapping, and Allison's deferred xattrs patchset will want the same to
> > protect xattr log intent items.
> >
> > > That train of thought aside, ordering start records a la traditional
> > > commit record ordering seems like a sane option. I am starting to think
> > > that your plan B might actually be a wise plan A, though. I already
> > > wished we weren't pushing so much log rewrite/rework through all in one
> > > cycle. Now it sounds like we require even more significant (in
> > > complexity, if not code churn, as I don't yet have a picture of what
> > > "start record ordering" looks like) functional changes to make an
> > > otherwise isolated change safe. Just my .02.
> >
> > /me guesses that we should go with plan B for 5.14, and work on fixing
> > whatever's wrong for 5.15. But since it's never possible to tell how
> > much time is left until the merge window opens, I'll keep an open
> > mind...
>
> The simple fix appears to have worked. That was just applying the
> same write ordering code the commit records use to the start record
> write.
>
> The series of fixes I have now has run about a thousand cycles of
> g/019 without a log hang or a log recovery failure, so I think I've
> got viable fixes for the issues g/019 has exposed. I also suspect
> that this start record ordering issue is what g/475 was tripping
> over, too.
Hooray!
> Given that we still have a couple of months before this will be
> released to users, I'd much prefer that we move forwards with
> testing the fixes because there is a suspicion and anecdotal
> evidence that this problem has been affecting users for a long time
> regardless of the recent changes that have brought it out into the
> daylight.
>
> I'm about to split up the fix into smaller chunks and then I'll post
> the series for review.
Ok, looking forward to it. Given the recent rash of log related bugs, I
think I'm going to defer review of all new code patchsets (hch's log
cleanup, deferred inactivation) for 5.15 to prioritize making the
problems go away.
--D
>
> Cheers,
>
> Dave.
> --
> Dave Chinner
> david@fromorbit.com
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [BUG] generic/475 recovery failure(s)
2021-06-16 21:05 ` Darrick J. Wong
2021-06-16 22:54 ` Dave Chinner
@ 2021-06-17 12:52 ` Brian Foster
1 sibling, 0 replies; 12+ messages in thread
From: Brian Foster @ 2021-06-17 12:52 UTC (permalink / raw)
To: Darrick J. Wong; +Cc: Dave Chinner, linux-xfs
On Wed, Jun 16, 2021 at 02:05:00PM -0700, Darrick J. Wong wrote:
> On Wed, Jun 16, 2021 at 04:33:26PM -0400, Brian Foster wrote:
> > On Wed, Jun 16, 2021 at 05:05:42PM +1000, Dave Chinner wrote:
> > > On Sat, Jun 12, 2021 at 08:33:32AM +1000, Dave Chinner wrote:
> > > > On Fri, Jun 11, 2021 at 03:02:39PM -0400, Brian Foster wrote:
> > > > > On Thu, Jun 10, 2021 at 11:14:32AM -0400, Brian Foster wrote:
> > > > > > Hi all,
> > > > > >
> > > > > > I'm seeing what looks like at least one new generic/475 failure on
> > > > > > current for-next. (I've seen one related to an attr buffer that seems to
> > > > > > be older and harder to reproduce.). The test devices are a couple ~15GB
> > > > > > lvm devices formatted with mkfs defaults. I'm still trying to establish
> > > > > > reproducibility, but so far a failure seems fairly reliable within ~30
> > > > > > iterations.
> > > > > >
> > > > > > The first [1] looks like log recovery failure processing an EFI. The
> > > > > > second variant [2] looks like it passes log recovery, but then fails the
> > > > > > mount in the COW extent cleanup stage due to a refcountbt problem. I've
> > > > > > also seen one that looks like the same free space corruption error as
> > > > > > [1], but triggered via the COW recovery codepath in [2], so these could
> > > > > > very well be related. A snippet of the dmesg output for each failed
> > > > > > mount is appended below.
> > > > > >
> > > > > ...
> > > > >
> > > > > A couple updates..
> > > > >
> > > > > First (as noted on irc), the generic/475 failure is not new as I was
> > > > > able to produce it on vanilla 5.13.0-rc4. I'm not quite sure how far
> > > > > back that one goes, but Dave noted he's seen it on occasion for some
> > > > > time.
> > > > >
> > > > > The generic/019 failure I'm seeing does appear to be new as I cannot
> > > > > reproduce on 5.13.0-rc4. This failure looks more like silent fs
> > > > > corruption. I.e., the test or log recovery doesn't explicitly fail, but
> > > > > the post-test xfs_repair check detects corruption. Example xfs_repair
> > > > > output is appended below (note that 'xfs_repair -n' actually crashes,
> > > > > while destructive repair seems to work). Since this reproduces fairly
> > > > > reliably on for-next, I bisected it (while also navigating an unmount
> > > > > hang that I don't otherwise have data on) down to facd77e4e38b ("xfs:
> > > > > CIL work is serialised, not pipelined"). From a quick glance at that I'm
> > > > > not quite sure what the problem is there, just that it doesn't occur
> > > > > prior to that particular commit.
> > > >
> > > > I suspect that there's an underlying bug in the overlapping CIL
> > > > commit record sequencing. This commit will be the first time we are
> > > > actually getting overlapping checkpoints that need ordering via the
> > > > commit record writes. Hence I suspect what is being seen here is a
> > > > subtle ordering bug that has been in that code since it was first
> > > > introduced but never exercised until now..
> > > >
> > > > I haven't had any success in reproducing this yet, I'll keep trying
> > > > to see if I can get it to trigger so I can look at it in more
> > > > detail...
> > >
> > > I think I have reproduced this enough to have some idea about what
> > > is happening here. I has RUI recovery fail converting an unwritten
> > > extent which was added in a RUI+RUD+rmapbt buffer modification a few
> > > operations prior to the RUI that failed. Turns out that the on-disk
> > > buffer had an LSN stamped in it more recent than the LSN of the
> > > checkpoint being recovered and it all goes downhill from there.
> > >
> > > The problematic checkpoints at the end of the log overlap
> > > like this:
> > >
> > > Oper (0): tid: 53552074 len: 0 clientid: TRANS flags: START
> > > cycle: 52 version: 2 lsn: 52,13938 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,14002 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,14066 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,14130 tail_lsn: 52,10816
> > > Oper (27): tid: c960e383 len: 0 clientid: TRANS flags: START
> > > cycle: 52 version: 2 lsn: 52,14194 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,14258 tail_lsn: 52,10816
> > > .....
> > > cycle: 52 version: 2 lsn: 52,15410 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,15474 tail_lsn: 52,10816
> > > Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
> > > Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
> > > cycle: 52 version: 2 lsn: 52,15513 tail_lsn: 52,10816
> > > Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
> > > cycle: 52 version: 2 lsn: 52,15577 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,15641 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,15705 tail_lsn: 52,10816
> > > cycle: 52 version: 2 lsn: 52,15769 tail_lsn: 52,10816
> > >
> > > You can see the commit records for transaction IDs (tid: xxx)
> > > 53552074 and c960e383 are ordered differently to the start records.
> > > The checkpoint "tid: 22790ee5" is the last checkpoint in the log
> > > which is incomplete and so isn't recovered.
> > >
> > > Now, from this information I don't know whether the commit records
> > > are correctly ordered as the CIL code is suppposed to do, but what
> > > has happened is that log recovery tags checkpoints with the start
> > > lsn of the checkpoint and uses that for recovery. That's the lsn it
> > > stamps into metadata recovered by that commit.
> > >
> > > So, we recover "tid: c960e383" first with a lsn of 0x340003732,
> > > then recover "tid: 53552074" with a lsn of 0x3400003632. Hence even
> > > if the commit records are correctly ordered, log recovery screws up
> > > the LSN used to recover the checkpoints and hence incorrectly
> > > recovers buffers and stamps incorrect LSNs into buffers.
> > >
> >
> > Oof. :/
> >
> > > So, once this is all recovered, we go to handle outstanding intents.
> > > We start with a RUI that is an rmap conversion, and it fails to find
> > > the rmap record that it is converting and assert fails. It didn't
> > > find the record because the rmapbt block modification was not
> > > replayed because the on-disk rmapbt block was updated in "tid:
> > > c960e383" and so has a lsn of 0x340003732 stamped in it. And so the
> > > modification that added the record in "tid: 53552074" was skipped
> > > because it ran with an LSN less than what was already on disk.
> > >
> > > IOWs, we got a RUI conversion failure because the above two nested
> > > checkpoints were either replayed out of order or were replayed with
> > > the incorrect LSNs.
> > >
> > > From here, I'm working as I write this because, well, complex... :/
> > >
> > > Hypothesis: If the two nested checkpoints had their commit records
> > > written out of order, then what wasn't complete in 53552074 should
> > > be in c960e383 but was ignored. There were only two RUIs left
> > > incomplete in 53552074 (i.e. had no RUD+rmapbt buffer mods) and they
> > > weren't in c960e383. Hence c960e383 does not follow 53552074.
> > > Indeed, I found both RUDs at the start of checkpoint 22790ee5 (which
> > > wasn't complete or replayed), hence log recovery was correct to be
> > > replaying those RUIs.
> > >
> > > So, lets use this same intent -> intent done split across
> > > checkpoints to verify that 53552074 follows c960e383. So:
> > >
> > > ----------------------------------------------------------------------------
> > > Oper (26): tid: d3047f93 len: 48 clientid: TRANS flags: none
> > > RUI: #regs: 1 num_extents: 1 id: 0xffff888034f3edb0
> > > (s: 0x25198c, l: 1, own: 518, off: 2714540, f: 0x20000001)
> > > ....
> > > ----------------------------------------------------------------------------
> > > Oper (2): tid: 53552074 len: 16 clientid: TRANS flags: none
> > > RUD: #regs: 1 id: 0xffff8880422f1d90
> > > .....
> > > ----------------------------------------------------------------------------
> > > Oper (24): tid: 53552074 len: 48 clientid: TRANS flags: none
> > > RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f35c0
> > > (s: 0x107de7, l: 1, own: 521, off: 2854494, f: 0x5)
> > > ....
> > > ----------------------------------------------------------------------------
> > > Oper (39): tid: c960e383 len: 16 clientid: TRANS flags: none
> > > RUD: #regs: 1 id: 0xffff888034f3edb0
> > > ....
> > > ----------------------------------------------------------------------------
> > > Oper (28): tid: c960e383 len: 48 clientid: TRANS flags: none
> > > RUI: #regs: 1 num_extents: 1 id: 0xffff8880422f1d90
> > > (s: 0x31285f, l: 1, own: 520, off: 3195131, f: 0x5)
> > > ----------------------------------------------------------------------------
> > > Oper (29): tid: c960e383 len: 0 clientid: TRANS flags: COMMIT
> > > ----------------------------------------------------------------------------
> > > Oper (30): tid: 53552074 len: 0 clientid: TRANS flags: COMMIT
> > > ....
> > > ----------------------------------------------------------------------------
> > > Oper (0): tid: 22790ee5 len: 0 clientid: TRANS flags: START
> > > ----------------------------------------------------------------------------
> > > Oper (1): tid: 22790ee5 len: 16 clientid: TRANS flags: none
> > > TRAN: tid: e50e7922 num_items: 876
> > > ----------------------------------------------------------------------------
> > > Oper (2): tid: 22790ee5 len: 16 clientid: TRANS flags: none
> > > RUD: #regs: 1 id: 0xffff8880422f35c0
> > > ----------------------------------------------------------------------------
> > >
> > > Yup, there's the ordering evidence. The checkpoint sequence is:
> > >
> > > d3047f93 (RUI 0xffff888034f3edb0)
> > > c960e383 (RUD 0xffff888034f3edb0)
> > >
> > > c960e383 (RUI 0xffff8880422f1d90)
> > > 53552074 (RUD 0xffff8880422f1d90)
> > >
> > > 53552074 (RUI 0xffff8880422f35c0)
> > > 22790ee5 (RUD 0xffff8880422f35c0)
> > >
> > > So what we have here is log recovery failing to handle checkpoints
> > > that -start- out of order in the log because it uses the /start lsn/
> > > for recovery LSN sequencing, not the commit record LSN. However, it
> > > uses the commit record ordering for sequencing the recovery of
> > > checkpoints. The code that uses the start lsn for recvery of commit
> > > records appears to be:
> > >
> > > STATIC int
> > > xlog_recover_items_pass2(
> > > struct xlog *log,
> > > struct xlog_recover *trans,
> > > struct list_head *buffer_list,
> > > struct list_head *item_list)
> > > {
> > > struct xlog_recover_item *item;
> > > int error = 0;
> > >
> > > list_for_each_entry(item, item_list, ri_list) {
> > > trace_xfs_log_recover_item_recover(log, trans, item,
> > > XLOG_RECOVER_PASS2);
> > >
> > > if (item->ri_ops->commit_pass2)
> > > error = item->ri_ops->commit_pass2(log, buffer_list,
> > > >>>>>>>>>> item, trans->r_lsn);
> > > if (error)
> > > return error;
> > > }
> > >
> > > return error;
> > > }
> > >
> > > trans->r_lsn is the LSN where the start record for the
> > > commit is found, not the LSN the commit record was found. At run
> > > time, we do all our ordering off start record LSN because new
> > > journal writes cannot be allowed to overwrite the start of the
> > > checkpoint before every item in the checkpoint has been written back
> > > to disk. If we were to use the commit record LSN, the AIL would
> > > allow the tail of the log to move over the start of the checkpoint
> > > before every thing was written.
> > >
> > > However, what is the implication of the AIL having -start lsns- for
> > > checkpoint sequences out of order? And for log recovery finding the
> > > head of the log? I think it means we have the potential for
> > > checkpoint N to be complete in the log an needing recovery, but
> > > checkpoint N+1 is not complete because we've allowed the tail of the
> > > log to move past the start of that checkpoint. That will also cause
> > > corruption log recovery corruption. And I have a sneaking suspiciion
> > > that this may cause fsync/log force issues as well....
> > >
> > > ----
> > >
> > > Ok, time to step back and think about this for a bit. The good news
> > > is that this can only happen with pipelined CIL commits, while means
> > > allowing more than one CIL push to be in progress at once. We can
> > > avoid this whole problem simply by setting the CIL workqueue back to
> > > running just a single ordered work at a time. Call that Plan B.
> > >
> > > The bad news is that this is zero day bug, so all kernels out there
> > > will fail to recovery with out of order start records. Back before
> > > delayed logging, we could have mulitple transactions commit to the
> > > journal in just about any order and nesting, and they used exactly
> > > the same start/commit ordering in recovery that is causing us
> > > problems now. This wouldn't have been noticed, however, because
> > > transactions were tiny back then, not huge checkpoints like we run
> > > now. And if is was, it likely would have been blamed on broken
> > > storage because it's so ephemeral and there was little test
> > > infrastructure that exercised these paths... :/
>
> It's a zero day bug, but at least nobody tripped over this until two
> months ago. I've been dealing on and off with customer escalations
> involving a filesystem with large reflinked images that goes down, and
> then some time after the recovery (minutes to weeks) they hit a
> corruption goto and crash again. I've been able to pin down the
> symptoms to ... the "corrupt" refcount btree block containing partial
> old contents, where the old contents are always aligned to 128 byte
> boundaries, and when Dave mentioned this last night I realized that he
> and I might have fallen into the same thing.
>
> > > What this means is that we can't just make a fix to log recovery
> > > because taking a log from a current kernel and replaying it on an
> > > older kernel might still go very wrong, and do so silently. So I
> > > think we have to fix what we write to the log.
> > >
> > > Hence I think the only way forward here is to recognise that the
> > > AIL, log forces and log recovery all require strictly ordered
> > > checkpoint start records (and hence LSNs) as well as commit records.
> > > We already strictly order the commit records (and this analysis
> > > proves it is working correctly), so we should be able to leverage
> > > the existing functionality to do this.
> > >
> >
> > Ok. I still need to poke at the code and think about this, but what you
> > describe here all makes sense. I wonder a bit if we have the option to
> > fix recovery via some kind of backwards incompatibility, but that
> > requires more thought (didn't we implement or at least consider
> > something like a transient feature bit state some time reasonably
> > recently? I thought we did but I can't quite put my finger on what it
> > was for or if it landed upstream.).
>
> We did -- it was (is) a patchset to turn on log incompat feature bits in
> the superblock, and clear them later on when they're not in use and the
> log is being cleaned. I proposed doing that for atomic file content
> swapping, and Allison's deferred xattrs patchset will want the same to
> protect xattr log intent items.
>
Yes.. that was it, thanks. So IIRC from that, we basically already have
plans to introduce a mechanism to manage this sort of scenario where a
newer kernel can incorporate log format changes and help ensure that an
older kernel won't fumble over log recovery without having to create a
hard backwards incompatibility. Of course there are still cases where
that might be a hurdle (i.e. upgrade failure -> rollback and recovery
scenarios across an fs feature upgrade boundary), but that should be
rare and I don't think the scheme needs to be perfect. There's also the
caveat that a format change associated with a particular isolated
operation is less pervasive (more transient) than something like "start
record ordering," which might be something that effectively has to be
enabled whenever the log is dirty, but otherwise ISTM that the existence
of this mechanism should at least facilitate consideration of a recovery
side fix as a valid option. Hm?
Brian
> > That train of thought aside, ordering start records a la traditional
> > commit record ordering seems like a sane option. I am starting to think
> > that your plan B might actually be a wise plan A, though. I already
> > wished we weren't pushing so much log rewrite/rework through all in one
> > cycle. Now it sounds like we require even more significant (in
> > complexity, if not code churn, as I don't yet have a picture of what
> > "start record ordering" looks like) functional changes to make an
> > otherwise isolated change safe. Just my .02.
>
> /me guesses that we should go with plan B for 5.14, and work on fixing
> whatever's wrong for 5.15. But since it's never possible to tell how
> much time is left until the merge window opens, I'll keep an open
> mind...
>
> > Brian
> >
> > > So I think I see a simple way out of this. I'll sleep on it and see
> > > if if I still think that in the morning...
>
> ...at least until I hear what this simple way out is.
>
> --D
>
> > >
> > > Cheers,
> > >
> > > Dave.
> > > --
> > > Dave Chinner
> > > david@fromorbit.com
> > >
> >
>
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2021-06-17 12:52 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-06-10 15:14 [BUG] generic/475 recovery failure(s) Brian Foster
2021-06-11 19:02 ` Brian Foster
2021-06-11 22:33 ` Dave Chinner
[not found] ` <YMdMehWQoBJC9l0W@bfoster>
2021-06-14 12:56 ` Brian Foster
2021-06-14 23:41 ` Dave Chinner
2021-06-15 4:39 ` Dave Chinner
2021-06-16 7:05 ` Dave Chinner
2021-06-16 20:33 ` Brian Foster
2021-06-16 21:05 ` Darrick J. Wong
2021-06-16 22:54 ` Dave Chinner
2021-06-17 1:28 ` Darrick J. Wong
2021-06-17 12:52 ` Brian Foster
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