From: Dave Chinner <david@fromorbit.com>
To: zwu.kernel@gmail.com
Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org,
linuxram@linux.vnet.ibm.com, viro@zeniv.linux.org.uk,
dave@jikos.cz, tytso@mit.edu, cmm@us.ibm.com,
Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Subject: Re: [RFC v3 00/13] vfs: hot data tracking
Date: Tue, 16 Oct 2012 11:11:41 +1100 [thread overview]
Message-ID: <20121016001140.GB2864@dastard> (raw)
In-Reply-To: <1349863655-29320-1-git-send-email-zwu.kernel@gmail.com>
On Wed, Oct 10, 2012 at 06:07:22PM +0800, zwu.kernel@gmail.com wrote:
> From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
>
> NOTE:
>
> The patchset is currently post out mainly to make sure
> it is going in the correct direction and hope to get some
> helpful comments from other guys.
> For more infomation, please check hot_tracking.txt in Documentation
>
# mount -o hot_track /dev/vdc /mnt/scratch
# umount /mnt/scratch
hangs here on XFS:
# echo w > /proc/sysrq-trigger
[ 44.229252] SysRq : Show Blocked State
[ 44.230044] task PC stack pid father
[ 44.231187] umount D ffff88021fd52dc0 3632 4107 4106 0x00000000
[ 44.231946] ffff880212a91bd8 0000000000000086 ffff8802153da300 ffff880212a91fd8
[ 44.231946] ffff880212a91fd8 ffff880212a91fd8 ffff880216cf6340 ffff8802153da300
[ 44.231946] 00000000ffffffff 7fffffffffffffff ffff880212a91d78 ffff880212a91d80
[ 44.231946] Call Trace:
[ 44.231946] [<ffffffff81b6c1b9>] schedule+0x29/0x70
[ 44.231946] [<ffffffff81b6a079>] schedule_timeout+0x159/0x220
[ 44.231946] [<ffffffff8171a2f4>] ? do_raw_spin_lock+0x54/0x120
[ 44.231946] [<ffffffff8171a45d>] ? do_raw_spin_unlock+0x5d/0xb0
[ 44.231946] [<ffffffff81b6bfee>] wait_for_common+0xee/0x190
[ 44.231946] [<ffffffff810b6a10>] ? try_to_wake_up+0x2f0/0x2f0
[ 44.231946] [<ffffffff81b6c18d>] wait_for_completion+0x1d/0x20
[ 44.231946] [<ffffffff8109efec>] flush_workqueue+0x14c/0x3f0
[ 44.231946] [<ffffffff811aad89>] hot_track_exit+0x39/0x180
[ 44.231946] [<ffffffff81454e83>] xfs_fs_put_super+0x23/0x70
[ 44.231946] [<ffffffff8117a991>] generic_shutdown_super+0x61/0xf0
[ 44.231946] [<ffffffff8117aa50>] kill_block_super+0x30/0x80
[ 44.231946] [<ffffffff8117ae45>] deactivate_locked_super+0x45/0x70
[ 44.231946] [<ffffffff8117ba0e>] deactivate_super+0x4e/0x70
[ 44.231946] [<ffffffff81197541>] mntput_no_expire+0x101/0x160
[ 44.231946] [<ffffffff811985b6>] sys_umount+0x76/0x3a0
[ 44.231946] [<ffffffff81b755a9>] system_call_fastpath+0x16/0x1b
because this is stuck:
[ 200.064574] kworker/u:2 S ffff88021fc12dc0 5208 669 2 0x00000000
[ 200.064574] ffff88021532fc60 0000000000000046 ffff88021532c7c0 ffff88021532ffd8
[ 200.064574] ffff88021532ffd8 ffff88021532ffd8 ffffffff81fc3420 ffff88021532c7c0
[ 200.064574] ffff88021532fc50 ffff88021532fc98 ffffffff8221e700 ffffffff8221e700
[ 200.064574] Call Trace:
[ 200.064574] [<ffffffff81b6c1b9>] schedule+0x29/0x70
[ 200.064574] [<ffffffff81b6a03b>] schedule_timeout+0x11b/0x220
[ 200.064574] [<ffffffff810908d0>] ? usleep_range+0x50/0x50
[ 200.064574] [<ffffffff811aa78a>] hot_temperature_update_work+0x16a/0x1c0
[ 200.064574] [<ffffffff8171a2f4>] ? do_raw_spin_lock+0x54/0x120
[ 200.064574] [<ffffffff81b6d3ce>] ? _raw_spin_unlock_irq+0xe/0x30
[ 200.064574] [<ffffffff810b0b3c>] ? finish_task_switch+0x5c/0x100
[ 200.064574] [<ffffffff8109d959>] process_one_work+0x139/0x500
[ 200.064574] [<ffffffff811aa620>] ? hot_range_update+0x1f0/0x1f0
[ 200.064574] [<ffffffff8109e63e>] worker_thread+0x15e/0x460
[ 200.064574] [<ffffffff8109e4e0>] ? manage_workers+0x2f0/0x2f0
[ 200.064574] [<ffffffff810a4b33>] kthread+0x93/0xa0
[ 200.064574] [<ffffffff81b765c4>] kernel_thread_helper+0x4/0x10
[ 200.064574] [<ffffffff810a4aa0>] ? __init_kthread_worker+0x40/0x40
[ 200.064574] [<ffffffff81b765c0>] ? gs_change+0x13/0x13
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
prev parent reply other threads:[~2012-10-16 0:11 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-10 10:07 [RFC v3 00/13] vfs: hot data tracking zwu.kernel
2012-10-10 10:07 ` [RFC v3 01/13] btrfs: add one new mount option '-o hot_track' zwu.kernel
[not found] ` <5075632c.03cc440a.1b33.7805SMTPIN_ADDED@mx.google.com>
2012-10-10 12:21 ` Zhi Yong Wu
2012-10-10 12:21 ` Zhi Yong Wu
2012-10-10 13:11 ` Lukáš Czerner
2012-10-10 13:16 ` Zhi Yong Wu
2012-10-10 16:28 ` David Sterba
2012-10-11 13:41 ` Zhi Yong Wu
2012-10-11 14:35 ` Zhi Yong Wu
2012-10-11 14:41 ` David Sterba
2012-10-11 14:46 ` Zhi Yong Wu
2012-10-10 10:07 ` [RFC v3 02/13] vfs: introduce private radix tree structures zwu.kernel
2012-10-10 15:34 ` David Sterba
2012-10-11 13:35 ` Zhi Yong Wu
2012-10-10 10:07 ` [RFC v3 03/13] vfs: Initialize and free main data structures zwu.kernel
2012-10-10 10:07 ` [RFC v3 04/13] vfs: add function for collecting raw access info zwu.kernel
2012-10-10 10:07 ` [RFC v3 05/13] vfs: add two map arrays zwu.kernel
2012-10-10 10:07 ` [RFC v3 06/13] vfs: add hooks to enable hot data tracking zwu.kernel
2012-10-10 10:07 ` [RFC v3 07/13] vfs: add function for updating map arrays zwu.kernel
2012-10-10 10:07 ` [RFC v3 08/13] vfs: add aging function for old map info zwu.kernel
2012-10-10 10:07 ` [RFC v3 09/13] vfs: add one wq to update map info periodically zwu.kernel
2012-10-16 0:27 ` Dave Chinner
2012-10-17 6:34 ` Zhi Yong Wu
2012-10-18 2:25 ` Zheng Liu
2012-10-18 2:26 ` Zhi Yong Wu
2012-10-10 10:07 ` [RFC v3 10/13] vfs: register one memory shrinker zwu.kernel
2012-10-10 10:07 ` [RFC v3 11/13] vfs: add 3 new ioctl interfaces zwu.kernel
2012-10-15 7:48 ` Dave Chinner
2012-10-15 7:57 ` Zhi Yong Wu
2012-10-16 3:17 ` Dave Chinner
2012-10-16 4:18 ` Zhi Yong Wu
2012-10-19 8:21 ` Zhi Yong Wu
2012-10-10 10:07 ` [RFC v3 12/13] vfs: add debugfs support zwu.kernel
2012-10-10 16:53 ` David Sterba
2012-10-10 21:05 ` David Sterba
2012-10-15 7:55 ` Dave Chinner
2012-10-15 8:15 ` Zhi Yong Wu
2012-10-15 8:04 ` Dave Chinner
2012-10-15 8:47 ` Zhi Yong Wu
2012-10-10 10:07 ` [RFC v3 13/13] vfs: add documentation zwu.kernel
2012-10-15 0:35 ` Zheng Liu
2012-10-15 7:04 ` Zhi Yong Wu
2012-10-15 0:39 ` [RFC v3 00/13] vfs: hot data tracking Zheng Liu
2012-10-15 7:05 ` Zhi Yong Wu
2012-10-15 20:42 ` Dave Chinner
2012-10-17 8:57 ` Zhi Yong Wu
2012-10-18 4:29 ` Dave Chinner
2012-10-18 4:44 ` Zhi Yong Wu
2012-10-18 5:17 ` Dave Chinner
2012-10-18 5:24 ` Zhi Yong Wu
2012-10-19 8:29 ` Zhi Yong Wu
2012-10-16 0:04 ` [PATCH] xfs: add hot tracking support Dave Chinner
2012-11-07 8:38 ` Zhi Yong Wu
2012-11-08 5:13 ` Dave Chinner
2012-10-16 0:11 ` Dave Chinner [this message]
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