From: Denys Fedoryschenko <denys@visp.net.lb>
To: linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: XFS lock warning, 2.6.29-rc8
Date: Sun, 15 Mar 2009 14:59:01 +0200 [thread overview]
Message-ID: <200903151459.01320.denys@visp.net.lb> (raw)
hi
Here is what i got suddently. But seems everything is working.
If any other information required, please let me know.
/dev/md2 on / type xfs (rw,noatime)
[39993.560200]
[39993.560202] =======================================================
[39993.560206] [ INFO: possible circular locking dependency detected ]
[39993.560208] 2.6.29-rc8-home1 #2
[39993.560210] -------------------------------------------------------
[39993.560212] kmail/5077 is trying to acquire lock:
[39993.560214] (&(&ip->i_iolock)->mr_lock){----}, at: [<ffffffff811426aa>]
xfs_ilock+0x27/0x79
[39993.560222]
[39993.560223] but task is already holding lock:
[39993.560225] (&mm->mmap_sem){----}, at: [<ffffffff81095090>]
sys_munmap+0x32/0x59
[39993.560230]
[39993.560231] which lock already depends on the new lock.
[39993.560232]
[39993.560233]
[39993.560234] the existing dependency chain (in reverse order) is:
[39993.560236]
[39993.560236] -> #1 (&mm->mmap_sem){----}:
[39993.560240] [<ffffffff8105b9fc>] __lock_acquire+0x12b0/0x161a
[39993.560244] [<ffffffff8105bdbb>] lock_acquire+0x55/0x71
[39993.560247] [<ffffffff813fc2a5>] down_read+0x34/0x41
[39993.560252] [<ffffffff813ffbfe>] do_page_fault+0x3fa/0x848
[39993.560256] [<ffffffff813fda2f>] page_fault+0x1f/0x30
[39993.560258] [<ffffffff8107e13d>] generic_file_aio_read+0x35f/0x5da
[39993.560268] [<ffffffff811650d8>] xfs_read+0x17d/0x1f5
[39993.560272] [<ffffffff81161646>] xfs_file_aio_read+0x5f/0x61
[39993.560275] [<ffffffff810a88ff>] do_sync_read+0xe7/0x12d
[39993.560284] [<ffffffff810a928c>] vfs_read+0xab/0x134
[39993.560287] [<ffffffff810a93d9>] sys_read+0x47/0x6f
[39993.560289] [<ffffffff8100c0db>] system_call_fastpath+0x16/0x1b
[39993.560293] [<ffffffffffffffff>] 0xffffffffffffffff
[39993.560302]
[39993.560302] -> #0 (&(&ip->i_iolock)->mr_lock){----}:
[39993.560306] [<ffffffff8105b6cb>] __lock_acquire+0xf7f/0x161a
[39993.560309] [<ffffffff8105bdbb>] lock_acquire+0x55/0x71
[39993.560312] [<ffffffff8104ebde>] down_write_nested+0x37/0x46
[39993.560316] [<ffffffff811426aa>] xfs_ilock+0x27/0x79
[39993.560318] [<ffffffff8115b40e>] xfs_inactive+0x14d/0x411
[39993.560322] [<ffffffff8116552f>] xfs_fs_clear_inode+0x83/0x85
[39993.560325] [<ffffffff810ba8f7>] clear_inode+0x8a/0xe3
[39993.560329] [<ffffffff810bb044>] generic_delete_inode+0xf8/0x173
[39993.560332] [<ffffffff810bb0d6>] generic_drop_inode+0x17/0x1d5
[39993.560335] [<ffffffff810ba1c7>] iput+0x61/0x65
[39993.560338] [<ffffffff810b7554>] dentry_iput+0xa9/0xc1
[39993.560341] [<ffffffff810b7651>] d_kill+0x40/0x60
[39993.560344] [<ffffffff810b942d>] dput+0x141/0x14e
[39993.560347] [<ffffffff810a9a85>] __fput+0x173/0x198
[39993.560350] [<ffffffff810a9ac2>] fput+0x18/0x1a
[39993.560353] [<ffffffff8109411e>] remove_vma+0x3e/0x63
[39993.560355] [<ffffffff8109503c>] do_munmap+0x2e9/0x30b
[39993.560358] [<ffffffff8109509e>] sys_munmap+0x40/0x59
[39993.560361] [<ffffffff8100c0db>] system_call_fastpath+0x16/0x1b
[39993.560363] [<ffffffffffffffff>] 0xffffffffffffffff
[39993.560366]
[39993.560367] other info that might help us debug this:
[39993.560368]
[39993.560370] 1 lock held by kmail/5077:
[39993.560371] #0: (&mm->mmap_sem){----}, at: [<ffffffff81095090>]
sys_munmap+0x32/0x59
[39993.560376]
[39993.560377] stack backtrace:
[39993.560379] Pid: 5077, comm: kmail Not tainted 2.6.29-rc8-home1 #2
[39993.560381] Call Trace:
[39993.560384] [<ffffffff8105a366>] print_circular_bug_tail+0xc5/0xd0
[39993.560388] [<ffffffff8105b6cb>] __lock_acquire+0xf7f/0x161a
[39993.560391] [<ffffffff8105bdbb>] lock_acquire+0x55/0x71
[39993.560393] [<ffffffff811426aa>] ? xfs_ilock+0x27/0x79
[39993.560396] [<ffffffff8104ebde>] down_write_nested+0x37/0x46
[39993.560399] [<ffffffff811426aa>] ? xfs_ilock+0x27/0x79
[39993.560401] [<ffffffff811426aa>] xfs_ilock+0x27/0x79
[39993.560404] [<ffffffff8115b40e>] xfs_inactive+0x14d/0x411
[39993.560407] [<ffffffff8116552f>] xfs_fs_clear_inode+0x83/0x85
[39993.560410] [<ffffffff810ba8f7>] clear_inode+0x8a/0xe3
[39993.560413] [<ffffffff810bb044>] generic_delete_inode+0xf8/0x173
[39993.560416] [<ffffffff810bb0d6>] generic_drop_inode+0x17/0x1d5
[39993.560419] [<ffffffff810ba1c7>] iput+0x61/0x65
[39993.560421] [<ffffffff810b7554>] dentry_iput+0xa9/0xc1
[39993.560424] [<ffffffff810b7651>] d_kill+0x40/0x60
[39993.560427] [<ffffffff810b942d>] dput+0x141/0x14e
[39993.560429] [<ffffffff810a9a85>] __fput+0x173/0x198
[39993.560432] [<ffffffff810a9ac2>] fput+0x18/0x1a
[39993.560434] [<ffffffff8109411e>] remove_vma+0x3e/0x63
[39993.560437] [<ffffffff8109503c>] do_munmap+0x2e9/0x30b
[39993.560440] [<ffffffff8109509e>] sys_munmap+0x40/0x59
[39993.560442] [<ffffffff8100c0db>] system_call_fastpath+0x16/0x1b
next reply other threads:[~2009-03-15 12:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-15 12:59 Denys Fedoryschenko [this message]
2009-03-15 22:19 ` XFS lock warning, 2.6.29-rc8 Dave Chinner
2009-03-15 22:19 ` Dave Chinner
2009-03-18 7:13 ` fput under mmap_sem Christoph Hellwig
2009-03-18 7:13 ` Christoph Hellwig
2009-03-18 12:37 ` Nick Piggin
2009-03-18 12:37 ` Nick Piggin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=200903151459.01320.denys@visp.net.lb \
--to=denys@visp.net.lb \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-xfs@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.