From: Christopher Layne <clayne@anodized.com>
To: xfs@oss.sgi.com
Subject: xfs_fsr: circular dependency under 2.6.24-rc6
Date: Sat, 12 Jan 2008 17:46:59 -0800 [thread overview]
Message-ID: <20080113014659.GO26626@ns1.anodized.com> (raw)
=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.24-rc6 #1
-------------------------------------------------------
xfs_fsr/5694 is trying to acquire lock:
(&mm->mmap_sem){----}, at: [<ffffffff802a9f8f>] dio_get_page+0x4b/0x184
but task is already holding lock:
(&(&ip->i_iolock)->mr_lock){----}, at: [<ffffffff802f4c5f>] xfs_ilock+0x4d/0x8d
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&(&ip->i_iolock)->mr_lock){----}:
[<ffffffff80250f04>] __lock_acquire+0xb2b/0xd3f
[<ffffffff802f4c38>] xfs_ilock+0x26/0x8d
[<ffffffff8025119c>] lock_acquire+0x84/0xa8
[<ffffffff802f4c38>] xfs_ilock+0x26/0x8d
[<ffffffff8024fd51>] mark_held_locks+0x58/0x72
[<ffffffff802497c2>] down_write_nested+0x39/0x45
[<ffffffff802f4c38>] xfs_ilock+0x26/0x8d
[<ffffffff802f4e39>] xfs_ireclaim+0x37/0x7a
[<ffffffff8030ec2b>] xfs_finish_reclaim+0x15d/0x16b
[<ffffffff8031b671>] xfs_fs_clear_inode+0xca/0xeb
[<ffffffff80298535>] clear_inode+0x94/0xeb
[<ffffffff80298835>] dispose_list+0x58/0xfa
[<ffffffff80298bc4>] invalidate_inodes+0xd9/0xf7
[<ffffffff80288381>] generic_shutdown_super+0x39/0xf3
[<ffffffff80288448>] kill_block_super+0xd/0x1e
[<ffffffff802884f3>] deactivate_super+0x49/0x61
[<ffffffff8029addc>] sys_umount+0x1f5/0x206
[<ffffffff80477917>] trace_hardirqs_on_thunk+0x35/0x3a
[<ffffffff8024ff40>] trace_hardirqs_on+0x121/0x14c
[<ffffffff80477917>] trace_hardirqs_on_thunk+0x35/0x3a
[<ffffffff8020b6ce>] system_call+0x7e/0x83
[<ffffffffffffffff>] 0xffffffffffffffff
-> #1 (iprune_mutex){--..}:
[<ffffffff80250f04>] __lock_acquire+0xb2b/0xd3f
[<ffffffff80298919>] shrink_icache_memory+0x42/0x214
[<ffffffff8025119c>] lock_acquire+0x84/0xa8
[<ffffffff80298919>] shrink_icache_memory+0x42/0x214
[<ffffffff802510f7>] __lock_acquire+0xd1e/0xd3f
[<ffffffff80298919>] shrink_icache_memory+0x42/0x214
[<ffffffff80476bba>] mutex_lock_nested+0xfd/0x297
[<ffffffff80295968>] prune_dcache+0xd8/0x184
[<ffffffff80298919>] shrink_icache_memory+0x42/0x214
[<ffffffff802694ff>] shrink_slab+0xe7/0x15a
[<ffffffff8026a1eb>] try_to_free_pages+0x17a/0x24b
[<ffffffff80264c7b>] __alloc_pages+0x208/0x34e
[<ffffffff8026dcd0>] handle_mm_fault+0x211/0x66d
[<ffffffff80479eda>] do_page_fault+0x3bd/0x743
[<ffffffff80333ecb>] __up_write+0x21/0x112
[<ffffffff80333ecb>] __up_write+0x21/0x112
[<ffffffff80478124>] _spin_unlock_irqrestore+0x3e/0x44
[<ffffffff80477917>] trace_hardirqs_on_thunk+0x35/0x3a
[<ffffffff8024ff40>] trace_hardirqs_on+0x121/0x14c
[<ffffffff8047834d>] error_exit+0x0/0xa9
[<ffffffffffffffff>] 0xffffffffffffffff
-> #0 (&mm->mmap_sem){----}:
[<ffffffff80250e09>] __lock_acquire+0xa30/0xd3f
[<ffffffff802a9f8f>] dio_get_page+0x4b/0x184
[<ffffffff8025119c>] lock_acquire+0x84/0xa8
[<ffffffff802a9f8f>] dio_get_page+0x4b/0x184
[<ffffffff80476ed4>] down_read+0x32/0x3b
[<ffffffff802a9f8f>] dio_get_page+0x4b/0x184
[<ffffffff80338b47>] __spin_lock_init+0x29/0x47
[<ffffffff802aaa7c>] __blockdev_direct_IO+0x3fc/0x9c6
[<ffffffff8024e2f5>] lockdep_init_map+0x8f/0x460
[<ffffffff803143de>] xfs_vm_direct_IO+0x101/0x134
[<ffffffff803146ee>] xfs_get_blocks_direct+0x0/0x11
[<ffffffff80313e95>] xfs_end_io_direct+0x0/0x82
[<ffffffff80333ecb>] __up_write+0x21/0x112
[<ffffffff8026022f>] generic_file_direct_IO+0xcd/0x103
[<ffffffff802602c5>] generic_file_direct_write+0x60/0xfd
[<ffffffff8031b1f9>] xfs_write+0x4ed/0x760
[<ffffffff802f4bbf>] xfs_iunlock+0x37/0x85
[<ffffffff8031aced>] xfs_read+0x1f1/0x210
[<ffffffff8028637d>] do_sync_write+0xd1/0x118
[<ffffffff802510f7>] __lock_acquire+0xd1e/0xd3f
[<ffffffff80246df0>] autoremove_wake_function+0x0/0x2e
[<ffffffff802b7cc5>] dnotify_parent+0x1f/0x6d
[<ffffffff80286ace>] vfs_write+0xad/0x136
[<ffffffff80287005>] sys_write+0x45/0x6e
[<ffffffff8020b6ce>] system_call+0x7e/0x83
[<ffffffffffffffff>] 0xffffffffffffffff
other info that might help us debug this:
1 lock held by xfs_fsr/5694:
#0: (&(&ip->i_iolock)->mr_lock){----}, at: [<ffffffff802f4c5f>] xfs_ilock+0x4d/0x8d
stack backtrace:
Pid: 5694, comm: xfs_fsr Not tainted 2.6.24-rc6 #1
Call Trace:
[<ffffffff8024f0b3>] print_circular_bug_tail+0x69/0x72
[<ffffffff80250e09>] __lock_acquire+0xa30/0xd3f
[<ffffffff802a9f8f>] dio_get_page+0x4b/0x184
[<ffffffff8025119c>] lock_acquire+0x84/0xa8
[<ffffffff802a9f8f>] dio_get_page+0x4b/0x184
[<ffffffff80476ed4>] down_read+0x32/0x3b
[<ffffffff802a9f8f>] dio_get_page+0x4b/0x184
[<ffffffff80338b47>] __spin_lock_init+0x29/0x47
[<ffffffff802aaa7c>] __blockdev_direct_IO+0x3fc/0x9c6
[<ffffffff8024e2f5>] lockdep_init_map+0x8f/0x460
[<ffffffff803143de>] xfs_vm_direct_IO+0x101/0x134
[<ffffffff803146ee>] xfs_get_blocks_direct+0x0/0x11
[<ffffffff80313e95>] xfs_end_io_direct+0x0/0x82
[<ffffffff80333ecb>] __up_write+0x21/0x112
[<ffffffff8026022f>] generic_file_direct_IO+0xcd/0x103
[<ffffffff802602c5>] generic_file_direct_write+0x60/0xfd
[<ffffffff8031b1f9>] xfs_write+0x4ed/0x760
[<ffffffff802f4bbf>] xfs_iunlock+0x37/0x85
[<ffffffff8031aced>] xfs_read+0x1f1/0x210
[<ffffffff8028637d>] do_sync_write+0xd1/0x118
[<ffffffff802510f7>] __lock_acquire+0xd1e/0xd3f
[<ffffffff80246df0>] autoremove_wake_function+0x0/0x2e
[<ffffffff802b7cc5>] dnotify_parent+0x1f/0x6d
[<ffffffff80286ace>] vfs_write+0xad/0x136
[<ffffffff80287005>] sys_write+0x45/0x6e
[<ffffffff8020b6ce>] system_call+0x7e/0x83
--
xfs issue or kernel issue?
-cl
next reply other threads:[~2008-01-13 1:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-13 1:46 Christopher Layne [this message]
2008-01-14 0:18 ` xfs_fsr: circular dependency under 2.6.24-rc6 Lachlan McIlroy
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=20080113014659.GO26626@ns1.anodized.com \
--to=clayne@anodized.com \
--cc=xfs@oss.sgi.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.