From: Dave Jones <davej@redhat.com>
To: Linux Kernel <linux-kernel@vger.kernel.org>
Cc: linux-ext4@vger.kernel.org
Subject: 3.3.7 lockdep report from jbd.
Date: Tue, 29 May 2012 22:37:47 -0400 [thread overview]
Message-ID: <20120530023747.GA1845@redhat.com> (raw)
Just saw this on my backup server during an rsync.
I'll see if I can reproduce it in 3.4 later.
Dave
=========================================================
[ INFO: possible irq lock inversion dependency detected ]
3.3.7-1.fc16.x86_64.debug #1 Not tainted
---------------------------------------------------------
kswapd0/37 just changed the state of lock:
(jbd2_handle){+.+.-.}, at: [<ffffffff8128b457>] start_this_handle+0x507/0x700
but this lock took another, RECLAIM_FS-unsafe lock in the past:
(&isec->lock){+.+.+.}
and interrupts could create inverse lock ordering between them.
other info that might help us debug this:
Possible interrupt unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&isec->lock);
local_irq_disable();
lock(jbd2_handle);
lock(&isec->lock);
<Interrupt>
lock(jbd2_handle);
*** DEADLOCK ***
2 locks held by kswapd0/37:
#0: (shrinker_rwsem){++++..}, at: [<ffffffff8116304c>] shrink_slab+0x3c/0x4b0
#1: (&type->s_umount_key#20){++++..}, at: [<ffffffff811bf654>] grab_super_passive+0x44/0x90
the shortest dependencies between 2nd lock and 1st lock:
-> (&isec->lock){+.+.+.} ops: 582449 {
HARDIRQ-ON-W at:
[<ffffffff810cbf69>] __lock_acquire+0x619/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8169ef94>] mutex_lock_nested+0x74/0x3a0
[<ffffffff812c68e2>] inode_doinit_with_dentry+0xc2/0x650
[<ffffffff812c6e8c>] selinux_d_instantiate+0x1c/0x20
[<ffffffff812bd75b>] security_d_instantiate+0x1b/0x30
[<ffffffff811d4081>] d_instantiate+0x61/0x80
[<ffffffff811d69d3>] d_alloc_root+0x43/0x50
[<ffffffff81237f62>] sysfs_mount+0x182/0x220
[<ffffffff811bffe3>] mount_fs+0x43/0x1b0
[<ffffffff811dd7f2>] vfs_kern_mount+0x72/0x100
[<ffffffff811dd899>] kern_mount_data+0x19/0x30
[<ffffffff81ef30b2>] sysfs_init+0x5a/0xb5
[<ffffffff81ef1862>] mnt_init+0xa1/0x181
[<ffffffff81ef14fc>] vfs_caches_init+0xfb/0x10c
[<ffffffff81ecebf3>] start_kernel+0x3b5/0x3fc
[<ffffffff81ece346>] x86_64_start_reservations+0x131/0x135
[<ffffffff81ece44c>] x86_64_start_kernel+0x102/0x111
SOFTIRQ-ON-W at:
[<ffffffff810cbf98>] __lock_acquire+0x648/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8169ef94>] mutex_lock_nested+0x74/0x3a0
[<ffffffff812c68e2>] inode_doinit_with_dentry+0xc2/0x650
[<ffffffff812c6e8c>] selinux_d_instantiate+0x1c/0x20
[<ffffffff812bd75b>] security_d_instantiate+0x1b/0x30
[<ffffffff811d4081>] d_instantiate+0x61/0x80
[<ffffffff811d69d3>] d_alloc_root+0x43/0x50
[<ffffffff81237f62>] sysfs_mount+0x182/0x220
[<ffffffff811bffe3>] mount_fs+0x43/0x1b0
[<ffffffff811dd7f2>] vfs_kern_mount+0x72/0x100
[<ffffffff811dd899>] kern_mount_data+0x19/0x30
[<ffffffff81ef30b2>] sysfs_init+0x5a/0xb5
[<ffffffff81ef1862>] mnt_init+0xa1/0x181
[<ffffffff81ef14fc>] vfs_caches_init+0xfb/0x10c
[<ffffffff81ecebf3>] start_kernel+0x3b5/0x3fc
[<ffffffff81ece346>] x86_64_start_reservations+0x131/0x135
[<ffffffff81ece44c>] x86_64_start_kernel+0x102/0x111
RECLAIM_FS-ON-W at:
[<ffffffff810ce626>] mark_held_locks+0x86/0x150
[<ffffffff810cedb1>] lockdep_trace_alloc+0x71/0xd0
[<ffffffff811591d6>] __alloc_pages_nodemask+0x86/0xa90
[<ffffffff81194063>] alloc_pages_current+0xa3/0x110
[<ffffffff81154b94>] __get_free_pages+0x14/0x50
[<ffffffff812c6b4b>] inode_doinit_with_dentry+0x32b/0x650
[<ffffffff812c6f56>] sb_finish_set_opts+0xc6/0x260
[<ffffffff812c753c>] selinux_set_mnt_opts+0x32c/0x540
[<ffffffff812c77b0>] superblock_doinit+0x60/0xc0
[<ffffffff812c78f0>] delayed_superblock_init+0x10/0x20
[<ffffffff811bfa41>] iterate_supers+0xf1/0x100
[<ffffffff812cae13>] selinux_complete_init+0x33/0x40
[<ffffffff812da95b>] security_load_policy+0x35b/0x4e0
[<ffffffff812ccb6f>] sel_write_load+0x9f/0x790
[<ffffffff811bb506>] vfs_write+0xb6/0x180
[<ffffffff811bb82d>] sys_write+0x4d/0x90
[<ffffffff816abc29>] system_call_fastpath+0x16/0x1b
INITIAL USE at:
[<ffffffff810cbc70>] __lock_acquire+0x320/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8169ef94>] mutex_lock_nested+0x74/0x3a0
[<ffffffff812c68e2>] inode_doinit_with_dentry+0xc2/0x650
[<ffffffff812c6e8c>] selinux_d_instantiate+0x1c/0x20
[<ffffffff812bd75b>] security_d_instantiate+0x1b/0x30
[<ffffffff811d4081>] d_instantiate+0x61/0x80
[<ffffffff811d69d3>] d_alloc_root+0x43/0x50
[<ffffffff81237f62>] sysfs_mount+0x182/0x220
[<ffffffff811bffe3>] mount_fs+0x43/0x1b0
[<ffffffff811dd7f2>] vfs_kern_mount+0x72/0x100
[<ffffffff811dd899>] kern_mount_data+0x19/0x30
[<ffffffff81ef30b2>] sysfs_init+0x5a/0xb5
[<ffffffff81ef1862>] mnt_init+0xa1/0x181
[<ffffffff81ef14fc>] vfs_caches_init+0xfb/0x10c
[<ffffffff81ecebf3>] start_kernel+0x3b5/0x3fc
[<ffffffff81ece346>] x86_64_start_reservations+0x131/0x135
[<ffffffff81ece44c>] x86_64_start_kernel+0x102/0x111
}
... key at: [<ffffffff829db510>] __key.51824+0x0/0x8
... acquired at:
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8169ef94>] mutex_lock_nested+0x74/0x3a0
[<ffffffff812c68e2>] inode_doinit_with_dentry+0xc2/0x650
[<ffffffff812c6e8c>] selinux_d_instantiate+0x1c/0x20
[<ffffffff812bd75b>] security_d_instantiate+0x1b/0x30
[<ffffffff811d4081>] d_instantiate+0x61/0x80
[<ffffffff812510b6>] ext4_add_nondir+0x76/0x80
[<ffffffff812531b6>] ext4_symlink+0x1a6/0x330
[<ffffffff811ca2d9>] vfs_symlink+0x99/0x100
[<ffffffff811cdb73>] sys_symlinkat+0xb3/0xd0
[<ffffffff811cdba6>] sys_symlink+0x16/0x20
[<ffffffff816abc29>] system_call_fastpath+0x16/0x1b
-> (jbd2_handle){+.+.-.} ops: 20071115 {
HARDIRQ-ON-W at:
[<ffffffff810cbf69>] __lock_acquire+0x619/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8128b486>] start_this_handle+0x536/0x700
[<ffffffff8128b77a>] jbd2__journal_start+0x12a/0x1a0
[<ffffffff8128b803>] jbd2_journal_start+0x13/0x20
[<ffffffff81266cde>] ext4_journal_start_sb+0x7e/0x2a0
[<ffffffff81252907>] ext4_unlink+0x67/0x4b0
[<ffffffff811c9bdf>] vfs_unlink+0x9f/0x110
[<ffffffff811ccf43>] do_unlinkat+0x183/0x1c0
[<ffffffff811cda82>] sys_unlinkat+0x22/0x40
[<ffffffff816abc29>] system_call_fastpath+0x16/0x1b
SOFTIRQ-ON-W at:
[<ffffffff810cbf98>] __lock_acquire+0x648/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8128b486>] start_this_handle+0x536/0x700
[<ffffffff8128b77a>] jbd2__journal_start+0x12a/0x1a0
[<ffffffff8128b803>] jbd2_journal_start+0x13/0x20
[<ffffffff81266cde>] ext4_journal_start_sb+0x7e/0x2a0
[<ffffffff81252907>] ext4_unlink+0x67/0x4b0
[<ffffffff811c9bdf>] vfs_unlink+0x9f/0x110
[<ffffffff811ccf43>] do_unlinkat+0x183/0x1c0
[<ffffffff811cda82>] sys_unlinkat+0x22/0x40
[<ffffffff816abc29>] system_call_fastpath+0x16/0x1b
IN-RECLAIM_FS-W at:
[<ffffffff810cbee0>] __lock_acquire+0x590/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8128b486>] start_this_handle+0x536/0x700
[<ffffffff8128b77a>] jbd2__journal_start+0x12a/0x1a0
[<ffffffff8128b803>] jbd2_journal_start+0x13/0x20
[<ffffffff81266cde>] ext4_journal_start_sb+0x7e/0x2a0
[<ffffffff8124bfb9>] ext4_evict_inode+0x1a9/0x620
[<ffffffff811d91d3>] evict+0xa3/0x1b0
[<ffffffff811d93e5>] iput+0x105/0x200
[<ffffffff811d3bb8>] dentry_iput+0xa8/0x100
[<ffffffff811d53a0>] shrink_dentry_list+0x280/0x4c0
[<ffffffff811d64eb>] prune_dcache_sb+0x15b/0x190
[<ffffffff811bf7d0>] prune_super+0x130/0x1a0
[<ffffffff81163185>] shrink_slab+0x175/0x4b0
[<ffffffff8116762a>] balance_pgdat+0x52a/0x720
[<ffffffff811679c1>] kswapd+0x1a1/0x5b0
[<ffffffff8108b927>] kthread+0xb7/0xc0
[<ffffffff816ad074>] kernel_thread_helper+0x4/0x10
INITIAL USE at:
[<ffffffff810cbc70>] __lock_acquire+0x320/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8128b486>] start_this_handle+0x536/0x700
[<ffffffff8128b77a>] jbd2__journal_start+0x12a/0x1a0
[<ffffffff8128b803>] jbd2_journal_start+0x13/0x20
[<ffffffff81266cde>] ext4_journal_start_sb+0x7e/0x2a0
[<ffffffff81252907>] ext4_unlink+0x67/0x4b0
[<ffffffff811c9bdf>] vfs_unlink+0x9f/0x110
[<ffffffff811ccf43>] do_unlinkat+0x183/0x1c0
[<ffffffff811cda82>] sys_unlinkat+0x22/0x40
[<ffffffff816abc29>] system_call_fastpath+0x16/0x1b
}
... key at: [<ffffffff829cff00>] jbd2_handle_key+0x0/0x8
... acquired at:
[<ffffffff810cae1b>] check_usage_forwards+0x11b/0x150
[<ffffffff810cb7f8>] mark_lock+0x198/0x2f0
[<ffffffff810cbee0>] __lock_acquire+0x590/0x1c20
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8128b486>] start_this_handle+0x536/0x700
[<ffffffff8128b77a>] jbd2__journal_start+0x12a/0x1a0
[<ffffffff8128b803>] jbd2_journal_start+0x13/0x20
[<ffffffff81266cde>] ext4_journal_start_sb+0x7e/0x2a0
[<ffffffff8124bfb9>] ext4_evict_inode+0x1a9/0x620
[<ffffffff811d91d3>] evict+0xa3/0x1b0
[<ffffffff811d93e5>] iput+0x105/0x200
[<ffffffff811d3bb8>] dentry_iput+0xa8/0x100
[<ffffffff811d53a0>] shrink_dentry_list+0x280/0x4c0
[<ffffffff811d64eb>] prune_dcache_sb+0x15b/0x190
[<ffffffff811bf7d0>] prune_super+0x130/0x1a0
[<ffffffff81163185>] shrink_slab+0x175/0x4b0
[<ffffffff8116762a>] balance_pgdat+0x52a/0x720
[<ffffffff811679c1>] kswapd+0x1a1/0x5b0
[<ffffffff8108b927>] kthread+0xb7/0xc0
[<ffffffff816ad074>] kernel_thread_helper+0x4/0x10
stack backtrace:
Pid: 37, comm: kswapd0 Not tainted 3.3.7-1.fc16.x86_64.debug #1
Call Trace:
[<ffffffff810cacf8>] print_irq_inversion_bug.part.19+0x1e8/0x1f0
[<ffffffff810cae1b>] check_usage_forwards+0x11b/0x150
[<ffffffff810cb7f8>] mark_lock+0x198/0x2f0
[<ffffffff810cad00>] ? print_irq_inversion_bug.part.19+0x1f0/0x1f0
[<ffffffff810cbee0>] __lock_acquire+0x590/0x1c20
[<ffffffff8128b6d9>] ? jbd2__journal_start+0x89/0x1a0
[<ffffffff81022023>] ? native_sched_clock+0x13/0x80
[<ffffffff810a3dc5>] ? sched_clock_local+0x25/0x90
[<ffffffff810a3f58>] ? sched_clock_cpu+0xa8/0x110
[<ffffffff810c815d>] ? trace_hardirqs_off+0xd/0x10
[<ffffffff810cdc5d>] lock_acquire+0x9d/0x200
[<ffffffff8128b457>] ? start_this_handle+0x507/0x700
[<ffffffff8128b486>] start_this_handle+0x536/0x700
[<ffffffff8128b457>] ? start_this_handle+0x507/0x700
[<ffffffff811a1c2b>] ? kmem_cache_alloc+0x19b/0x280
[<ffffffff8128b6d9>] ? jbd2__journal_start+0x89/0x1a0
[<ffffffff8128b77a>] jbd2__journal_start+0x12a/0x1a0
[<ffffffff8124bfb9>] ? ext4_evict_inode+0x1a9/0x620
[<ffffffff8128b803>] jbd2_journal_start+0x13/0x20
[<ffffffff81266cde>] ext4_journal_start_sb+0x7e/0x2a0
[<ffffffff8121ec90>] ? __dquot_initialize+0x30/0x180
[<ffffffff811d91c1>] ? evict+0x91/0x1b0
[<ffffffff8124bfb9>] ext4_evict_inode+0x1a9/0x620
[<ffffffff811d91d3>] evict+0xa3/0x1b0
[<ffffffff811d93e5>] iput+0x105/0x200
[<ffffffff811d3bb8>] dentry_iput+0xa8/0x100
[<ffffffff811d53a0>] shrink_dentry_list+0x280/0x4c0
[<ffffffff811d53d0>] ? shrink_dentry_list+0x2b0/0x4c0
[<ffffffff811d64eb>] prune_dcache_sb+0x15b/0x190
[<ffffffff811bf7d0>] prune_super+0x130/0x1a0
[<ffffffff81163185>] shrink_slab+0x175/0x4b0
[<ffffffff811ae776>] ? mem_cgroup_iter+0xf6/0x340
[<ffffffff8116762a>] balance_pgdat+0x52a/0x720
[<ffffffff811679c1>] kswapd+0x1a1/0x5b0
[<ffffffff8108c580>] ? __init_waitqueue_head+0x60/0x60
[<ffffffff81167820>] ? balance_pgdat+0x720/0x720
[<ffffffff8108b927>] kthread+0xb7/0xc0
[<ffffffff816ad074>] kernel_thread_helper+0x4/0x10
[<ffffffff816a3374>] ? retint_restore_args+0x13/0x13
[<ffffffff8108b870>] ? __init_kthread_worker+0x70/0x70
[<ffffffff816ad070>] ? gs_change+0x13/0x13
next reply other threads:[~2012-05-30 2:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-30 2:37 Dave Jones [this message]
2012-06-01 18:36 ` 3.3.7 lockdep report from jbd Jan Kara
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=20120530023747.GA1845@redhat.com \
--to=davej@redhat.com \
--cc=linux-ext4@vger.kernel.org \
--cc=linux-kernel@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.