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Open Source and information security mailing list archives
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Date: Wed, 16 Feb 2022 13:15:14 +0900
From: Byungchul Park <byungchul.park@....com>
To: tytso@....edu, adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org
Cc: torvalds@...ux-foundation.org, mingo@...hat.com,
linux-kernel@...r.kernel.org, peterz@...radead.org,
will@...nel.org, tglx@...utronix.de, rostedt@...dmis.org,
joel@...lfernandes.org, sashal@...nel.org, daniel.vetter@...ll.ch,
chris@...is-wilson.co.uk, duyuyang@...il.com,
johannes.berg@...el.com, tj@...nel.org, willy@...radead.org,
david@...morbit.com, amir73il@...il.com, bfields@...ldses.org,
gregkh@...uxfoundation.org, kernel-team@....com,
linux-mm@...ck.org, akpm@...ux-foundation.org, mhocko@...nel.org,
minchan@...nel.org, hannes@...xchg.org, vdavydov.dev@...il.com,
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penberg@...nel.org, rientjes@...gle.com, vbabka@...e.cz,
ngupta@...are.org, linux-block@...r.kernel.org, axboe@...nel.dk,
paolo.valente@...aro.org, josef@...icpanda.com,
linux-fsdevel@...r.kernel.org, viro@...iv.linux.org.uk,
jack@...e.cz, jlayton@...nel.org, dan.j.williams@...el.com,
hch@...radead.org, djwong@...nel.org,
dri-devel@...ts.freedesktop.org, airlied@...ux.ie,
rodrigosiqueiramelo@...il.com, melissa.srw@...il.com,
hamohammed.sa@...il.com
Subject: Report in ext4_da_write_begin()
[ 6.881473] ===================================================
[ 6.881474] DEPT: Circular dependency has been detected.
[ 6.881475] 5.17.0-rc1-00014-gcf3441bb2012 #2 Tainted: G W
[ 6.881476] ---------------------------------------------------
[ 6.881476] summary
[ 6.881477] ---------------------------------------------------
[ 6.881478] *** DEADLOCK ***
[ 6.881478]
[ 6.881478] context A
[ 6.881479] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0)
[ 6.881480] [W] __raw_read_lock(&journal->j_state_lock:8)
[ 6.881481] [E] event(&(&journal->j_wait_commit)->dmap:0)
[ 6.881482]
[ 6.881483] context B
[ 6.881483] [S] __raw_write_lock(&journal->j_state_lock:8)
[ 6.881484] [W] wait(&(&journal->j_wait_commit)->dmap:0)
[ 6.881485] [E] write_unlock(&journal->j_state_lock:8)
[ 6.881486]
[ 6.881487] [S]: start of the event context
[ 6.881487] [W]: the wait blocked
[ 6.881488] [E]: the event not reachable
[ 6.881489] ---------------------------------------------------
[ 6.881489] context A's detail
[ 6.881490] ---------------------------------------------------
[ 6.881490] context A
[ 6.881491] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0)
[ 6.881492] [W] __raw_read_lock(&journal->j_state_lock:8)
[ 6.881493] [E] event(&(&journal->j_wait_commit)->dmap:0)
[ 6.881494]
[ 6.881495] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0):
[ 6.881496] (N/A)
[ 6.881496]
[ 6.881497] [W] __raw_read_lock(&journal->j_state_lock:8):
[ 6.881498] [<ffffffff8133cd87>] start_this_handle+0xa7/0x5e0
[ 6.881500] stacktrace:
[ 6.881500] _raw_read_lock+0x57/0xd0
[ 6.881502] start_this_handle+0xa7/0x5e0
[ 6.881504] jbd2__journal_start+0xe6/0x220
[ 6.881506] __ext4_journal_start_sb+0x11c/0x150
[ 6.881508] ext4_truncate+0x167/0x4b0
[ 6.881509] ext4_da_write_begin+0x19c/0x2a0
[ 6.881511] generic_perform_write+0xa6/0x1c0
[ 6.881512] ext4_buffered_write_iter+0x89/0x100
[ 6.881515] ext4_file_write_iter+0x4a/0x7f0
[ 6.881516] new_sync_write+0x100/0x190
[ 6.881518] vfs_write+0x134/0x360
[ 6.881521] ksys_write+0x4d/0xc0
[ 6.881522] do_syscall_64+0x3a/0x90
[ 6.881523] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 6.881525]
[ 6.881526] [E] event(&(&journal->j_wait_commit)->dmap:0):
[ 6.881527] [<ffffffff810baa53>] __wake_up_common+0x93/0x1a0
[ 6.881529] stacktrace:
[ 6.881529] dept_event+0x12b/0x1f0
[ 6.881531] __wake_up_common+0xb0/0x1a0
[ 6.881532] __wake_up_common_lock+0x65/0x90
[ 6.881533] __jbd2_log_start_commit+0x8a/0xa0
[ 6.881535] jbd2_log_start_commit+0x24/0x40
[ 6.881536] __jbd2_journal_force_commit+0x91/0xb0
[ 6.881538] jbd2_journal_force_commit_nested+0x5/0x10
[ 6.881540] ext4_should_retry_alloc+0x5b/0xb0
[ 6.881541] ext4_da_write_begin+0xf2/0x2a0
[ 6.881543] generic_perform_write+0xa6/0x1c0
[ 6.881544] ext4_buffered_write_iter+0x89/0x100
[ 6.881546] ext4_file_write_iter+0x4a/0x7f0
[ 6.881548] new_sync_write+0x100/0x190
[ 6.881550] vfs_write+0x134/0x360
[ 6.881552] ksys_write+0x4d/0xc0
[ 6.881553] do_syscall_64+0x3a/0x90
[ 6.881555] ---------------------------------------------------
[ 6.881556] context B's detail
[ 6.881556] ---------------------------------------------------
[ 6.881557] context B
[ 6.881558] [S] __raw_write_lock(&journal->j_state_lock:8)
[ 6.881559] [W] wait(&(&journal->j_wait_commit)->dmap:0)
[ 6.881560] [E] write_unlock(&journal->j_state_lock:8)
[ 6.881561]
[ 6.881561] [S] __raw_write_lock(&journal->j_state_lock:8):
[ 6.881562] [<ffffffff81346e9e>] kjournald2+0x7e/0x260
[ 6.881564] stacktrace:
[ 6.881564] _raw_write_lock+0x6e/0x90
[ 6.881566] kjournald2+0x7e/0x260
[ 6.881567] kthread+0xe3/0x110
[ 6.881569] ret_from_fork+0x22/0x30
[ 6.881571]
[ 6.881572] [W] wait(&(&journal->j_wait_commit)->dmap:0):
[ 6.881573] [<ffffffff810bb017>] prepare_to_wait+0x47/0xd0
[ 6.881574] stacktrace:
[ 6.881575] kjournald2+0x164/0x260
[ 6.881576] kthread+0xe3/0x110
[ 6.881578] ret_from_fork+0x22/0x30
[ 6.881579]
[ 6.881580] [E] write_unlock(&journal->j_state_lock:8):
[ 6.881581] [<ffffffff8134700b>] kjournald2+0x1eb/0x260
[ 6.881582] stacktrace:
[ 6.881583] _raw_write_unlock+0x30/0x70
[ 6.881585] kjournald2+0x1eb/0x260
[ 6.881586] kthread+0xe3/0x110
[ 6.881588] ret_from_fork+0x22/0x30
[ 6.881589] ---------------------------------------------------
[ 6.881590] information that might be helpful
[ 6.881590] ---------------------------------------------------
[ 6.881591] CPU: 2 PID: 628 Comm: rs:main Q:Reg Tainted: G W 5.17.0-rc1-00014-gcf3441bb2012 #2
[ 6.881593] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[ 6.881594] Call Trace:
[ 6.881595] <TASK>
[ 6.881596] dump_stack_lvl+0x44/0x57
[ 6.881597] print_circle+0x384/0x510
[ 6.881599] ? __kernel_text_address+0x9/0x30
[ 6.881601] ? print_circle+0x510/0x510
[ 6.881603] cb_check_dl+0x58/0x60
[ 6.881605] bfs+0xdc/0x1b0
[ 6.881607] add_dep+0x94/0x120
[ 6.881609] do_event.isra.22+0x284/0x300
[ 6.881611] ? __wake_up_common+0x93/0x1a0
[ 6.881612] dept_event+0x12b/0x1f0
[ 6.881615] __wake_up_common+0xb0/0x1a0
[ 6.881617] __wake_up_common_lock+0x65/0x90
[ 6.881619] __jbd2_log_start_commit+0x8a/0xa0
[ 6.881621] jbd2_log_start_commit+0x24/0x40
[ 6.881622] __jbd2_journal_force_commit+0x91/0xb0
[ 6.881624] jbd2_journal_force_commit_nested+0x5/0x10
[ 6.881626] ext4_should_retry_alloc+0x5b/0xb0
[ 6.881628] ext4_da_write_begin+0xf2/0x2a0
[ 6.881630] generic_perform_write+0xa6/0x1c0
[ 6.881633] ext4_buffered_write_iter+0x89/0x100
[ 6.881636] ext4_file_write_iter+0x4a/0x7f0
[ 6.881638] new_sync_write+0x100/0x190
[ 6.881642] vfs_write+0x134/0x360
[ 6.881644] ksys_write+0x4d/0xc0
[ 6.881645] ? trace_hardirqs_on+0x38/0xe0
[ 6.881648] do_syscall_64+0x3a/0x90
[ 6.881650] entry_SYSCALL_64_after_hwframe+0x44/0xae
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