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Open Source and information security mailing list archives
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Date: Wed, 16 Feb 2022 13:15:15 +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,
sj@...nel.org, jglisse@...hat.com, dennis@...nel.org, cl@...ux.com,
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_file_write_iter()
[ 6.881168] ===================================================
[ 6.881170] DEPT: Circular dependency has been detected.
[ 6.881172] 5.17.0-rc1-00014-gcf3441bb2012 #2 Tainted: G W
[ 6.881173] ---------------------------------------------------
[ 6.881174] summary
[ 6.881174] ---------------------------------------------------
[ 6.881175] *** DEADLOCK ***
[ 6.881175]
[ 6.881176] context A
[ 6.881176] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0)
[ 6.881178] [W] down_write(mapping.invalidate_lock:0)
[ 6.881179] [E] event(&(&journal->j_wait_commit)->dmap:0)
[ 6.881180]
[ 6.881181] context B
[ 6.881182] [S] __raw_write_lock(&journal->j_state_lock:8)
[ 6.881183] [W] wait(&(&journal->j_wait_commit)->dmap:0)
[ 6.881184] [E] write_unlock(&journal->j_state_lock:8)
[ 6.881185]
[ 6.881185] context C
[ 6.881186] [S] down_write(mapping.invalidate_lock:0)
[ 6.881187] [W] __raw_read_lock(&journal->j_state_lock:8)
[ 6.881188] [E] up_write(mapping.invalidate_lock:0)
[ 6.881189]
[ 6.881190] [S]: start of the event context
[ 6.881190] [W]: the wait blocked
[ 6.881191] [E]: the event not reachable
[ 6.881191] ---------------------------------------------------
[ 6.881192] context A's detail
[ 6.881193] ---------------------------------------------------
[ 6.881193] context A
[ 6.881194] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0)
[ 6.881195] [W] down_write(mapping.invalidate_lock:0)
[ 6.881196] [E] event(&(&journal->j_wait_commit)->dmap:0)
[ 6.881197]
[ 6.881198] [S] (unknown)(&(&journal->j_wait_commit)->dmap:0):
[ 6.881199] (N/A)
[ 6.881199]
[ 6.881200] [W] down_write(mapping.invalidate_lock:0):
[ 6.881201] [<ffffffff812f7cc3>] ext4_da_write_begin+0x183/0x2a0
[ 6.881207] stacktrace:
[ 6.881207] down_write+0x68/0x580
[ 6.881210] ext4_da_write_begin+0x183/0x2a0
[ 6.881213] generic_perform_write+0xa6/0x1c0
[ 6.881215] ext4_buffered_write_iter+0x89/0x100
[ 6.881219] ext4_file_write_iter+0x4a/0x7f0
[ 6.881222] new_sync_write+0x100/0x190
[ 6.881225] vfs_write+0x134/0x360
[ 6.881228] ksys_write+0x4d/0xc0
[ 6.881230] do_syscall_64+0x3a/0x90
[ 6.881233] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 6.881236]
[ 6.881237] [E] event(&(&journal->j_wait_commit)->dmap:0):
[ 6.881238] [<ffffffff810baa53>] __wake_up_common+0x93/0x1a0
[ 6.881240] stacktrace:
[ 6.881240] dept_event+0x12b/0x1f0
[ 6.881243] __wake_up_common+0xb0/0x1a0
[ 6.881244] __wake_up_common_lock+0x65/0x90
[ 6.881246] __jbd2_log_start_commit+0x8a/0xa0
[ 6.881248] jbd2_log_start_commit+0x24/0x40
[ 6.881250] __jbd2_journal_force_commit+0x91/0xb0
[ 6.881251] jbd2_journal_force_commit_nested+0x5/0x10
[ 6.881253] ext4_should_retry_alloc+0x5b/0xb0
[ 6.881254] ext4_da_write_begin+0xf2/0x2a0
[ 6.881256] generic_perform_write+0xa6/0x1c0
[ 6.881258] ext4_buffered_write_iter+0x89/0x100
[ 6.881260] ext4_file_write_iter+0x4a/0x7f0
[ 6.881262] new_sync_write+0x100/0x190
[ 6.881264] vfs_write+0x134/0x360
[ 6.881265] ksys_write+0x4d/0xc0
[ 6.881267] do_syscall_64+0x3a/0x90
[ 6.881268] ---------------------------------------------------
[ 6.881269] context B's detail
[ 6.881270] ---------------------------------------------------
[ 6.881270] context B
[ 6.881271] [S] __raw_write_lock(&journal->j_state_lock:8)
[ 6.881272] [W] wait(&(&journal->j_wait_commit)->dmap:0)
[ 6.881273] [E] write_unlock(&journal->j_state_lock:8)
[ 6.881274]
[ 6.881275] [S] __raw_write_lock(&journal->j_state_lock:8):
[ 6.881276] [<ffffffff81346e9e>] kjournald2+0x7e/0x260
[ 6.881277] stacktrace:
[ 6.881278] _raw_write_lock+0x6e/0x90
[ 6.881280] kjournald2+0x7e/0x260
[ 6.881281] kthread+0xe3/0x110
[ 6.881287] ret_from_fork+0x22/0x30
[ 6.881290]
[ 6.881290] [W] wait(&(&journal->j_wait_commit)->dmap:0):
[ 6.881291] [<ffffffff810bb017>] prepare_to_wait+0x47/0xd0
[ 6.881293] stacktrace:
[ 6.881294] kjournald2+0x164/0x260
[ 6.881295] kthread+0xe3/0x110
[ 6.881297] ret_from_fork+0x22/0x30
[ 6.881298]
[ 6.881299] [E] write_unlock(&journal->j_state_lock:8):
[ 6.881300] [<ffffffff8134700b>] kjournald2+0x1eb/0x260
[ 6.881301] stacktrace:
[ 6.881302] _raw_write_unlock+0x30/0x70
[ 6.881304] kjournald2+0x1eb/0x260
[ 6.881305] kthread+0xe3/0x110
[ 6.881307] ret_from_fork+0x22/0x30
[ 6.881308] ---------------------------------------------------
[ 6.881309] context C's detail
[ 6.881309] ---------------------------------------------------
[ 6.881310] context C
[ 6.881311] [S] down_write(mapping.invalidate_lock:0)
[ 6.881312] [W] __raw_read_lock(&journal->j_state_lock:8)
[ 6.881313] [E] up_write(mapping.invalidate_lock:0)
[ 6.881314]
[ 6.881314] [S] down_write(mapping.invalidate_lock:0):
[ 6.881315] [<ffffffff812f94db>] ext4_setattr+0x3eb/0x8f0
[ 6.881317] stacktrace:
[ 6.881318] down_write+0x8a/0x580
[ 6.881319] ext4_setattr+0x3eb/0x8f0
[ 6.881321] notify_change+0x352/0x4c0
[ 6.881323] do_truncate+0x6a/0xa0
[ 6.881325] path_openat+0x646/0x9c0
[ 6.881327] do_filp_open+0xaf/0x110
[ 6.881329] do_sys_openat2+0x1ff/0x300
[ 6.881330] do_sys_open+0x51/0x60
[ 6.881332] do_syscall_64+0x3a/0x90
[ 6.881333] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 6.881335]
[ 6.881336] [W] __raw_read_lock(&journal->j_state_lock:8):
[ 6.881337] [<ffffffff8133cd87>] start_this_handle+0xa7/0x5e0
[ 6.881340] stacktrace:
[ 6.881340] _raw_read_lock+0x57/0xd0
[ 6.881342] start_this_handle+0xa7/0x5e0
[ 6.881344] jbd2__journal_start+0xe6/0x220
[ 6.881345] __ext4_journal_start_sb+0x11c/0x150
[ 6.881347] ext4_setattr+0x436/0x8f0
[ 6.881349] notify_change+0x352/0x4c0
[ 6.881350] do_truncate+0x6a/0xa0
[ 6.881352] path_openat+0x646/0x9c0
[ 6.881353] do_filp_open+0xaf/0x110
[ 6.881355] do_sys_openat2+0x1ff/0x300
[ 6.881356] do_sys_open+0x51/0x60
[ 6.881358] do_syscall_64+0x3a/0x90
[ 6.881360] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 6.881362]
[ 6.881362] [E] up_write(mapping.invalidate_lock:0):
[ 6.881363] [<ffffffff812f982f>] ext4_setattr+0x73f/0x8f0
[ 6.881365] stacktrace:
[ 6.881365] up_write+0x36/0x170
[ 6.881369] ext4_setattr+0x73f/0x8f0
[ 6.881370] notify_change+0x352/0x4c0
[ 6.881372] do_truncate+0x6a/0xa0
[ 6.881373] path_openat+0x646/0x9c0
[ 6.881375] do_filp_open+0xaf/0x110
[ 6.881376] do_sys_openat2+0x1ff/0x300
[ 6.881378] do_sys_open+0x51/0x60
[ 6.881379] do_syscall_64+0x3a/0x90
[ 6.881381] entry_SYSCALL_64_after_hwframe+0x44/0xae
[ 6.881383] ---------------------------------------------------
[ 6.881383] information that might be helpful
[ 6.881384] ---------------------------------------------------
[ 6.881385] CPU: 2 PID: 628 Comm: rs:main Q:Reg Tainted: G W 5.17.0-rc1-00014-gcf3441bb2012 #2
[ 6.881387] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[ 6.881389] Call Trace:
[ 6.881390] <TASK>
[ 6.881391] dump_stack_lvl+0x44/0x57
[ 6.881394] print_circle+0x384/0x510
[ 6.881396] ? __kernel_text_address+0x9/0x30
[ 6.881398] ? print_circle+0x510/0x510
[ 6.881400] cb_check_dl+0x58/0x60
[ 6.881401] bfs+0xdc/0x1b0
[ 6.881404] add_dep+0x94/0x120
[ 6.881406] do_event.isra.22+0x284/0x300
[ 6.881408] ? __wake_up_common+0x93/0x1a0
[ 6.881409] dept_event+0x12b/0x1f0
[ 6.881411] __wake_up_common+0xb0/0x1a0
[ 6.881413] __wake_up_common_lock+0x65/0x90
[ 6.881415] __jbd2_log_start_commit+0x8a/0xa0
[ 6.881417] jbd2_log_start_commit+0x24/0x40
[ 6.881419] __jbd2_journal_force_commit+0x91/0xb0
[ 6.881421] jbd2_journal_force_commit_nested+0x5/0x10
[ 6.881422] ext4_should_retry_alloc+0x5b/0xb0
[ 6.881424] ext4_da_write_begin+0xf2/0x2a0
[ 6.881427] generic_perform_write+0xa6/0x1c0
[ 6.881429] ext4_buffered_write_iter+0x89/0x100
[ 6.881432] ext4_file_write_iter+0x4a/0x7f0
[ 6.881435] new_sync_write+0x100/0x190
[ 6.881438] vfs_write+0x134/0x360
[ 6.881441] ksys_write+0x4d/0xc0
[ 6.881442] ? trace_hardirqs_on+0x38/0xe0
[ 6.881445] do_syscall_64+0x3a/0x90
[ 6.881447] entry_SYSCALL_64_after_hwframe+0x44/0xae
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