From: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
To: John Garry <john.garry@linux.dev>
Cc: "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>,
"Darrick J. Wong" <djwong@kernel.org>
Subject: Re: [bug report] fstests generic/774 hang again
Date: Wed, 16 Sep 2026 11:53:41 +0900 [thread overview]
Message-ID: <aqoEOImeqWI9HG1F@shinmob> (raw)
In-Reply-To: <aqkv-2opTlWD6bzU@shinmob>
On Sep 15, 2026 / 20:48, Shin'ichiro Kawasaki wrote:
> On Sep 15, 2026 / 11:00, John Garry wrote:
> > On 9/15/26 10:34, Shin'ichiro Kawasaki wrote:
> > > I observe the fstests test case generic/774 hangs, when I run it for xfs on 8GiB
> > > TCMU fileio devices. Actually I once reported this hang symptom in last October,
> > > and Darrick and John kindly took some actions [1]. Since then, the hang
> > > disappeared and I have not observed the hang almost one year. However, my test
> > > system started reporting the hang again last week.
> > >
> > > [1] https://lore.kernel.org/linux-xfs/cmk52aqexackyz65phxgme55a3tdrermo3o4skr4lo4pwvvvcp@jmcblnfikbp2/#t
> >
> > This was the series to resolve, I think:
> > https://lore.kernel.org/fstests/176279908967.605950.2192923313361120314.stgit@frogsfrogsfrogs/T/#t
> >
> > As an experiment, can you reduce the file size further, like:
> >
> > --- a/tests/generic/774
> > +++ b/tests/generic/774
> > @@ -29,7 +29,7 @@ aw_bsize=$(_max "$awu_min_write" "$((awu_max_write/4))")
> > fsbsize=$(_get_block_size $SCRATCH_MNT)
> >
> > threads=$(_min "$(($(nproc) * 2 * LOAD_FACTOR))" "100")
> > -filesize=$((aw_bsize * threads * 10))
> > +filesize=$((aw_bsize * threads))
> > depth=$threads
> > aw_io_size=$((filesize / threads))
> > aw_io_inc=$aw_io_size
>
> Thanks for the response. I repeated the test case 100 times with the change
> above, and I did not observe the hang. The change looks avoiding the hang.
>
> >
> > >
> > > FYI, here I attache the kernel message [2].
> >
> > Is mainline baseline hanging, i.e. v7.3-rc2?
>
> I will try this out tomorrow.
I observed the hang with the mainline v7.3-rc2 kernel also:
[ 516.678848] [ T5360] run fstests generic/774 at 2026-09-16 11:01:26
[ 516.808855] [ T2710] MODE SENSE: unimplemented page/subpage: 0x0a/0x05
[ 519.197067] [ T2825] MODE SENSE: unimplemented page/subpage: 0x0a/0x05
[ 519.325438] [ T6378] XFS (sdh): Mounting V5 Filesystem f004c5a8-b5fd-4f05-9ea1-977c32c9fc76
[ 519.342073] [ T6378] XFS (sdh): Ending clean mount
[ 519.704393] [ T6429] XFS (sdh): Unmounting Filesystem f004c5a8-b5fd-4f05-9ea1-977c32c9fc76
[ 520.341237] [ T2904] MODE SENSE: unimplemented page/subpage: 0x0a/0x05
[ 520.461538] [ T6477] XFS (sdh): Mounting V5 Filesystem dcd73d62-bc80-42a1-9893-7815befb6fd1
[ 520.480790] [ T6477] XFS (sdh): Ending clean mount
[ 862.484216] [ T169] INFO: task kworker/0:0:9 blocked for more than 122 seconds.
[ 862.486738] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 862.488497] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 862.491457] [ T169] task:kworker/0:0 state:D stack:0 pid:9 tgid:9 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 862.493590] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 862.494696] [ T169] Call Trace:
[ 862.496681] [ T169] <TASK>
[ 862.497741] [ T169] __schedule+0xc86/0x1b10
[ 862.499020] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 862.500434] [ T169] ? __pfx___schedule+0x10/0x10
[ 862.501999] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.503638] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 862.505095] [ T169] ? lock_acquire+0x11a/0x140
[ 862.506540] [ T169] schedule+0xe5/0x2e0
[ 862.507546] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.508858] [ T169] schedule_preempt_disabled+0x16/0x30
[ 862.510463] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 862.511857] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 862.513526] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 862.514807] [ T169] ? lock_acquire+0x11a/0x140
[ 862.516272] [ T169] down_write_nested+0x1c0/0x1f0
[ 862.517706] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 862.519465] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 862.522491] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 862.525468] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 862.528537] [ T169] ? lock_acquire+0x11a/0x140
[ 862.529870] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 862.531028] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 862.533879] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 862.536645] [ T169] iomap_dio_complete+0x140/0xb20
[ 862.537895] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 862.539424] [ T169] iomap_dio_complete_work+0x58/0x90
[ 862.540711] [ T169] process_one_work+0x947/0x1760
[ 862.542425] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 862.543881] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 862.545586] [ T169] worker_thread+0x601/0xff0
[ 862.547505] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.548953] [ T169] kthread+0x361/0x460
[ 862.550636] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.552067] [ T169] ret_from_fork+0x560/0x860
[ 862.598716] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 862.599886] [ T169] ? __switch_to+0x473/0xd50
[ 862.601344] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.602570] [ T169] ret_from_fork_asm+0x1a/0x30
[ 862.604391] [ T169] </TASK>
[ 862.605720] [ T169] INFO: task kworker/0:0:9 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 862.608060] [ T169] INFO: task kworker/10:0:95 blocked for more than 123 seconds.
[ 862.610611] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 862.612670] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 862.615074] [ T169] task:kworker/10:0 state:D stack:0 pid:95 tgid:95 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 862.617510] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 862.618863] [ T169] Call Trace:
[ 862.619984] [ T169] <TASK>
[ 862.621425] [ T169] __schedule+0xc86/0x1b10
[ 862.622635] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 862.623900] [ T169] ? __pfx___schedule+0x10/0x10
[ 862.625384] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.626539] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 862.627851] [ T169] ? rcu_is_watching+0x69/0x90
[ 862.629309] [ T169] ? lock_acquire+0x11a/0x140
[ 862.630501] [ T169] schedule+0xe5/0x2e0
[ 862.631786] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.633410] [ T169] schedule_preempt_disabled+0x16/0x30
[ 862.634482] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 862.635829] [ T169] ? __kasan_slab_alloc+0x7f/0x90
[ 862.637088] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 862.638545] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 862.639768] [ T169] ? lock_acquire+0x11a/0x140
[ 862.641378] [ T169] down_write_nested+0x1c0/0x1f0
[ 862.642616] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 862.644347] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 862.646648] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 862.649368] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 862.651640] [ T169] ? update_load_avg+0xb65/0x2c70
[ 862.652721] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 862.653736] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 862.656196] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 862.658537] [ T169] iomap_dio_complete+0x140/0xb20
[ 862.659475] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 862.660451] [ T169] iomap_dio_complete_work+0x58/0x90
[ 862.661510] [ T169] process_one_work+0x947/0x1760
[ 862.662631] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 862.663652] [ T169] ? __try_to_del_timer_sync+0xd3/0x130
[ 862.664757] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 862.665845] [ T169] worker_thread+0x601/0xff0
[ 862.666850] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.667903] [ T169] kthread+0x361/0x460
[ 862.669351] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.670628] [ T169] ret_from_fork+0x560/0x860
[ 862.671393] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 862.672180] [ T169] ? __switch_to+0x473/0xd50
[ 862.673196] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.674012] [ T169] ret_from_fork_asm+0x1a/0x30
[ 862.675087] [ T169] </TASK>
[ 862.675904] [ T169] INFO: task kworker/10:0:95 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 862.677484] [ T169] INFO: task kworker/13:0:107 blocked for more than 123 seconds.
[ 862.678751] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 862.679934] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 862.681454] [ T169] task:kworker/13:0 state:D stack:0 pid:107 tgid:107 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 862.683148] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 862.684174] [ T169] Call Trace:
[ 862.685025] [ T169] <TASK>
[ 862.685742] [ T169] __schedule+0xc86/0x1b10
[ 862.686690] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 862.687637] [ T169] ? __pfx___schedule+0x10/0x10
[ 862.688543] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.689410] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 862.690380] [ T169] ? lock_acquire+0x11a/0x140
[ 862.691570] [ T169] schedule+0xe5/0x2e0
[ 862.692351] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.693301] [ T169] schedule_preempt_disabled+0x16/0x30
[ 862.694317] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 862.695571] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 862.696636] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 862.697620] [ T169] ? lock_acquire+0x11a/0x140
[ 862.698603] [ T169] down_write_nested+0x1c0/0x1f0
[ 862.699567] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 862.700843] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 862.702991] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 862.705330] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 862.707139] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 862.708286] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 862.709873] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 862.711607] [ T169] iomap_dio_complete+0x140/0xb20
[ 862.712622] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 862.713758] [ T169] iomap_dio_complete_work+0x58/0x90
[ 862.714854] [ T169] process_one_work+0x947/0x1760
[ 862.715809] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 862.716900] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 862.718142] [ T169] worker_thread+0x601/0xff0
[ 862.719263] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.720613] [ T169] kthread+0x361/0x460
[ 862.721568] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.722681] [ T169] ret_from_fork+0x560/0x860
[ 862.723567] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 862.724692] [ T169] ? __switch_to+0x473/0xd50
[ 862.725643] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.726494] [ T169] ret_from_fork_asm+0x1a/0x30
[ 862.727727] [ T169] </TASK>
[ 862.728590] [ T169] INFO: task kworker/13:0:107 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 862.730308] [ T169] INFO: task kworker/18:0:131 blocked for more than 123 seconds.
[ 862.731761] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 862.732954] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 862.734431] [ T169] task:kworker/18:0 state:D stack:0 pid:131 tgid:131 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 862.735987] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 862.737180] [ T169] Call Trace:
[ 862.737922] [ T169] <TASK>
[ 862.738784] [ T169] __schedule+0xc86/0x1b10
[ 862.739699] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 862.740958] [ T169] ? __pfx___schedule+0x10/0x10
[ 862.742223] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.743837] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 862.745556] [ T169] ? lock_acquire+0x11a/0x140
[ 862.747573] [ T169] schedule+0xe5/0x2e0
[ 862.749001] [ T169] xlog_grant_head_wait+0x175/0xac0 [xfs]
[ 862.751614] [ T169] xlog_grant_head_check+0x312/0x3f0 [xfs]
[ 862.754331] [ T169] ? __pfx_xlog_grant_head_check+0x10/0x10 [xfs]
[ 862.757018] [ T169] xfs_log_reserve+0x2b2/0x7a0 [xfs]
[ 862.759361] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 862.760571] [ T169] ? __pfx_xfs_log_reserve+0x10/0x10 [xfs]
[ 862.763313] [ T169] ? xfs_dec_freecounter+0x81/0x520 [xfs]
[ 862.765660] [ T169] xfs_trans_alloc+0x1a4/0x820 [xfs]
[ 862.767935] [ T169] xfs_reflink_end_atomic_cow+0x1b1/0x560 [xfs]
[ 862.770604] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 862.773762] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 862.774868] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 862.777326] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 862.779795] [ T169] iomap_dio_complete+0x140/0xb20
[ 862.780989] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 862.782460] [ T169] iomap_dio_complete_work+0x58/0x90
[ 862.783667] [ T169] process_one_work+0x947/0x1760
[ 862.784759] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 862.786260] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 862.787550] [ T169] worker_thread+0x601/0xff0
[ 862.788602] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.789757] [ T169] kthread+0x361/0x460
[ 862.790931] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.791965] [ T169] ret_from_fork+0x560/0x860
[ 862.793177] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 862.794419] [ T169] ? __switch_to+0x473/0xd50
[ 862.795543] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.796560] [ T169] ret_from_fork_asm+0x1a/0x30
[ 862.797661] [ T169] </TASK>
[ 862.798604] [ T169] INFO: task kworker/21:0:149 blocked for more than 123 seconds.
[ 862.800419] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 862.801700] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 862.803425] [ T169] task:kworker/21:0 state:D stack:0 pid:149 tgid:149 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 862.805354] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 862.806351] [ T169] Call Trace:
[ 862.807571] [ T169] <TASK>
[ 862.808374] [ T169] __schedule+0xc86/0x1b10
[ 862.809575] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 862.810650] [ T169] ? __pfx___schedule+0x10/0x10
[ 862.811595] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.812602] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 862.813639] [ T169] ? rcu_is_watching+0x69/0x90
[ 862.814471] [ T169] ? lock_acquire+0x11a/0x140
[ 862.815458] [ T169] schedule+0xe5/0x2e0
[ 862.816473] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.817491] [ T169] schedule_preempt_disabled+0x16/0x30
[ 862.818527] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 862.819664] [ T169] ? __kasan_slab_alloc+0x7f/0x90
[ 862.820690] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 862.821863] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 862.823035] [ T169] ? lock_acquire+0x11a/0x140
[ 862.882304] [ T169] down_write_nested+0x1c0/0x1f0
[ 862.882992] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 862.884022] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 862.885942] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 862.888021] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 862.890047] [ T169] ? update_load_avg+0xb65/0x2c70
[ 862.890723] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 862.891859] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 862.893613] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 862.895520] [ T169] iomap_dio_complete+0x140/0xb20
[ 862.896394] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 862.897155] [ T169] iomap_dio_complete_work+0x58/0x90
[ 862.898492] [ T169] process_one_work+0x947/0x1760
[ 862.899478] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 862.900184] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 862.901237] [ T169] worker_thread+0x601/0xff0
[ 862.901968] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.903572] [ T169] kthread+0x361/0x460
[ 862.904365] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.905281] [ T169] ret_from_fork+0x560/0x860
[ 862.906378] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 862.907247] [ T169] ? __switch_to+0x473/0xd50
[ 862.908264] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.909171] [ T169] ret_from_fork_asm+0x1a/0x30
[ 862.910168] [ T169] </TASK>
[ 862.910906] [ T169] INFO: task kworker/21:0:149 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 862.912626] [ T169] INFO: task kworker/10:1:182 blocked for more than 123 seconds.
[ 862.913741] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 862.914683] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 862.915828] [ T169] task:kworker/10:1 state:D stack:0 pid:182 tgid:182 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 862.917294] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 862.918366] [ T169] Call Trace:
[ 862.918970] [ T169] <TASK>
[ 862.919592] [ T169] __schedule+0xc86/0x1b10
[ 862.920361] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 862.921220] [ T169] ? __pfx___schedule+0x10/0x10
[ 862.922009] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.922876] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 862.923772] [ T169] ? lock_acquire+0x11a/0x140
[ 862.924586] [ T169] schedule+0xe5/0x2e0
[ 862.925449] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.926194] [ T169] schedule_preempt_disabled+0x16/0x30
[ 862.927011] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 862.927988] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 862.928985] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 862.930050] [ T169] ? lock_acquire+0x11a/0x140
[ 862.930852] [ T169] down_write_nested+0x1c0/0x1f0
[ 862.931837] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 862.932707] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 862.934501] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 862.936477] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 862.938135] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 862.939145] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 862.940733] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 862.942374] [ T169] iomap_dio_complete+0x140/0xb20
[ 862.943029] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 862.943836] [ T169] iomap_dio_complete_work+0x58/0x90
[ 862.944511] [ T169] process_one_work+0x947/0x1760
[ 862.945264] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 862.945902] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 862.946883] [ T169] worker_thread+0x601/0xff0
[ 862.947501] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.948411] [ T169] ? __kthread_parkme+0xbd/0x210
[ 862.949411] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.950258] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.950981] [ T169] kthread+0x361/0x460
[ 862.951742] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.952475] [ T169] ret_from_fork+0x560/0x860
[ 862.953085] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 862.953768] [ T169] ? __switch_to+0x473/0xd50
[ 862.954462] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.955329] [ T169] ret_from_fork_asm+0x1a/0x30
[ 862.956135] [ T169] </TASK>
[ 862.956743] [ T169] INFO: task kworker/10:1:182 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 862.958496] [ T169] INFO: task kworker/4:1:192 blocked for more than 123 seconds.
[ 862.959780] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 862.960649] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 862.961646] [ T169] task:kworker/4:1 state:D stack:0 pid:192 tgid:192 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 862.962802] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 862.963656] [ T169] Call Trace:
[ 862.964239] [ T169] <TASK>
[ 862.964876] [ T169] __schedule+0xc86/0x1b10
[ 862.965650] [ T169] ? __pfx___schedule+0x10/0x10
[ 862.966357] [ T169] ? rwsem_optimistic_spin+0x1f0/0x480
[ 862.967116] [ T169] ? wq_worker_sleeping+0x65/0x280
[ 862.967818] [ T169] ? lock_acquire+0x11a/0x140
[ 862.968455] [ T169] schedule+0xe5/0x2e0
[ 862.969236] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 862.969956] [ T169] schedule_preempt_disabled+0x16/0x30
[ 862.970745] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 862.971466] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 862.972318] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 862.973018] [ T169] ? lock_acquire+0x11a/0x140
[ 862.973929] [ T169] down_write_nested+0x1c0/0x1f0
[ 862.974668] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 862.975517] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 862.977132] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 862.978753] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 862.980434] [ T169] ? lock_acquire+0x11a/0x140
[ 862.981088] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 862.981891] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 862.983313] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 862.984866] [ T169] iomap_dio_complete+0x140/0xb20
[ 862.985470] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 862.986145] [ T169] iomap_dio_complete_work+0x58/0x90
[ 862.987165] [ T169] process_one_work+0x947/0x1760
[ 862.987782] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 862.988614] [ T169] ? __try_to_del_timer_sync+0xd3/0x130
[ 862.989478] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 862.990329] [ T169] worker_thread+0x601/0xff0
[ 862.991073] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 862.991879] [ T169] kthread+0x361/0x460
[ 862.992366] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.992943] [ T169] ret_from_fork+0x560/0x860
[ 862.993616] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 862.994429] [ T169] ? __switch_to+0x473/0xd50
[ 862.995061] [ T169] ? __pfx_kthread+0x10/0x10
[ 862.995764] [ T169] ret_from_fork_asm+0x1a/0x30
[ 862.996514] [ T169] </TASK>
[ 862.997177] [ T169] INFO: task kworker/4:1:192 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 862.998650] [ T169] INFO: task kworker/13:1:203 blocked for more than 123 seconds.
[ 862.999569] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 863.000412] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 863.001516] [ T169] task:kworker/13:1 state:D stack:0 pid:203 tgid:203 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 863.002727] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 863.003433] [ T169] Call Trace:
[ 863.003999] [ T169] <TASK>
[ 863.004720] [ T169] __schedule+0xc86/0x1b10
[ 863.005341] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 863.005926] [ T169] ? __pfx___schedule+0x10/0x10
[ 863.006767] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 863.007384] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 863.008172] [ T169] ? rcu_is_watching+0x69/0x90
[ 863.008798] [ T169] ? lock_acquire+0x11a/0x140
[ 863.009533] [ T169] schedule+0xe5/0x2e0
[ 863.010175] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 863.010753] [ T169] schedule_preempt_disabled+0x16/0x30
[ 863.011389] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 863.012000] [ T169] ? __kasan_slab_alloc+0x7f/0x90
[ 863.012699] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 863.013432] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 863.014201] [ T169] ? lock_acquire+0x11a/0x140
[ 863.014754] [ T169] down_write_nested+0x1c0/0x1f0
[ 863.015577] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 863.016221] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 863.017869] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 863.019128] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 863.020502] [ T169] ? update_load_avg+0xb65/0x2c70
[ 863.021124] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 863.021694] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 863.022983] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 863.024392] [ T169] iomap_dio_complete+0x140/0xb20
[ 863.024936] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 863.025750] [ T169] iomap_dio_complete_work+0x58/0x90
[ 863.026539] [ T169] process_one_work+0x947/0x1760
[ 863.027125] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 863.027748] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 863.028469] [ T169] worker_thread+0x601/0xff0
[ 863.029048] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 863.029602] [ T169] ? __kthread_parkme+0xbd/0x210
[ 863.030330] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 863.031083] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 863.031679] [ T169] kthread+0x361/0x460
[ 863.032432] [ T169] ? __pfx_kthread+0x10/0x10
[ 863.033138] [ T169] ret_from_fork+0x560/0x860
[ 863.033773] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 863.034384] [ T169] ? __switch_to+0x473/0xd50
[ 863.034950] [ T169] ? __pfx_kthread+0x10/0x10
[ 863.046680] [ T169] ret_from_fork_asm+0x1a/0x30
[ 863.047257] [ T169] </TASK>
[ 863.047797] [ T169] INFO: task kworker/13:1:203 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 863.048786] [ T169] INFO: task kworker/7:1:267 blocked for more than 123 seconds.
[ 863.049651] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 863.050339] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 863.051394] [ T169] task:kworker/7:1 state:D stack:0 pid:267 tgid:267 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 863.052474] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 863.053233] [ T169] Call Trace:
[ 863.053879] [ T169] <TASK>
[ 863.054380] [ T169] __schedule+0xc86/0x1b10
[ 863.055017] [ T169] ? trace_hardirqs_on+0x18/0x1a0
[ 863.055705] [ T169] ? __pfx___schedule+0x10/0x10
[ 863.056191] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 863.056776] [ T169] ? wq_worker_sleeping+0x213/0x280
[ 863.057382] [ T169] ? rcu_is_watching+0x69/0x90
[ 863.057888] [ T169] ? lock_acquire+0x11a/0x140
[ 863.058510] [ T169] schedule+0xe5/0x2e0
[ 863.059152] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 863.059634] [ T169] schedule_preempt_disabled+0x16/0x30
[ 863.060191] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 863.060660] [ T169] ? __kasan_slab_alloc+0x7f/0x90
[ 863.061305] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 863.061975] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 863.062852] [ T169] ? lock_acquire+0x11a/0x140
[ 863.063494] [ T169] down_write_nested+0x1c0/0x1f0
[ 863.063987] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 863.064651] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 863.065744] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 863.066867] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 863.068171] [ T169] ? lock_acquire+0x11a/0x140
[ 863.068608] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 863.069209] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 863.070280] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 863.071520] [ T169] iomap_dio_complete+0x140/0xb20
[ 863.072007] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 863.072614] [ T169] iomap_dio_complete_work+0x58/0x90
[ 863.073410] [ T169] process_one_work+0x947/0x1760
[ 863.073943] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 863.074647] [ T169] ? __try_to_del_timer_sync+0xd3/0x130
[ 863.075263] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 863.075717] [ T169] worker_thread+0x601/0xff0
[ 863.076457] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 863.076864] [ T169] kthread+0x361/0x460
[ 863.077206] [ T169] ? __pfx_kthread+0x10/0x10
[ 863.077635] [ T169] ret_from_fork+0x560/0x860
[ 863.077979] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 863.078467] [ T169] ? __switch_to+0x473/0xd50
[ 863.079013] [ T169] ? __pfx_kthread+0x10/0x10
[ 863.079724] [ T169] ret_from_fork_asm+0x1a/0x30
[ 863.080357] [ T169] </TASK>
[ 863.080782] [ T169] INFO: task kworker/7:1:267 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 863.081659] [ T169] INFO: task kworker/18:1:273 blocked for more than 123 seconds.
[ 863.082544] [ T169] Tainted: G W 7.3.0-rc2-kts-xfs+ #3
[ 863.083261] [ T169] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 863.084177] [ T169] task:kworker/18:1 state:D stack:0 pid:273 tgid:273 ppid:2 task_flags:0x4248060 flags:0x00080000
[ 863.085081] [ T169] Workqueue: dio/sdh iomap_dio_complete_work
[ 863.085709] [ T169] Call Trace:
[ 863.086190] [ T169] <TASK>
[ 863.086664] [ T169] __schedule+0xc86/0x1b10
[ 863.087350] [ T169] ? __pfx___schedule+0x10/0x10
[ 863.088018] [ T169] ? rwsem_optimistic_spin+0x1f0/0x480
[ 863.088839] [ T169] ? wq_worker_sleeping+0x65/0x280
[ 863.089320] [ T169] ? lock_acquire+0x11a/0x140
[ 863.089716] [ T169] schedule+0xe5/0x2e0
[ 863.090107] [ T169] ? _raw_spin_unlock_irq+0x28/0x50
[ 863.090475] [ T169] schedule_preempt_disabled+0x16/0x30
[ 863.090998] [ T169] rwsem_down_write_slowpath+0x4b4/0x1460
[ 863.091593] [ T169] ? __pfx_rwsem_down_write_slowpath+0x10/0x10
[ 863.092182] [ T169] ? percpu_counter_add_batch+0x80/0x220
[ 863.092592] [ T169] ? lock_acquire+0x11a/0x140
[ 863.092928] [ T169] down_write_nested+0x1c0/0x1f0
[ 863.093339] [ T169] ? __pfx_down_write_nested+0x10/0x10
[ 863.093878] [ T169] ? xfs_ilock+0x1e7/0x310 [xfs]
[ 863.094891] [ T169] xfs_reflink_end_atomic_cow+0x2f3/0x560 [xfs]
[ 863.095987] [ T169] ? __pfx_xfs_reflink_end_atomic_cow+0x10/0x10 [xfs]
[ 863.097206] [ T169] ? lock_acquire+0x11a/0x140
[ 863.097778] [ T169] ? update_cfs_rq_load_avg+0x4b/0x660
[ 863.098326] [ T169] xfs_dio_write_end_io+0x4b7/0x650 [xfs]
[ 863.099445] [ T169] ? __pfx_xfs_dio_write_end_io+0x10/0x10 [xfs]
[ 863.100619] [ T169] iomap_dio_complete+0x140/0xb20
[ 863.101449] [ T169] ? __pfx_aio_complete_rw+0x10/0x10
[ 863.102004] [ T169] iomap_dio_complete_work+0x58/0x90
[ 863.102595] [ T169] process_one_work+0x947/0x1760
[ 863.103268] [ T169] ? __pfx_process_one_work+0x10/0x10
[ 863.103864] [ T169] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 863.104356] [ T169] worker_thread+0x601/0xff0
[ 863.104893] [ T169] ? __pfx_worker_thread+0x10/0x10
[ 863.105480] [ T169] kthread+0x361/0x460
[ 863.105995] [ T169] ? __pfx_kthread+0x10/0x10
[ 863.106607] [ T169] ret_from_fork+0x560/0x860
[ 863.107270] [ T169] ? __pfx_ret_from_fork+0x10/0x10
[ 863.107794] [ T169] ? __switch_to+0x473/0xd50
[ 863.108317] [ T169] ? __pfx_kthread+0x10/0x10
[ 863.108847] [ T169] ret_from_fork_asm+0x1a/0x30
[ 863.109354] [ T169] </TASK>
[ 863.109815] [ T169] INFO: task kworker/18:1:273 <writer> blocked on an rw-semaphore likely owned by task kworker/14:8:2880 <writer>
[ 863.110690] [ T169] Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
[ 863.111555] [ T169] INFO: lockdep is turned off.
next prev parent reply other threads:[~2026-09-16 2:53 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-15 9:34 [bug report] fstests generic/774 hang again Shin'ichiro Kawasaki
2026-09-15 10:00 ` John Garry
2026-09-15 11:48 ` Shin'ichiro Kawasaki
2026-09-15 14:48 ` John Garry
2026-09-15 14:50 ` Darrick J. Wong
2026-09-15 15:41 ` John Garry
2026-09-16 10:23 ` John Garry
2026-09-16 22:23 ` Dave Chinner
2026-09-17 8:28 ` John Garry
2026-09-17 21:20 ` Dave Chinner
2026-09-17 6:30 ` Shin'ichiro Kawasaki
2026-09-16 2:53 ` Shin'ichiro Kawasaki [this message]
2026-09-16 21:45 ` Dave Chinner
2026-09-17 6:52 ` Shin'ichiro Kawasaki
2026-09-17 10:45 ` Shin'ichiro Kawasaki
2026-09-17 21:24 ` Dave Chinner
2026-09-19 11:53 ` Shin'ichiro Kawasaki
2026-09-21 22:05 ` Dave Chinner
2026-09-25 1:32 ` Shin'ichiro Kawasaki
2026-09-27 21:30 ` Dave Chinner
2026-09-28 2:45 ` Darrick J. Wong
2026-09-22 0:28 ` Darrick J. Wong
2026-09-25 1:38 ` Shin'ichiro Kawasaki
2026-09-25 23:03 ` Darrick J. Wong
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