Hi,
xfstests generic/013 on CIFS hangs on Linus tree now.
Bisect points to
commit 7091bcaba9f34c83e1e6f418b6de5c6d987571da (HEAD, refs/bisect/bad)
Author: Pavel Shilovsky <pshilov@xxxxxxxxxxxxx>
Date: Wed Jan 30 16:58:09 2019 -0800
CIFS: Try to acquire credits at once for compound requests
as the first bad commit.
It should be easy to reproduce.
Thanks,
M
dmesg:
run fstests generic/013 at 2019-03-14 09:51:56
INFO: task kworker/3:1:104 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/3:1 D 0 104 2 0x80000000
Workqueue: cifsiod cifs_uncached_writev_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
cifs_uncached_writev_complete+0xcd/0x570 [cifs]
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/5:1:106 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/5:1 D 0 106 2 0x80000000
Workqueue: cifsiod cifs_uncached_writev_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
? ttwu_do_wakeup+0x19/0x140
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
cifs_uncached_writev_complete+0xcd/0x570 [cifs]
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/7:1:108 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/7:1 D 0 108 2 0x80000000
Workqueue: cifsiod cifs_uncached_writev_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
? ttwu_do_wakeup+0x19/0x140
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
cifs_uncached_writev_complete+0xcd/0x570 [cifs]
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/7:3:391 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/7:3 D 0 391 2 0x80000000
Workqueue: cifsiod cifs_uncached_writev_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
? ttwu_do_wakeup+0x19/0x140
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
cifs_uncached_writev_complete+0xcd/0x570 [cifs]
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/1:3:807 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:3 D 0 807 2 0x80000000
Workqueue: cifsiod cifs_uncached_writev_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
cifs_uncached_writev_complete+0xcd/0x570 [cifs]
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/13:2:1077 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/13:2 D 0 1077 2 0x80000080
Workqueue: cifsiod cifs_uncached_readv_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
? __switch_to_asm+0x40/0x70
cifs_uncached_readv_complete+0x78/0x4d0 [cifs]
? __switch_to_asm+0x34/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/3:0:1910 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/3:0 D 0 1910 2 0x80000080
Workqueue: cifsiod cifs_uncached_writev_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
cifs_uncached_writev_complete+0xcd/0x570 [cifs]
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/5:5:3930 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/5:5 D 0 3930 2 0x80000080
Workqueue: cifsiod cifs_uncached_writev_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
cifs_uncached_writev_complete+0xcd/0x570 [cifs]
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x40/0x70
? __switch_to_asm+0x34/0x70
? __switch_to_asm+0x40/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/1:2:3932 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:2 D 0 3932 2 0x80000080
Workqueue: cifsiod cifs_uncached_readv_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
? __switch_to_asm+0x40/0x70
cifs_uncached_readv_complete+0x78/0x4d0 [cifs]
? __switch_to_asm+0x34/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
INFO: task kworker/1:5:3934 blocked for more than 120 seconds.
Not tainted 5.0.0-bisect-7091bcaba9f3+ #15
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/1:5 D 0 3934 2 0x80000080
Workqueue: cifsiod cifs_uncached_readv_complete [cifs]
Call Trace:
? __schedule+0x24e/0x860
schedule+0x28/0x70
schedule_preempt_disabled+0xa/0x10
__mutex_lock.isra.8+0x2d0/0x4b0
? __switch_to_asm+0x40/0x70
cifs_uncached_readv_complete+0x78/0x4d0 [cifs]
? __switch_to_asm+0x34/0x70
process_one_work+0x1a1/0x3a0
worker_thread+0x30/0x380
? mod_delayed_work_on+0x90/0x90
kthread+0x112/0x130
? __kthread_parkme+0x70/0x70
ret_from_fork+0x35/0x40
