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| author | Yongliang Gao <[email protected]> | 2024-06-13 03:31:59 +0000 |
|---|---|---|
| committer | Andrew Morton <[email protected]> | 2024-06-25 05:25:10 +0000 |
| commit | abd8ac05570cf1488a311f95c4c539fbe119d5da (patch) | |
| tree | 980f5b924159d04cb08d415eab75c1ec2f8073ab /lib/dump_stack.c | |
| parent | checkpatch: check for missing Fixes tags (diff) | |
| download | kernel-abd8ac05570cf1488a311f95c4c539fbe119d5da.tar.gz kernel-abd8ac05570cf1488a311f95c4c539fbe119d5da.zip | |
hung_task: ignore hung_task_warnings when hung_task_panic is enabled
If hung_task_panic is enabled, don't consider the value of
hung_task_warnings and display the information of the hung tasks.
In some cases, hung_task_panic might not be initially set up, after
several hung tasks occur, the hung_task_warnings count reaches zero. If
hung_task_panic is set up later, it may not display any helpful hung task
info in dmesg, only showing messages like:
Kernel panic - not syncing: hung_task: blocked tasks
CPU: 3 PID: 58 Comm: khungtaskd Not tainted 6.10.0-rc3 #19
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
Call Trace:
<TASK>
panic+0x2f3/0x320
watchdog+0x2dd/0x510
? __pfx_watchdog+0x10/0x10
kthread+0xe0/0x110
? __pfx_kthread+0x10/0x10
ret_from_fork+0x2f/0x40
? __pfx_kthread+0x10/0x10
ret_from_fork_asm+0x1a/0x30
</TASK>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yongliang Gao <[email protected]>
Reviewed-by: Huang Cun <[email protected]>
Cc: Joel Granados <[email protected]>
Cc: John Siddle <[email protected]>
Cc: Kent Overstreet <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Diffstat (limited to 'lib/dump_stack.c')
0 files changed, 0 insertions, 0 deletions