Messages in this thread | | | Date | Tue, 27 Sep 2022 10:04:37 +0800 | Subject | Re: [PATCH] kernel/hung_task: add option to ignore task | From | Kassey Li <> |
| |
On 9/23/2022 7:04 PM, Peter Zijlstra wrote: > On Fri, Sep 23, 2022 at 04:53:35PM +0800, Kassey Li wrote: >> By default, hung_task will iterate the tasklist and check >> state in TASK_UNINTERRUPTIBLE with a given timeout value. >> >> Some tasks may in this state as expected but reported by hung_task. > > Please explain.. I want to set timout value as 60s, 20s, 10s, or even 5s to more aggressive to detect my VIP tasks "init", "surfaceflinger", "system_server" for example as debug.
many other tasks wait for IO, mutex, delayed timer ... will hit this while we want to ignore.
| |