On Wed, Nov 08, 2017 at 11:58:13AM +0530, Lingutla Chandrasekhar wrote:
> khungtask by default monitors all tasks for long unterruptible sleep.
> This change introduces a sysctl option, /proc/sys/kernel/
> hung_task_selective_monitoring, to enable monitoring selected tasks.
> If this sysctl option
On Wed, 8 Nov 2017 20:57:42 +0900 Tetsuo Handa
wrote:
> Lingutla Chandrasekhar wrote:
> > Some tasks may intentionally moves to uninterruptable sleep state,
> > which shouldn't leads to khungtask panics, as those are recoverable
> > hungs. So to avoid false hung reports, add an option to select
Lingutla Chandrasekhar wrote:
> Some tasks may intentionally moves to uninterruptable sleep state,
> which shouldn't leads to khungtask panics, as those are recoverable
> hungs. So to avoid false hung reports, add an option to select tasks
> to be monitored and report/panic them only.
What are bac
khungtask by default monitors all tasks for long unterruptible sleep.
This change introduces a sysctl option, /proc/sys/kernel/
hung_task_selective_monitoring, to enable monitoring selected tasks.
If this sysctl option is enabled then only the tasks with
/proc/$PID/hang_detection_enabled set are to
On 8/23/2017 2:06 AM, Peter Zijlstra wrote:
> On Mon, Aug 21, 2017 at 03:55:53PM +0530, Imran Khan wrote:
>> khungtask by default monitors either all tasks or no tasks at all
>> for long unterruptible sleeps.
>> For Android like environments this arrangement is not optimal because
>> on one hand it
On Mon, Aug 21, 2017 at 03:55:53PM +0530, Imran Khan wrote:
> khungtask by default monitors either all tasks or no tasks at all
> for long unterruptible sleeps.
> For Android like environments this arrangement is not optimal because
> on one hand it may be permissible to have some background(bg) ta
an ; Luis R.
> Rodriguez ; Kees Cook ; Peter
> Zijlstra (Intel) ; Zhang, Shile (NSB - CN/Hangzhou)
> ; Matt Fleming ;
> Andrew Morton ; Vegard Nossum
> ; Tetsuo Handa
> ; John Siddle ; open
> list ; open list:PROC SYSCTL
>
> Subject: [PATCH] RFC: hung task: Check speci
lstra (Intel) ; Zhang, Shile (NSB - CN/Hangzhou)
> ; Matt Fleming ;
> Andrew Morton ; Vegard Nossum
> ; Tetsuo Handa
> ; John Siddle ; open
> list ; open list:PROC SYSCTL
>
> Subject: [PATCH] RFC: hung task: Check specific tasks for long
> uninterruptible sleep state
Intel) ; Zhang, Shile (NSB - CN/Hangzhou)
; Matt Fleming ; Andrew
Morton ; Vegard Nossum ;
Tetsuo Handa ; John Siddle
; open list ; open list:PROC
SYSCTL
Subject: [PATCH] RFC: hung task: Check specific tasks for long uninterruptible
sleep state
khungtask by default monitors either all tasks o
khungtask by default monitors either all tasks or no tasks at all
for long unterruptible sleeps.
For Android like environments this arrangement is not optimal because
on one hand it may be permissible to have some background(bg) task
in uninterruptible sleep state for long duration while on the oth
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