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* occasional kernel hang on shutdown - kernel/cgroup_pids.c
@ 2015-12-07 23:53 Norbert Preining
  2015-12-08  0:25 ` jeff merkey
  2015-12-09 13:22 ` Michal Hocko
  0 siblings, 2 replies; 8+ messages in thread
From: Norbert Preining @ 2015-12-07 23:53 UTC (permalink / raw)
  To: linux-kernel

Dear all

(please Cc)

running 4.4-rc4 (written as rc3+ but only the tag commit is missing),
but I think also earlier in the rc releases, I occasionally see hangs
on shutdown. Nothing works anymore, but this time at least there
was some output on the console.

Manually copied from screen:

WARNING: CPU: 1 PID: 14 at kernel/cgroup_pids.c:97 pids_cancel.constrprop.8+0x2a
Modules linked in: ....
...
CPU: 1 PID: 14 Comm: ksoftirqd/1 Tainted: G O 4.4.0-rc3+
Hardware name: Sony Corporation SVP1322A1J/VAIO, BIOS R2092V7 04/24/2015
...

Does that help in any way?

All the best

Norbert

(please Cc)

------------------------------------------------------------------------
PREINING, Norbert                               http://www.preining.info
JAIST, Japan                                 TeX Live & Debian Developer
GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0  ACF0 6CAC A448 860C DC13
------------------------------------------------------------------------

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
  2015-12-07 23:53 occasional kernel hang on shutdown - kernel/cgroup_pids.c Norbert Preining
@ 2015-12-08  0:25 ` jeff merkey
  2015-12-08  0:26   ` Norbert Preining
  2015-12-09 13:22 ` Michal Hocko
  1 sibling, 1 reply; 8+ messages in thread
From: jeff merkey @ 2015-12-08  0:25 UTC (permalink / raw)
  To: Norbert Preining; +Cc: linux-kernel

I am seeing this too but I think its related to Centos 7 not the build.

On 12/7/15, Norbert Preining <preining@logic.at> wrote:
> Dear all
>
> (please Cc)
>
> running 4.4-rc4 (written as rc3+ but only the tag commit is missing),
> but I think also earlier in the rc releases, I occasionally see hangs
> on shutdown. Nothing works anymore, but this time at least there
> was some output on the console.
>
> Manually copied from screen:
>
> WARNING: CPU: 1 PID: 14 at kernel/cgroup_pids.c:97
> pids_cancel.constrprop.8+0x2a
> Modules linked in: ....
> ...
> CPU: 1 PID: 14 Comm: ksoftirqd/1 Tainted: G O 4.4.0-rc3+
> Hardware name: Sony Corporation SVP1322A1J/VAIO, BIOS R2092V7 04/24/2015
> ...
>
> Does that help in any way?
>
> All the best
>
> Norbert
>
> (please Cc)
>
> ------------------------------------------------------------------------
> PREINING, Norbert                               http://www.preining.info
> JAIST, Japan                                 TeX Live & Debian Developer
> GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0  ACF0 6CAC A448 860C DC13
> ------------------------------------------------------------------------
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/
>

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
  2015-12-08  0:25 ` jeff merkey
@ 2015-12-08  0:26   ` Norbert Preining
  2015-12-08  0:28     ` jeff merkey
  0 siblings, 1 reply; 8+ messages in thread
From: Norbert Preining @ 2015-12-08  0:26 UTC (permalink / raw)
  To: jeff merkey; +Cc: linux-kernel

Hi Jeff,

> I am seeing this too but I think its related to Centos 7 not the build.

Here I am running:
	Debian sid
	gcc (Debian 5.3.1-2) 5.3.1 20151206

> > WARNING: CPU: 1 PID: 14 at kernel/cgroup_pids.c:97
> > pids_cancel.constrprop.8+0x2a
> > Modules linked in: ....
> > ...
> > CPU: 1 PID: 14 Comm: ksoftirqd/1 Tainted: G O 4.4.0-rc3+
> > Hardware name: Sony Corporation SVP1322A1J/VAIO, BIOS R2092V7 04/24/2015
> > ...

Norbert

------------------------------------------------------------------------
PREINING, Norbert                               http://www.preining.info
JAIST, Japan                                 TeX Live & Debian Developer
GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0  ACF0 6CAC A448 860C DC13
------------------------------------------------------------------------

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
  2015-12-08  0:26   ` Norbert Preining
@ 2015-12-08  0:28     ` jeff merkey
  0 siblings, 0 replies; 8+ messages in thread
From: jeff merkey @ 2015-12-08  0:28 UTC (permalink / raw)
  To: Norbert Preining; +Cc: linux-kernel

Wow,

OK.  I'll try to debug it at this end if I can ...

Jeff

On 12/7/15, Norbert Preining <preining@logic.at> wrote:
> Hi Jeff,
>
>> I am seeing this too but I think its related to Centos 7 not the build.
>
> Here I am running:
> 	Debian sid
> 	gcc (Debian 5.3.1-2) 5.3.1 20151206
>
>> > WARNING: CPU: 1 PID: 14 at kernel/cgroup_pids.c:97
>> > pids_cancel.constrprop.8+0x2a
>> > Modules linked in: ....
>> > ...
>> > CPU: 1 PID: 14 Comm: ksoftirqd/1 Tainted: G O 4.4.0-rc3+
>> > Hardware name: Sony Corporation SVP1322A1J/VAIO, BIOS R2092V7
>> > 04/24/2015
>> > ...
>
> Norbert
>
> ------------------------------------------------------------------------
> PREINING, Norbert                               http://www.preining.info
> JAIST, Japan                                 TeX Live & Debian Developer
> GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0  ACF0 6CAC A448 860C DC13
> ------------------------------------------------------------------------
>

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
  2015-12-07 23:53 occasional kernel hang on shutdown - kernel/cgroup_pids.c Norbert Preining
  2015-12-08  0:25 ` jeff merkey
@ 2015-12-09 13:22 ` Michal Hocko
  2015-12-09 16:09     ` Tejun Heo
  1 sibling, 1 reply; 8+ messages in thread
From: Michal Hocko @ 2015-12-09 13:22 UTC (permalink / raw)
  To: Norbert Preining; +Cc: linux-kernel, Tejun Heo, cgroups mailinglist

[CCing Tejun]

Seems to be the same issue as reported here?
http://lkml.kernel.org/r/20151208145851.GJ9837@bark

On Tue 08-12-15 08:53:52, Norbert Preining wrote:
> Dear all
> 
> (please Cc)
> 
> running 4.4-rc4 (written as rc3+ but only the tag commit is missing),
> but I think also earlier in the rc releases, I occasionally see hangs
> on shutdown. Nothing works anymore, but this time at least there
> was some output on the console.
> 
> Manually copied from screen:
> 
> WARNING: CPU: 1 PID: 14 at kernel/cgroup_pids.c:97 pids_cancel.constrprop.8+0x2a
> Modules linked in: ....
> ...
> CPU: 1 PID: 14 Comm: ksoftirqd/1 Tainted: G O 4.4.0-rc3+
> Hardware name: Sony Corporation SVP1322A1J/VAIO, BIOS R2092V7 04/24/2015
> ...
> 
> Does that help in any way?
> 
> All the best
> 
> Norbert
> 
> (please Cc)
> 
> ------------------------------------------------------------------------
> PREINING, Norbert                               http://www.preining.info
> JAIST, Japan                                 TeX Live & Debian Developer
> GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0  ACF0 6CAC A448 860C DC13
> ------------------------------------------------------------------------
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at  http://www.tux.org/lkml/

-- 
Michal Hocko
SUSE Labs

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
@ 2015-12-09 16:09     ` Tejun Heo
  0 siblings, 0 replies; 8+ messages in thread
From: Tejun Heo @ 2015-12-09 16:09 UTC (permalink / raw)
  To: Michal Hocko; +Cc: Norbert Preining, linux-kernel, cgroups mailinglist

On Wed, Dec 09, 2015 at 02:22:53PM +0100, Michal Hocko wrote:
> [CCing Tejun]
> 
> Seems to be the same issue as reported here?
> http://lkml.kernel.org/r/20151208145851.GJ9837@bark

Patches just got merged into mainline.  Please let me know if the
current git master doesn't fix the issue.

Thanks.

-- 
tejun

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
@ 2015-12-09 16:09     ` Tejun Heo
  0 siblings, 0 replies; 8+ messages in thread
From: Tejun Heo @ 2015-12-09 16:09 UTC (permalink / raw)
  To: Michal Hocko
  Cc: Norbert Preining, linux-kernel-u79uwXL29TY76Z2rM5mHXA,
	cgroups mailinglist

On Wed, Dec 09, 2015 at 02:22:53PM +0100, Michal Hocko wrote:
> [CCing Tejun]
> 
> Seems to be the same issue as reported here?
> http://lkml.kernel.org/r/20151208145851.GJ9837@bark

Patches just got merged into mainline.  Please let me know if the
current git master doesn't fix the issue.

Thanks.

-- 
tejun

^ permalink raw reply	[flat|nested] 8+ messages in thread
* Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
  2015-12-09 16:09     ` Tejun Heo
  (?)
@ 2015-12-11  8:43     ` Norbert Preining
  -1 siblings, 0 replies; 8+ messages in thread
From: Norbert Preining @ 2015-12-11  8:43 UTC (permalink / raw)
  To: Tejun Heo; +Cc: Michal Hocko, linux-kernel, cgroups mailinglist

Hi Tejun,

> Patches just got merged into mainline.  Please let me know if the
> current git master doesn't fix the issue.

Seems to have worked - I don't see the kernel hangs anymore. What remains
are problems with DRI/DRM, but I will report separately.

Thanks a lot

Norbert

------------------------------------------------------------------------
PREINING, Norbert                               http://www.preining.info
JAIST, Japan                                 TeX Live & Debian Developer
GPG: 0x860CDC13   fp: F7D8 A928 26E3 16A1 9FA0  ACF0 6CAC A448 860C DC13
------------------------------------------------------------------------

^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2015-12-11  8:43 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-12-07 23:53 occasional kernel hang on shutdown - kernel/cgroup_pids.c Norbert Preining
2015-12-08  0:25 ` jeff merkey
2015-12-08  0:26   ` Norbert Preining
2015-12-08  0:28     ` jeff merkey
2015-12-09 13:22 ` Michal Hocko
2015-12-09 16:09   ` Tejun Heo
2015-12-09 16:09     ` Tejun Heo
2015-12-11  8:43     ` Norbert Preining

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