Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c

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From	Michal Hocko <mhocko@kernel.org>
Newsgroups	linux.kernel
Subject	Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c
Date	Wed, 09 Dec 2015 14:30:02 +0100
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X-Original-To	Norbert Preining <preining@logic.at>
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[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
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-- 
Michal Hocko
SUSE Labs
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Thread

occasional kernel hang on shutdown - kernel/cgroup_pids.c Norbert Preining <preining@logic.at> - 2015-12-08 01:10 +0100
  Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c Norbert Preining <preining@logic.at> - 2015-12-08 01:30 +0100
    Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c jeff merkey <marijuanalinux@gmail.com> - 2015-12-08 01:30 +0100
  Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c jeff merkey <marijuanalinux@gmail.com> - 2015-12-08 01:30 +0100
  Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c Michal Hocko <mhocko@kernel.org> - 2015-12-09 14:30 +0100
    Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c Tejun Heo <tj@kernel.org> - 2015-12-09 17:10 +0100
      Re: occasional kernel hang on shutdown - kernel/cgroup_pids.c Norbert Preining <preining@logic.at> - 2015-12-11 09:50 +0100

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