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Groups > linux.kernel > #1328301

Re: [PATCH 1/5] mm, oom: introduce oom reaper

From Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Newsgroups linux.kernel
Subject Re: [PATCH 1/5] mm, oom: introduce oom reaper
Date 2016-02-06 14:30 +0100
Message-ID <qZb62-7Rf-3@gated-at.bofh.it> (permalink)
References <qY5vH-2qT-5@gated-at.bofh.it> <qY5vJ-2qT-29@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Michal Hocko wrote:
> There is one notable exception to this, though, if the OOM victim was
> in the process of coredumping the result would be incomplete. This is
> considered a reasonable constrain because the overall system health is
> more important than debugability of a particular application.

Is it possible to clarify what "the result would be incomplete" mean?

  (1) The size of coredump file becomes smaller than it should be, and
      data in reaped pages is not included into the file.

  (2) The size of coredump file does not change, and data in reaped pages
      is included into the file as NUL byte.

  (3) The size of coredump file does not change, and data in reaped pages
      is included into the file as-is (i.e. information leak security risk).

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Thread

[PATCH 0/5] oom reaper v5 Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
  [PATCH 2/5] oom reaper: handle mlocked pages Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 2/5] oom reaper: handle mlocked pages David Rientjes <rientjes@google.com> - 2016-02-04 01:00 +0100
  [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 4/5] mm, oom_reaper: report success/failure David Rientjes <rientjes@google.com> - 2016-02-04 00:20 +0100
      Re: [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-04 07:50 +0100
        Re: [PATCH 4/5] mm, oom_reaper: report success/failure David Rientjes <rientjes@google.com> - 2016-02-04 23:40 +0100
          Re: [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-05 10:30 +0100
            Re: [PATCH 4/5] mm, oom_reaper: report success/failure Michal Hocko <mhocko@kernel.org> - 2016-02-06 07:40 +0100
  [PATCH 1/5] mm, oom: introduce oom reaper Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 1/5] mm, oom: introduce oom reaper David Rientjes <rientjes@google.com> - 2016-02-04 00:50 +0100
      Re: [PATCH 1/5] mm, oom: introduce oom reaper Michal Hocko <mhocko@kernel.org> - 2016-02-04 07:50 +0100
    Re: [PATCH 1/5] mm, oom: introduce oom reaper Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 14:30 +0100
  [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-04 11:50 +0100
      Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Michal Hocko <mhocko@kernel.org> - 2016-02-04 16:00 +0100
        Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 07:00 +0100
          Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Michal Hocko <mhocko@kernel.org> - 2016-02-06 09:40 +0100
            Re: [PATCH 5/5] mm, oom_reaper: implement OOM victims queuing Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 16:40 +0100
  [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-03 14:20 +0100
    Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-04 15:40 +0100
      Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-04 15:50 +0100
        Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-04 16:10 +0100
          Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-04 17:40 +0100
            Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-05 12:20 +0100
              Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-06 09:40 +0100
                Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 12:30 +0100
        Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to  unmap the address space Michal Hocko <mhocko@kernel.org> - 2016-02-06 07:50 +0100
          Re: [PATCH 3/5] oom: clear TIF_MEMDIE after oom_reaper managed to unmap the address space Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> - 2016-02-06 15:40 +0100

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