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Re: [PATCH] signals: work around random wakeups in sigsuspend()

From Peter Zijlstra <peterz@infradead.org>
Newsgroups linux.kernel
Subject Re: [PATCH] signals: work around random wakeups in sigsuspend()
Date 2016-01-27 19:00 +0100
Message-ID <qVCxQ-7c1-9@gated-at.bofh.it> (permalink)
References <qURIG-68y-83@gated-at.bofh.it> <qUX1F-1E8-13@gated-at.bofh.it> <qVjbR-1GJ-29@gated-at.bofh.it> <qVtXz-Pn-11@gated-at.bofh.it> <qVBs7-6oZ-43@gated-at.bofh.it>
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On Wed, Jan 27, 2016 at 05:41:54PM +0100, Oleg Nesterov wrote:
> Why? It should work either way. Yes, signal_wakeup() can come right before
> __set_current_state(TASK_INTERRUPTIBLE) but this is fine, __schedule() must not
> sleep if signal_pending() == T,


Urgh yes, I always forget this :/

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Thread

[PATCH] signals: work around random wakeups in sigsuspend() Sasha Levin <sasha.levin@oracle.com> - 2016-01-25 17:00 +0100
  Re: [PATCH] signals: work around random wakeups in sigsuspend() Oleg Nesterov <oleg@redhat.com> - 2016-01-25 20:10 +0100
    Re: [PATCH] signals: work around random wakeups in sigsuspend() Peter Zijlstra <peterz@infradead.org> - 2016-01-25 20:40 +0100
  Re: [PATCH] signals: work around random wakeups in sigsuspend() Andrew Morton <akpm@linux-foundation.org> - 2016-01-25 22:40 +0100
    Re: [PATCH] signals: work around random wakeups in sigsuspend() Oleg Nesterov <oleg@redhat.com> - 2016-01-26 22:20 +0100
      Re: [PATCH] signals: work around random wakeups in sigsuspend() Peter Zijlstra <peterz@infradead.org> - 2016-01-27 09:50 +0100
        Re: [PATCH] signals: work around random wakeups in sigsuspend() Oleg Nesterov <oleg@redhat.com> - 2016-01-27 17:50 +0100
          Re: [PATCH] signals: work around random wakeups in sigsuspend() Peter Zijlstra <peterz@infradead.org> - 2016-01-27 19:00 +0100
          Re: [PATCH] signals: work around random wakeups in sigsuspend() Andrew Morton <akpm@linux-foundation.org> - 2016-01-27 19:40 +0100
            Re: [PATCH] signals: work around random wakeups in sigsuspend() Oleg Nesterov <oleg@redhat.com> - 2016-01-27 22:10 +0100
        Re: [PATCH] signals: work around random wakeups in sigsuspend() Sasha Levin <sasha.levin@oracle.com> - 2016-01-27 18:30 +0100
  Re: [PATCH] signals: work around random wakeups in sigsuspend() Ingo Molnar <mingo@kernel.org> - 2016-01-26 07:50 +0100
    Re: [PATCH] signals: work around random wakeups in sigsuspend() Oleg Nesterov <oleg@redhat.com> - 2016-01-26 16:10 +0100

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