From: Andrew Morton <akpm@linux-foundation.org>
To: Sasha Levin <sasha.levin@oracle.com>
Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, oleg@redhat.com,
peterz@infradead.org
Subject: Re: [PATCH] signals: work around random wakeups in sigsuspend()
Date: Mon, 25 Jan 2016 13:32:05 -0800 [thread overview]
Message-ID: <20160125133205.36542c86ada93761d8a9ff06@linux-foundation.org> (raw)
In-Reply-To: <1453735306-13519-1-git-send-email-sasha.levin@oracle.com>
On Mon, 25 Jan 2016 10:21:46 -0500 Sasha Levin <sasha.levin@oracle.com> wrote:
> A random wakeup can get us out of sigsuspend() without TIF_SIGPENDING
> being set.
>
> Avoid that by making sure we were signaled, like sys_pause() does.
What we're lacking here is any description of the end-user-visible
effects of the bug. Enough for people to be able to decide (and to
recognize!) whether their kernel needs this patch.</stdrefrain>
next prev parent reply other threads:[~2016-01-25 21:32 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-25 15:21 Sasha Levin
2016-01-25 19:09 ` Oleg Nesterov
2016-01-25 19:37 ` Peter Zijlstra
2016-02-25 3:18 ` Al Viro
2016-02-25 8:11 ` Peter Zijlstra
2016-02-25 17:34 ` Al Viro
2016-01-25 21:32 ` Andrew Morton [this message]
2016-01-26 21:10 ` Oleg Nesterov
2016-01-27 8:44 ` Peter Zijlstra
2016-01-27 16:41 ` Oleg Nesterov
2016-01-27 17:54 ` Peter Zijlstra
2016-01-27 18:39 ` Andrew Morton
2016-01-27 21:07 ` Oleg Nesterov
2016-01-27 17:24 ` Sasha Levin
2016-01-26 6:44 ` Ingo Molnar
2016-01-26 15:05 ` Oleg Nesterov
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