From: Peter Zijlstra <peterz@infradead.org>
To: Mohammed Naser <mnaser@vexxhost.com>
Cc: linux-kernel@vger.kernel.org, mingo@redhat.com
Subject: Re: [PATCH] sched/fair: Fix null pointer dereference of empty queues
Date: Mon, 25 May 2015 22:38:54 +0200 [thread overview]
Message-ID: <1432586334.11346.2.camel@twins> (raw)
In-Reply-To: <1432576851-24831-1-git-send-email-mnaser@vexxhost.com>
On Mon, 2015-05-25 at 14:00 -0400, Mohammed Naser wrote:
> Calling put_prev_task() can result in nr_running being updated
> to zero, which would then crash the system when the kernel
> attempts to pick_next_entity() with an empty queue.
Getting to pick_next_entity() with an empty queue is a bug.
next prev parent reply other threads:[~2015-05-25 20:39 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-25 18:00 [PATCH] sched/fair: Fix null pointer dereference of empty queues Mohammed Naser
2015-05-25 20:38 ` Peter Zijlstra [this message]
[not found] ` <CAEs876hF0rcSdqoKf-JASnKP0SFs70EREzpxFs9M9qC51Ea6zA@mail.gmail.com>
2015-05-25 20:49 ` Mohammed Naser
2015-05-25 21:51 ` Kirill Tkhai
2015-05-26 17:38 ` bsegall
2015-05-26 17:56 ` Mohammed Naser
2015-05-26 18:05 ` Mohammed Naser
2015-05-27 12:33 ` Kirill Tkhai
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