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Date: Fri, 29 Mar 2013 11:00:27 -0700
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Subject: Re: ipc,sem: sysv semaphore scalability
From: Linus Torvalds <torvalds@linux-foundation.org>
To: Dave Jones <davej@redhat.com>, Andrew Morton <akpm@linux-foundation.org>,
        Rik van Riel <riel@surriel.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Davidlohr Bueso <davidlohr.bueso@hp.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        hhuang@redhat.com, "Low, Jason" <jason.low2@hp.com>,
        Michel Lespinasse <walken@google.com>,
        Larry Woodman <lwoodman@redhat.com>,
        "Vinod, Chegu" <chegu_vinod@hp.com>,
        Peter Hurley <peter@hurleysoftware.com>
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On Fri, Mar 29, 2013 at 9:17 AM, Dave Jones <davej@redhat.com> wrote:
>
> Now that I have that reverted, I'm not seeing msgrcv traces any more, but
> I've started seeing this..
>
> general protection fault: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC
>
> Looks like seg was already kfree'd.

Just to clarify: is this you testing -mm that has Davidlohr's and
Rik's scalability patches? Or mainline?

         Linus