From: Thomas Gleixner <tglx@linutronix.de>
To: Ulrich Drepper <drepper@redhat.com>
Cc: Pierre Peiffer <pierre.peiffer@bull.net>,
Linux Kernel <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Dave Jones <davej@redhat.com>
Subject: Re: FUTEX_CMP_REQUEUE_PI is not quite there
Date: Tue, 05 Jun 2007 18:58:27 +0200 [thread overview]
Message-ID: <1181062707.4404.119.camel@chaos> (raw)
In-Reply-To: <46455A67.8040203@redhat.com>
On Fri, 2007-05-11 at 23:10 -0700, Ulrich Drepper wrote:
> I hooked up FUTEX_CMP_REQUEUE_PI here and got a kernel crash. No serial
> console so this is the output of the screen after the machine stopped.
>
> This is of course on x86-64. Compiled from a rawhide-ified upstream
> kernel from two days ago.
>
> The situation is the we requeue from a non-PI futex to a PI futex. We
> might now actually want to change the condvar implementation to use
> internally a PI futex if the mutex in use is PI, too, but this kind of
> mismatch can still happen. I can provide binaries if necessary.
Can you put the binaries somewhere for download please ?
I'm looking at the problems, which were reported by Alexey, so I can
look at this as well.
tglx
next prev parent reply other threads:[~2007-06-05 16:58 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-05-12 6:10 FUTEX_CMP_REQUEUE_PI is not quite there Ulrich Drepper
2007-05-12 6:19 ` Andrew Morton
2007-05-12 6:29 ` Ulrich Drepper
2007-06-05 16:58 ` Thomas Gleixner [this message]
2007-06-09 18:01 ` Ulrich Drepper
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