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From: Remy Bohmer <linux@bohmer.net>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Steven Rostedt <rostedt@goodmis.org>, Ingo Molnar <mingo@elte.hu>,
	LKML <linux-kernel@vger.kernel.org>,
	linux-rt-users <linux-rt-users@vger.kernel.org>
Subject: Re: System deadlock on 2.6.24-rt20 (-rt27 panics on locking-api-selftests)
Date: Sun, 5 Apr 2009 20:39:11 +0200	[thread overview]
Message-ID: <3efb10970904051139ue3802b1ib33487418188e4bc@mail.gmail.com> (raw)
In-Reply-To: <alpine.LFD.2.00.0904051257470.747@localhost.localdomain>

Hello Thomas,

>> I integrated -rt27, but this one fails on the locking api-selftests.
>> Is this a bug in the selftest? Or is there a real locking bug behind
>> it?
>
> Don't think so. The rw locks fixups which we did between -rt20 and
> -rt27 might have screwed the lockdep selftests where we create
> deadlock situations.

This is what I hoped for ;-)  (A bug in the testtooling...)

> What happens if you disable the self tests ?

The system boots and seems to run properly. We did not yet test for a
longer period of time, but the first looks are that the hangups we had
are gone now. But it would be good for the peace of mind if the
locking-selftest was working properly.

Thanks.

Kind Regards,

Remy

  reply	other threads:[~2009-04-05 18:39 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-03 12:02 System deadlock on 2.6.24-rt20 (-rt27 panics on locking-api-selftests) Remy Bohmer
2009-04-05 11:00 ` Thomas Gleixner
2009-04-05 18:39   ` Remy Bohmer [this message]
2009-04-05 18:49     ` Thomas Gleixner
2009-04-05 19:00       ` Remy Bohmer
2009-04-05 19:09         ` Thomas Gleixner

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