From: Don Zickus <dzickus@redhat.com>
To: "Sebastian Färber" <faerber@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Hard LOCKUP, maybe acpi related (present in 2.6.32 to 2.6.37, fixed in 2.6.38)
Date: Tue, 3 May 2011 09:01:23 -0400 [thread overview]
Message-ID: <20110503130123.GA23498@redhat.com> (raw)
In-Reply-To: <BANLkTikAun3_-WyKE0RJiXei=QGXQ1g+JQ@mail.gmail.com>
On Fri, Apr 29, 2011 at 12:50:35PM +0200, Sebastian Färber wrote:
> Hi,
>
> I'm trying to track down a problem i have with newer hardware which seems
> fixed in 2.6.38.4 but which i can reproduce from 2.6.32 to 2.6.37
> I'm running a DEBUG Kernel with nmi_watchdog=1 and attached a backtrace
> of the lockup that happened on 2.6.37.6. I can also provide backtraces for
> 2.6.32 to 2.6.35 if necessary, they look very similar.
It looks like you are using the old nmi watchdog which may have given you
false positives. Can you turn on the new nmi watchdog (for 2.6.36 or
later)?
CONFIG_LOCKUP_DETECTOR=y
CONFIG_HARDLOCKUP_DETECTOR=y
and see if that gives a more meaningful backtrace?
Cheers,
Don
next prev parent reply other threads:[~2011-05-03 18:02 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-29 10:50 Hard LOCKUP, maybe acpi related (present in 2.6.32 to 2.6.37, fixed in 2.6.38) Sebastian Färber
2011-05-03 13:01 ` Don Zickus [this message]
2011-05-03 18:51 ` Sebastian Färber
-- strict thread matches above, loose matches on Subject: below --
2011-05-03 10:24 Sebastian Färber
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