From: Josh McKinney <forming@charter.net>
To: linux-kernel@vger.kernel.org
Subject: Re: Catching NForce2 lockup with NMI watchdog
Date: Fri, 5 Dec 2003 03:33:49 -0500 [thread overview]
Message-ID: <20031205083349.GA15152@forming> (raw)
In-Reply-To: <16336.13962.285442.228795@alkaid.it.uu.se>
On approximately Fri, Dec 05, 2003 at 08:40:58AM +0100, Mikael Pettersson wrote:
> Jesse Allen writes:
> > Hi,
> >
> > I have a NForce2 board and can easily reproduce a lockup with grep on an IDE
> > hard disk at UDMA 100. The lockup occurs when both Local APIC + IO-APIC are
> > enabled. It was suggested to me to use NMI watchdog to catch it. However, the
> > NMI watchdog doesn't seem to work.
> >
> > When I set the kernel parameter "nmi_watchdog=1" I get this message in
> > /var/log/syslog:
> > Dec 4 20:10:30 tesore kernel: ..MP-BIOS bug: 8254 timer not connected to
> > IO-APIC
> > Dec 4 20:10:30 tesore kernel: timer doesn't work through the IO-APIC -
> > disabling NMI Watchdog!
> >
> > "nmi_watchdog=2" seems to work at first, In /var/log/messages:
> > Dec 4 20:13:11 tesore kernel: testing NMI watchdog ... OK.
> > but it still locks up.
>
> The NMI watchdog can only handle software lockups, since it relies on
> the CPU, and for nmi_watchdog=1 the I/O-APIC + bus, still running.
> Hardware lockups result in, well, hardware lockups :-(
So does this confirm that the lockups with nforce2 chipsets and apic
is actually a hardware problem after all?
--
Josh McKinney | Webmaster: http://joshandangie.org
--------------------------------------------------------------------------
| They that can give up essential liberty
Linux, the choice -o) | to obtain a little temporary safety deserve
of the GNU generation /\ | neither liberty or safety.
_\_v | -Benjamin Franklin
next prev parent reply other threads:[~2003-12-05 8:35 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-05 4:54 Catching NForce2 lockup with NMI watchdog Jesse Allen
2003-12-05 7:40 ` Mikael Pettersson
2003-12-05 8:33 ` Josh McKinney [this message]
2003-12-05 12:14 ` Mikael Pettersson
2003-12-05 14:19 ` Craig Bradney
2003-12-05 17:05 ` Craig Bradney
2003-12-05 18:11 ` Josh McKinney
2003-12-05 8:58 ` Mike Fedyk
2003-12-05 12:06 ` Mikael Pettersson
2003-12-08 2:20 ` Bob
2003-12-09 14:21 ` Maciej W. Rozycki
2003-12-09 16:35 ` Bob
2003-12-10 13:41 ` Maciej W. Rozycki
2003-12-12 16:01 ` bill davidsen
2003-12-12 16:47 ` Maciej W. Rozycki
2003-12-12 16:57 ` Richard B. Johnson
2003-12-12 17:21 ` Maciej W. Rozycki
2003-12-13 5:16 ` Bill Davidsen
2003-12-15 13:23 ` Maciej W. Rozycki
2003-12-12 22:27 ` George Anzinger
2003-12-15 13:13 ` Maciej W. Rozycki
2003-12-15 21:42 ` George Anzinger
2003-12-16 13:37 ` Maciej W. Rozycki
2003-12-16 13:57 ` Richard B. Johnson
2003-12-16 15:47 ` Maciej W. Rozycki
2003-12-16 16:44 ` Richard B. Johnson
2003-12-16 16:50 ` Maciej W. Rozycki
2003-12-16 17:26 ` George Anzinger
2003-12-16 20:54 ` Maciej W. Rozycki
2003-12-16 21:53 ` George Anzinger
2003-12-17 14:03 ` Maciej W. Rozycki
2003-12-05 19:11 Allen Martin
2003-12-05 20:18 ` cheuche+lkml
2003-12-05 20:34 ` Prakash K. Cheemplavam
2003-12-05 21:02 ` Mike Fedyk
2003-12-05 20:55 ` Jesse Allen
2003-12-06 3:20 ` Jesse Allen
2003-12-05 20:36 ` Jesse Allen
2003-12-05 22:55 ` Mike Fedyk
2003-12-05 23:11 ` Craig Bradney
2003-12-05 20:56 Allen Martin
2003-12-05 22:41 b
2003-12-07 19:58 Fixes for nforce2 hard lockup, apic, io-apic, udma133 covered Ian Kumlien
2003-12-08 2:07 ` Ross Dickson
2003-12-09 18:12 ` Catching NForce2 lockup with NMI watchdog Ian Kumlien
2003-12-09 22:04 ` Craig Bradney
2003-12-09 23:13 ` Ian Kumlien
2003-12-10 6:14 ` Bob
2003-12-10 7:51 ` Craig Bradney
2003-12-13 3:56 Ross Dickson
2003-12-15 13:16 ` Maciej W. Rozycki
2003-12-17 18:14 Ross Dickson
2003-12-17 21:41 ` George Anzinger
2003-12-17 21:48 ` George Anzinger
2003-12-18 1:30 ` Ross Dickson
2003-12-18 14:32 ` Maciej W. Rozycki
2003-12-19 4:17 ` Ross Dickson
2003-12-19 15:35 ` Maciej W. Rozycki
2003-12-18 14:04 ` Maciej W. Rozycki
2003-12-18 14:22 ` Craig Bradney
2003-12-19 5:38 ` Ross Dickson
2003-12-19 10:36 ` Craig Bradney
2003-12-19 4:06 ` Ross Dickson
2003-12-19 15:33 ` Maciej W. Rozycki
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