From: "Benjamin Monate <Benjamin Monate" <Benjamin.Monate@lri.fr>
To: linux-kernel@vger.kernel.org
Subject: Re: Strange lockup of the timer with 2.4.0-test10 SMP (and older)
Date: Tue, 21 Nov 2000 17:27:33 +0100 (MET) [thread overview]
Message-ID: <14874.41589.359267.717984@sun-demons> (raw)
In-Reply-To: <Pine.GSO.3.96.1001121151759.19886A-100000@delta.ds2.pg.gda.pl>
In-Reply-To: <E13xvRr-0003u9-00@the-village.bc.nu> <Pine.GSO.3.96.1001121151759.19886A-100000@delta.ds2.pg.gda.pl>
> I guess not -- the timer interrupt and the NMI use different I/O APIC
> inputs. If both are stuck, it's probably 8254 that gets reprogrammed. I
> suppose XFree86 might be at fault -- does it happen with the NMI watchdog
> disabled, either?
Yes. I just enabled the nmi watchdog to try to debug the problem. It did
not change anything.
About the 8254, the kernel log contains :
Nov 20 17:15:15 pc8-118 kernel: MP-BIOS bug: 8254 timer
not connected to IO-AP
IC
Nov 20 17:15:15 pc8-118 kernel: ...trying to set up timer (IRQ0)
through the 8259A ...
Nov 20 17:15:15 pc8-118 kernel: ..... (found pin 0) ...works.
But this does not seem to annoy the kernel.
Is there anyway to restore the 8254 to a valid state without rebooting ?
--
| Benjamin Monate | mailto:Benjamin.Monate@lri.fr |
| LRI - Bât. 490
| Université de Paris-Sud
| F-91405 ORSAY Cedex
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next prev parent reply other threads:[~2000-11-21 16:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-11-16 16:36 Strange lockup of the timer with 2.4.0-test10 SMP (and older) Benjamin Monate <Benjamin Monate
[not found] ` <3A15CE34.EF2FE3CC@uow.edu.au>
2000-11-20 15:31 ` Benjamin Monate <Benjamin Monate
2000-11-20 18:26 ` Fort David
2000-11-20 18:11 ` Benjamin Monate <Benjamin Monate
2000-11-20 18:13 ` Alan Cox
2000-11-21 14:31 ` Maciej W. Rozycki
2000-11-21 16:27 ` Benjamin Monate <Benjamin Monate [this message]
2000-11-21 17:35 ` Maciej W. Rozycki
2000-11-22 9:45 ` Benjamin Monate <Benjamin Monate
[not found] ` <Pine.GSO.3.96.1001123183522.6381H-100000@delta.ds2.pg.gda.pl>
2000-11-23 19:39 ` Benjamin Monate <Benjamin Monate
[not found] ` <Pine.GSO.3.96.1001127154910.13774O-100000@delta.ds2.pg.gda.pl>
2000-11-27 16:58 ` Benjamin Monate <Benjamin Monate
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