Messages in this thread | | | Date | Wed, 21 Feb 2001 17:16:56 +0100 (MET) | From | "Maciej W. Rozycki" <> | Subject | Re: Maybe a bug |
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On Mon, 19 Feb 2001, Matthias Kleine wrote:
> The problem appears on a machine using the pretty new ASUS CUVX-D Dual Socket > 370 Motherboard, so there may be a chance for an unknown bug ;-). With NMI > watchdog activated, a 2.4.x Kernel is not willing to boot on this machine, it > just stops booting at a very early time, giving the latest message > "activating NMI watchdog ..." and then blocking completely. Therefore, I set
Hmm, you state the watchdog works from time to time and the log you provided confirms the statement -- it reports:
> ..TIMER: vector=49 pin1=2 pin2=0 > activating NMI Watchdog ... done.
What chipset do you use (check with lspci)?
In any case the code should not hang there in any case -- it the watchdog appears stuck, it reports it and goes on. A hang almost surely means hardware locked up.
> nmi_watchdog = 0, when the system boots properly, but leaves some crucial > message in /var/log/messages: > > Feb 19 19:37:17 delphin kernel: testing the IO APIC....................... > Feb 19 19:37:17 delphin kernel: > Feb 19 19:37:17 delphin kernel: WARNING: unexpected IO-APIC, please mail > Feb 19 19:37:17 delphin kernel: to linux-smp@vger.kernel.org > Feb 19 19:37:17 delphin kernel: .................................... done.
No need to worry. The code finds an unknown bit set in the version register (well, the bit is unknown to the code -- the bit is documented and we should mark it as such in the code soon, probably as a part of P4 support).
> Let me say, that the system seems to be usable after the boot, but when > starting X, some strange drawings hush over the screen. Afterwards, X is > running properly. Using a 2.2.x kernel this behaviour doesn't appear, with a > 2.4.x kernel, it is reproducable.
Various reports seem to indicate XFree86 cannot cope with 2.4 SMP as it should. It's possible they do not handle synchronization well.
-- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available +
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