[Bug 29374] Unknown Crash or Kernel Panic in Gnome with smp system.

[David Giard]

Public bug reported:
https://launchpad.net/malone/bugs/29374

Affects: kernel-package (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
i have an ibm, intellistation m pro (6868-76U) Dual P3 1Ghz, 2Gig Ram
with an nvidia quadro2 32meg video card. I've been having problem on my
system when using multiprocessors, everything seem to work fine but at
different interval (from 10 minutes to 3 days) the image just freeze and
pressing numlock on the keyboard doesnt change the status of the numlock
led. Then the only thing to do is to power down the computer to restart.
I have the same problem on breezy using kernel 2.6.10, 2.6.12 and on
dapper using 2.6.15. I've been seeing those message on kern.log i dont
know if its related:

[4296812.924000] Uhhuh. NMI received for unknown reason 20 on CPU 0.
[4296812.924000] Dazed and confused, but trying to continue
[4296812.924000] Do you have a strange power saving mode enabled?
[4296812.928000] Uhhuh. NMI received for unknown reason 30 on CPU 0.
[4296812.928000] Dazed and confused, but trying to continue
[4296812.928000] Do you have a strange power saving mode enabled?

when the computer doesnt freeze, the application usually start to shut
down by themselves like if i just pressed (ctrl-alt-backspace) except
that i cannot just restart everything(using telinit 1, telinit 2). I
cant even do ctrl-alt-del without having a lot of garbage about missing
libraries or something.. then i also need to power down the computer to
restart.

When i disable the second cpu in the bios everything seem to work
perfectly. And with windoze everything work just fine with the two cpu.
in fact it is strangly stable... the world is upsidedown.. plz tell me
im not crazy.. :P