[Bug 495932] Re: Karmic/ AMD64 --Video/mouse/keyboard freezes

[Richard Waters]

I have just noticed, by accident (because I had the System Monitor
open!) that just before a crash the duel cores I have seem to steadily
rise in activity, %'s slowly but steadily increasing and then *POP* I
crashed.

After a reboot:
CPU1 = 1.1% with CPU2 = 5.5% (on average)

Opening a program:
CPU1 = 4.0% with CPU2 = 12% (on average)

After leaving the machine overnight, downloading torrents and running music:
CPU1 = 17% with CPU2 = 45% (while resting, just working)

Continue to use machine after overnight use, open Firefox3.5, Pino, Pidgin, Thunderbird:
CPU1 = 35% with CPU2 = 72% (then slowly rising from there)

*CRASH*

The last I saw before the crash CPU1 had hit around 82% and CPU2 was
showing 100% for a couple of seconds.

I have considered that this may have been an overheating problem at
first but it is setting in a HUGE server case with only 2xhdd's and the
30cm side fan and 2 power supply fans, the CPU fan is fine.  Besides,
the machines longest run before a crash went for nearly 48hrs under
various loads.

I have also noticed that if I see the CPUs start to look too high in
numbers, a logout and log back in seems to alleviate the problem for a
while, but this means I need to keep an eye on the system monitor, and
sometimes, one program will "trip it up", almost any program at all.

Maybe, someone will make sense of this report, because Im running out of
ideas.  I know enough about linux to get myself into trouble but not
always enough to get out; and at the moment I have tried everything that
I am capable of to fix this beside buy brand new hardware or go back to
Ubuntu 8.10?!?!

-- 
Karmic/ AMD64 --Video/mouse/keyboard freezes 
https://bugs.launchpad.net/bugs/495932
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