"Brian J. Conway" wrote:
>
> I posted last week in regards to a Tyan Tiger 100 S1832DL motherobard
> that was strangely running processors uncontrollably
> (http://marc.theaimsgroup.com/?l=linux-smp&m=96018117825734&w=2). I
> have since done further research with swapping out hardware finding the
> best available hardware combinations to rule out IRQ mishandling. I
> have tried various BIOS revisions, some with more success than others.
> All of the results have been the same in varying degrees with both MPS
> 1.1 and 1.4 and all the latest kernels. Under the better BIOS
> revisions, xmms will start out racing both CPUs at 50% and then after a
> while drop off to about 2% on each CPU.
I have a similar setup (same motherboard and sound card) and I also observe
the same behavior with xmms. At some point the load increases steadily during
~20 seconds and then drops to zero. It remains there for a while and then the
cycle repeats. The load however never goes above ~50% (on dual 350 MHz PII)
and the average load is ~2%.
I believe this is a xmms problem since I don't observe it with other
applications.
> This is an improvement over
> some of my other results, but intensive things like Quake still run both
> processors at 100% (when only one should be running) and hang the
> machine.
Top will show you that you have the X server _and_ Quake using all
the CPU time. This is quite normal.
The part about hanging the machine could probably be blamed on your
Voodoo3/glide/X server.
Rui Sousa
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