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Re: kernel preemption and segfault



Benjamin Herrenschmidt wrote:

On Fri, 2004-10-08 at 17:36, Vincent Bernat wrote:

OoO Vers la fin de l'après-midi du jeudi 07  octobre 2004, vers 16:53,
Mathieu Virbel <tito@bankiz.org> disait:


With kernel preemption, all work perfectly.
Without kernel preemption, they are many bugs:
- under medium/high load, gcc crash randomly
- mozilla have trouble to render (each refresh show a new page)
- xmms segfault under medium/high load (sound crackle and segfault)
- mplayer too

I think you switched with and without.


And on time, X freeze.

Kernel preemption isn't usuable under linuxppc ?

The situation is going better but it is still not usable.


Can you try isolating a given activity or driver that cause the
stability problem ? It should work, really...

For example, try running without the cpufreq driver ... or without the
sound driver, etc...

Ben.

Problem exist without cpufreq.
I'm try without running X, only in console: nothing append.

I use XFree 4.3 from debian testing, and with radeon driver, without dri (for
make pmdisk work)

Test in progress...

++tito;

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