PREEMPT problems

[Benjamin Herrenschmidt]

On Fri, 2004-04-02 at 00:32, Colin LEROY wrote:
> Hi,
>
> This won't be really helpful, as I have no time to investigate, but I seem
> to have problems with preempt (and latest main-tree BK). After a few hours
> of uptime, I get hanging processes (sed, cvs (can't be network related as
> the CVSROOT is local)) and gcc segfaults while compiling kernel.

Oh, btw, finding out where those are beeing stuck may help. A good
way to do that is to use xmon "P" command, look at the KSP for one
of those processes (kernel stack pointer) and do a backtrace based
on it with "b <ksp value>"

Ben.


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