PREEMPT problems

Michel Dänzer michel at daenzer.net
Sat Apr 3 22:56:45 EST 2004


On Sat, 2004-04-03 at 05:06, Benjamin Herrenschmidt wrote:
> On Sat, 2004-04-03 at 02:43, Michel Dänzer wrote:
> > On Fri, 2004-04-02 at 18:00, Michel Dänzer wrote:
> > >
> > > Note that the stuck processes only started with 2.6.5-rc3-ben0 here; the
> > > last iteration of 2.6.5-rc2-ben0 is actually quite usable, albeit not
> > > perfect either.
> >
> > I forgot to mention that the spurious segfaults also seemed much rarer
> > with 2.6.5-rc2-ben0.
>
> I see no reason for that. I just added more protection ;)

Sure enough, -rc2-ben0 is now behaving just as badly as -rc3-ben0.
Probably just fluctuation.

> I also added a WARN_ON(), do you see it triggered in dmesg ?

I'm not sure what those would look like, but

zgrep -i warn /var/log/kern.log*

doesn't seem to yield anything relevant.


--
Earthling Michel Dänzer      |     Debian (powerpc), X and DRI developer
Libre software enthusiast    |   http://svcs.affero.net/rm.php?r=daenzer


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