Re: 1352 NUL bytes at the end of a page? (was Re: Assertion `s && s->tree' failed: The saga continues.)

Steven Cole
2004-05-16T22:11:57Z

On Sunday 16 May 2004 03:29 pm, Andrew Morton wrote:
> Steven Cole <elenstev@mesatop.com> wrote:
> >
> > Anyway, although the regression for my particular machine for this
> > particular load may be interesting, the good news is that I've seen
> > none of the failures which started this whole thread, which are relatively
> > easily reproduceable with PREEMPT set.
>
> So... would it be correct to say that with CONFIG_PREEMPT, ppp or its
> underlying driver stack
>
> a) screws up the connection and hangs and
>
> b) scribbles on pagecache?
>
> Because if so, the same will probably happen on SMP.
>
Perhaps someone has the hardware to test this.

To summarize my experience with the past 24 hours of testing:
Without PREEMPT , everything is rock solid.

I may have a window of time later this evening to continue testing,
and I (cringes at the thought) may repeat some bk pulls with
PREEMPT set.

Later,
Steven