Re: IDE lockups in 2.1.95+

Serguei Koubouchine (ksi@gu.net)
Tue, 14 Apr 1998 12:32:47 +0300 (EEST)


On Mon, 13 Apr 1998, mlord wrote:

> Serguei Koubouchine wrote:
> >
> ...
> > > Before I applied MLord's latest SMP-patch IDE was useless under loadin an
> > > SMP-environment. My test consists of:
> > >
> > > while [ true ] recompile kernel
> > > dd if=/dev/hda of=/dev/null
> > > dd if=/dev/hdc of=/dev/null
> > > ssh MACHINE "cat /dev/zero" | /dev/null (10 Mb/s)
> > > a couple of updatedb's
> > >
> > > Before the SMP-ide patch the machine crashed after a couple of minutes.
> > > Now it's been going for 10 hours (yeaa, I have a spare dual PPro to play with
> > > :-).
> > >
> > > 2.1.95 + ide-2.1.95+.pat1
> >
> > I do have this patch applied, but the system still hangs under a heavy
> > load (when doing "make -j" on glibc LA sometimes hits 100+)...
> >
> > The lockup seems to be caused by a lost interrupt from DMA controller...
>
> Turn on the DEBUG_SPINLOCKS (set it to 2) in
> linux/include/asm/spinlock.h
> and see if it catches anything from somewhere *other than* sched.c.

OK, I'll try it...

=======================================================================
Serguei Koubouchine aka the Tamer < > The impossible we do immediately.
e-mail: ksi@gu.net SK320-RIPE < > Miracles require 24-hour notice.
=======================================================================

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu