> Serguei Koubouchine wrote:
>
> > Hi, everybody!
> >
> > I'm experiencing total lockups when system is doing a lot of disk activity
> > with IDE disk. No such lockups occur when working out of SCSI HDD.
> >
>
> 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...
=======================================================================
Serguei Koubouchine aka the Tamer < > The impossible we do immediately.
e-mail: ksi@gu.net SK320-RIPE < > Miracles require 24-hour notice.
=======================================================================
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