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Re: [Xen-devel] pv_ops dom0 kernel crashes

To: "Pasi Kärkkäinen" <pasik@xxxxxx>
Subject: Re: [Xen-devel] pv_ops dom0 kernel crashes
From: "Todd Deshane" <deshantm@xxxxxxxxx>
Date: Tue, 30 Dec 2008 11:47:40 -0500
Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx
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On Tue, Dec 30, 2008 at 11:28 AM, Pasi Kärkkäinen <pasik@xxxxxx> wrote:
> > > Try changing the SATA mode of the disk in the BIOS to either legacy or
> > > ATA, depending
> > > on what you bios supports.
> > >
> > > There is still a known issue with some of the AHCI stuff.
> > >
> >
> > I'm not using AHCI at all.. AHCI (SATA) controller does not have any disks
> > plugged in.
> >
> > My (only) disk is attached to IDE/PATA ICH6 controller..
> >
> I tried disabling AHCI anyway (even when I'm not using the AHCI SATA
> controller), but it didn't help.
> Booting the pv_ops dom0 kernel still fails.. because the IDE/PATA controller
> still gets disabled (just like in the logs above) for some unknown reason.
> -- Pasi

So from the log it looks like you are getting a hard crash?

Did you try adding noreboot to the xen command line and then trying
to get any more information with sysreq stuff?

Another thing that I noticed in the log is:

irq 12: nobody cared (try booting with the "irqpoll" option)

Is it an smp kernel? I had some weird problems when passing nosmp at
one point.

I don't recognize this crash, those module traces, at least for me were
non-fatal and didn't cause a crash. I was normally just dropped to a
initramfs prompt in the case when the disk was not detected properly.

I was then able to at least look around and check that modules were
loaded correctly etc.

Todd Deshane

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