Re: [Xen-devel] pv_ops dom0 kernel failure with ata_piix

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Tue, Dec 30, 2008 at 06:52:11PM +0200, Pasi Kärkkäinen wrote:
> On Tue, Dec 30, 2008 at 11:47:40AM -0500, Todd Deshane wrote:
> > 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?
> > 
> 
> No, it's not a hard crash.. I'm able to reboot the box with ctrl-alt-del. 
> 
> > 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.
> >
> 
> Yep, it is SMP kernel.. 
>  
> > 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.
> > 
> 
> The problem seems to be the IDE controller/disk is not detected at all..
> because the device gets disabled for some reason during ata_piix
> loading/probing.. 
> 
> That is the only disk I have, so the root partition is on it.
> 
> Same kernel works just fine on baremetal without Xen.
> 

So I guess the subject should be 'failure with ata_piix' instead of 'crash'.. 

Anyway, there seems to be problems with ata_piix too.. in addition to AHCI.

Jeremy: Can you think of anything to try? 

-- Pasi

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel