Re: [Xen-devel] Reboot from OS will hang with pvops dom0 kernel

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Fri, May 28, 2010 at 01:26:12PM +0300, Sergey Kononenko wrote:
> Hi,
> 
> I've encountered the same problem. After reboot machine went to sleep
> (or power off) mode, so I can't even reset it through IPMI, only
> powercycle (by IPMI too) works.
> I saw this problem only on new machine (Core i7 based, Xeon E5520,
> Supermicro X8DTL motherboard), but on Pentium D and Supermicro
> PDSMi reboot works.
> Also server hangs after reboot only with pvops Dom0 kernels (I
> tried stable-2.6.32.x and stable-2.6.33.x with hypervisors 3.4.3-rc and
> 4.0.0), but reboots normally with 2.6.30.4 "Xenified" kernel (under
> 3.4.3-rc and 4.0.0 too). All kernels and hypervisors were built for
> x86-64 architecture.
> Changing BIOS settings related to ACPI and reboot didn't help.
> I tried all reboot= options in hypervisor command line: acpi, kbd,
> triple, but it didn't help when pvops kernels were used.
> 

Are there any debug/error messages printed when/before it hangs? 

-- Pasi


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