Re: [Xen-users] windows 2k8 rebooted by itself several times, perhaps dom0 heavy load?

[Andrew Lyon <andrew.lyon@xxxxxxxxx>]

On Wed, Jun 9, 2010 at 9:57 AM, Daniel <dandadude@xxxxxxxxx> wrote:
> Hi!
>
> I have a Win2k8 R2 running under my Gentoo dom0.
>
> Sunday night I started compressing a large file on the dom0 linux, and next
> day I saw that during the compression period, the Win2k8 restarted several
> times.
>
> Logs:
> xend.log:
> [2010-06-06 21:31:36 4034] INFO (XendDomainInfo:1903) Domain has shutdown:
> name=mkts id=14 reason=reboot.
> [2010-06-06 21:31:36 4034] DEBUG (XendDomainInfo:2732)
> XendDomainInfo.destroy: domid=14
> [2010-06-06 21:31:38 4034] DEBUG (XendDomainInfo:2207) Destroying device
> model
> [2010-06-06 21:31:38 4034] INFO (image:556) mkts device model terminated
> qemu-dm-mkts.log:
> region type 1 at [c100,c200).
> region type 0 at [f3001000,f3001100).
> squash iomem [f3001000, f3001100).
> reset requested in cpu_handle_ioreq.
> Issued domain 15 reboot
>
> This is very frustrating, because the server is a live server, and reboot is
> not preferred just randomly. And I must say that PV drivers are installed
> too, it didn't even reboot nicely (with shutdownmon) as I can make it reboot
> manualy.
>
> I have Xen 3.4.2 running with 2.6.32 kernel.
>
> What can I do to avoid this reboot? It is ok if it slows down, but it
> shouldn't reboot.
>
> Thanks in advance!
>
> Regards,
> Daniel
>
>
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>

If you have multiple cpus assigned and the crash only happened when
dom0 is under load then you probably need viridian=1 in the domU
config, otherwise it will bugcheck if timer interrupts are delayed for
too long.

Andy

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