Xen users - Jun 2010 - windows 2k8 rebooted by itself several times, perhaps dom0 heavy load?

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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> 
> 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.
Which PV drivers? Is there a message in the event log about a BSoD?

What are your crash settings in Windows set to? Get it to stop on crash
so you can see the BSoD (although there is a bug in Xen that prevents
you seeing it in some versions - the screen gets garbled).

James

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On Wed, Jun 9, 2010 at 9:57 AM, Daniel <dandadude@gmail.com>
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
>
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@lists.xensource.com
> http://lists.xensource.com/xen-users
>
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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