Re: Freezing Windows 2008 x64bit guest

Gleb Natapov
2010-07-19T07:42:23Z

On Mon, Jul 19, 2010 at 10:17:02AM +0300, Harri Olin wrote:
> Gleb Natapov kirjoitti:
> >On Thu, Jul 15, 2010 at 03:19:44PM +0200, Christoph Adomeit wrote:
> >>
> >>But one Windows 2008 64 Bit Server Standard is freezing regularly.
> >>This happens sometimes 3 times a day, sometimes it takes 2 days
> >>until freeze. The Windows Machine is a clean fresh install.
> >>
> >>By Freezing I mean that the Machine console still shows the
> >>windows logo but does not accept any keystroke and does not
> >>answer
> >>to ping or rdp or whatever. The virtual cpu-load is then shown
> >>as 100% (by proxmox).
>
> Hi
>
> I think I have seen same problem occur on my Windows 2008 SBS SP2
> 64bit system, but a bit less often, only like once a week.
>
> Short description of system:
> Supermicro X7SBL-LN2 motherboard, Q8300 cpu, 8GB memory, Areca
> ARC-1210 RAID controller.
>
> Linux kernel 2.6.33.1, qemu-kvm-0.11.1, windows 2008 quest is the
> only one at the moment.
>
> I had to step down to 0.11.1 from 0.12.x as that was more unstable,
> windows 2008 bluescreened every second day. Also 0.11.1 did the same
> when I applied -rtc-td-hack, I think. (might also be -cpu host,
> which I removed at the same time but I think the crashing started
> when I added -rt-td-hack).
> Sample bluescreen error codes from that time:
> 0x0000003b (0x00000000c0000005, 0xfffff80001cb8842, 0xfffffa600
> 0x0000003b (0x00000000c0000005, 0xfffff80001c9c842, 0xfffffa600
> 0x0000000a (0x0000000000000080, 0x000000000000000c, 0x000000000
> 0x0000003b (0x00000000c0000005, 0xfffff80001c5d842, 0xfffffa600
> Also I think I have seen qemu crashing once..
>
> Now I haven't seen crashes but only freezes with qemu on 100% and
> virtual system unresponsive.
>
> qemu command line:
> /usr/local/qemu-kvm-0.11.1/bin/qemu-system-x86_64 -drive
> file=/dev/rigelvg/w2k8system,cache=none,boot=on -drive
> file=/dev/rigelvg/w2k8data,cache=none -m 6144 -vnc :1 -net
> nic,macaddr=C0:FF:12:FB:AA:01,model=e1000 -net tap -smp 4 -localtime
>
>
Try with different model then e1000 please. Default driver that comes
with Windows known to have problems.

> >When hang occurs ensure that problematic vm is the only on on the server and run
> >kvm_stat. Send output here. Also do the following:
> >
> ># mount -t debugfs debugfs /sys/kernel/debug
> ># echo kvm > /sys/kernel/debug/tracing/set_event
> ># sleep 1
> ># cat /sys/kernel/debug/tracing/trace > /tmp/trace
> >
> >Send /tmp/trace here too, but it may be huge, so send only last 1000
> >lines.
>

--
Gleb.