Re: [Qemu-devel] current qemu git does not work with win7 guest

[Michael Tokarev <mjt@tls.msk.ru>]

On 07.05.2012 11:45, Gleb Natapov wrote:
> On Mon, May 07, 2012 at 10:06:58AM +0400, Michael Tokarev wrote:
>> On 06.05.2012 23:03, Michael Tokarev wrote:
>>> This is just a heads-up.  I tried building current
>>> qemu git today and running a win7 guest in it.  Neither
>>> already installed guest (which finds new hardware and
>>> want to reboot) nor freshly installed win7 boots:
>>> it boots for the first time, next it installs drivers,
>>> but on reboot it BSODs with
>>>
>>> STOP: 0x0000005C (0x000000000000010B, 0x0000000000000003,
>>>  0x000000000000000, 0x000000000000000)
>>>
>>> which is - according to ms docs - some HAL initialization
>>> error, maybe related to ACPI.
>>>
>>> But apparently subsequent boots works.  The freshly installed
>>> win7 asked me something (even suggested to run safe mode
>>> or something like that), I told it to boot normally and it
>>> booted, and - seemingly - works since that.
>>>
>>> Still, this first-reboot-stop-0x0000005c is something I
>>> have never seen from qemu or kvm before, even very old
>>> versions worked fine.
>>
>> And the previously installed guest never reboots in currrent
>> git version, always giving the 0x5c STOP code after first
>> boot.  This is aint good at all, as existing guests does
>> not work anymore..... :(
>>

>>> P.S. I used 32bit version of qemu userspace and 32bit
>>> version of win7 guest (so far), with 1G guest ram and
>>> -cpu host, from AthlonII host cpu, and with -smp 1.

> Can you verify that issue also exist in 64 bit version? What about
> qemu-kvm?

I'm trying.  But the problem is that right now I'm swamped
with other work.  So far win7 x64 appears to work, it
reboots without showing this "stop" thing or other issues,
even with 32bit qemu userspace.

Hmm.  I've seen something has been mentioned about seabios and
borken 32 bit winXP guest due to some 64bit patch, just today...
Lemme check...

/mjt