retitle 647312 windows XP Standard PC HAL does not work with qemu-kvm >= 0.14
tags 647312 - moreinfo unreproducible
tags 647312 + confirmed
thanks
On 05.12.2011 12:32, Vladimir Stavrinov wrote:
> On Fri, Dec 02, 2011 at 12:28:34PM +0400, Vladimir Stavrinov wrote:
>
>> working, second don't. So we have chance to find out what You ask me:
>> the way to reproduce this strange problem. I will try.
>
> Good news: we have succeed. In short: the core problem is type of HAL:
> "ACPI Uniprocessor PC" have no problem, but "Standard PC" have a
> problem with networking. Don't try to switch HAL on the installed
Aha. It was, actually, one of the possibilities I outlined before,
but didn't check it.
Switching computer type in the device manager works just fine (provided
you actually enabled acpi on the "hardware"). If you're not sure, you
always may run it with -snapshot so it wont write anything to disk, try
to change the HAL type and reboot windows to see if it will still work.
If it boots fine, repeat changing the HAL type but now without -snapshot.
[]
> But may be it is not necessary if "Standard PC" is default setting for
> "-no-acpi" option.
Yes, "Standard PC" will be used when installed on a machine run with
-no-acpi option. Or at least it WAS used with some previous version
of kvm (I remember seeing it) -- now when installing winXP with -no-acpi,
it defaults to "Uniprocessor PC with MPS" (iirc) - with that one,
networking works. But when set to "Standard PC" there and rebooted,
neither networking nor USB works (including USB mouse/tablet - which
was mentioned in this thread).
> So, now You can reproduce and then investigate this problem.
Yes, confirmed, this is a bug. But it seems to be a bug in windows,
or an operator error when performing initial install. It may be
possible to find what exactly changed on the kvm side, but for now
I think it is better to find out how to fix this bug on windows
side.
For fun, once you change the HAL to "Standard PC", it does not offer
any other variant anymore, so the question actually remains how to
force it to rebuild hal from "Standard PC" to something else.
I can switch from "Uniprocessor PC with MPS" to "PC with ACPI" or
to "Standard PC", but can't switch from "Standard PC" to anything
else.
Note also that both this HALs ("Standard PC" and "Uniprocessof with MPS")
works noticeable slower than usual ACPI variant.
Give me some more time.
Thanks,
/mjt
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