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Re: [Qemu-devel] [Bug 639651] Re: DRIVER_IRQL_NOT_LESS_OR_EQUAL booting


From: Michal Suchanek
Subject: Re: [Qemu-devel] [Bug 639651] Re: DRIVER_IRQL_NOT_LESS_OR_EQUAL booting WIndows XP with Synaptics driver installed
Date: Thu, 7 Oct 2010 11:51:47 +0200

On 7 October 2010 11:05, Jes Sorensen <address@hidden> wrote:
> Just to be sure, you are not using the virtio-blk driver for Windows
> here?
>
> I have seen similar crashes with the older version of virtio-blk when used on
> recent versions of KVM.
>
> --
> DRIVER_IRQL_NOT_LESS_OR_EQUAL booting WIndows XP with Synaptics driver 
> installed
> https://bugs.launchpad.net/bugs/639651
> You received this bug notification because you are a member of qemu-
> devel-ml, which is subscribed to QEMU.
>
> Status in QEMU: New
> Status in Debian GNU/Linux: New
>
> Bug description:
> Positng the issue here since I did not get any reply on the ML.
>
> I was trying to update some windows XP (SP3) images in kvm.
>
> It worked fine several times but last time I added mass storage
> drivers to sysprep and now on the second boot after reseal (the first
> is mini-setup) I get a BSOD with message
> DRIVER_IRQL_NOT_LESS_OR_EQUAL.
>
> It turns out that the error is unrelated to storage drivers. It is triggered 
> by Synaptics driver installing for the PS2 mouse in kvm (which does not 
> happen in VirtualBox or on real hardware).
>
> The image is originally created on hardware with MP acpi (not virtualization).
>
> qemu-kvm                  0.12.5+dfsg-2
>
Actually the issue is caused by the Synaptics touchpad driver binding
to the PS/2 mouse device in qemu.

I have no idea how PS/2 devices are detected but the one present in
qemu is misdetected as a synaptics touchapd by the Synaptics driver
for Windows.

As a workaround I have patched my qemu to not enable the PS/2 mouse device.

Thanks

Michal



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