[Xen-devel] Re: cs 23453:4f4970d2848d beaks Win 7

[Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>]

On Thu, 2011-09-01 at 10:08 +0100, Christoph Egger wrote:
> On 09/01/11 10:50, Ian Campbell wrote:
> > On Thu, 2011-09-01 at 09:36 +0100, Christoph Egger wrote:
> >> cs 23453:4f4970d2848d breaks Win 7. It fails to initialize the CPUs
> >> as shown in the device manager and this causes a BSOD on shutdown.
> >
> > Are you 100% sure it's that cset?
> 
> Yes, I am. I found that c/s by bisecting. I used the latest xen-kernel
> and toolchain, just replaced the hvmloader binary and booted a
> Win7 guest (both 32bit and 64bit) with one vcpu.
> 
> An hvmloader binary built from c/s 23452 works.
> BTW: I use the rombios.
> 
>  > It moves a few things around but it doesn't actually remove anything.
> 
>  From a first glance, bios_info_setup() is called earlier with this c/s.

I guess something could be clobbering that datastructure but there isn't
much of interest in it now anyway. This stuff has subsequently been
reorganised even more and moved around etc. I presume it is broken even
for xen-unstable.hg 23809:85b29185c911?

I'll see if I can repro. Can you post your guest cfg file please?

Ian.



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