AMD XP Problem solved

AMD XP Problem solved

[John Lenz]

A while back I reported a crash starting with kvm-29 with Windows XP guest
on AMD processors.

kvm-33 still fails for me, so I tried to use the kvm git kernel module,
(after using make sync LINUX=../../kvm.git from kvm-33 directory), but the
compile fails with (on the 2.6.20 ubuntu feisty kernel)

/home/john/software/kvm/kvm-33/kernel/kvm.h:302: error: field
‘preempt_notifier’ has incomplete type


So I switched the kvm branch to "for-linus" and did a make sync.  This
compiles and runs, but Windows XP still crashes.

Then I notice that bac27d35cbbf7c641efcc75b5330df8717d6db65 shows up in
linus's tree, but not in the for-linus kvm branch.

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=bac27d35cbbf7c641efcc75b5330df8717d6db65


So applying that small patch on top of the for-linus kvm branch, and then
doing make sync from kvm-33, the windows XP guest boots up and works fine.

It would be nice to get a kvm-34 that includes this (and the other changes)

John



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Re: AMD XP Problem solved

[Avi Kivity]

John Lenz wrote:
> A while back I reported a crash starting with kvm-29 with Windows XP guest
> on AMD processors.
>
> kvm-33 still fails for me, so I tried to use the kvm git kernel module,
> (after using make sync LINUX=../../kvm.git from kvm-33 directory), but the
> compile fails with (on the 2.6.20 ubuntu feisty kernel)
>
> /home/john/software/kvm/kvm-33/kernel/kvm.h:302: error: field
> ‘preempt_notifier’ has incomplete type
>   

This is fixed now, I think -- I'll check whether I forgot to push.

>
> So I switched the kvm branch to "for-linus" and did a make sync.  This
> compiles and runs, but Windows XP still crashes.
>   

Note that for-linus is a temporary branch and is not maintained outside 
the merge window.  The nearest equivalent is Linus' tree.

> Then I notice that bac27d35cbbf7c641efcc75b5330df8717d6db65 shows up in
> linus's tree, but not in the for-linus kvm branch.
>
> http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=bac27d35cbbf7c641efcc75b5330df8717d6db65
>
>
> So applying that small patch on top of the for-linus kvm branch, and then
> doing make sync from kvm-33, the windows XP guest boots up and works fine.
>
> It would be nice to get a kvm-34 that includes this (and the other changes)
>
>   

Due out real soon now.  It was delayed by travel and by smp migration fixes.

-- 
error compiling committee.c: too many arguments to function


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