Re: Bug#707257: linux-image-3.8-1-686-pae: KVM crashes with "entry failed, hardware error 0x80000021"

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On Sun, Jun 16, 2013 at 02:25:04AM +0200, Stefan Pietsch wrote:
> On 13.06.2013 16:59, Stefan Pietsch wrote:
> > On 13.06.2013 15:42, Paolo Bonzini wrote:
> >> Il 13/06/2013 07:57, Stefan Pietsch ha scritto:
> >>> git bisect tells me:
> >>> 79fd50c67f91136add9726fb7719b57a66c6f763 is the first bad commit
> >>
> >> This is an s390 commit, so the bisect somehow went wrong.  Can you
> >> confirm that 3.7 works and 3.8 doesn't?
> > 
> > Confirmed. Something went wrong.
> > I replayed the bisect log and now I have
> > 
> > git bisect bad 9626357371b519f2b955fef399647181034a77fe
> > git bisect good ef4e359d9b9e2dc022f79840fd207796b524a893
> > git bisect good b5c78e04dd061b776978dad61dd85357081147b0
> > git bisect good 9e2d59ad580d590134285f361a0e80f0e98c0207
> > git bisect bad 69086a78bdc973ec0b722be790b146e84ba8a8c4
> > git bisect good 9ecf9b085a0926e07c78c08a07296bbfd1c37d07
> > git bisect bad 21fbd5809ad126b949206d78e0a0e07ec872ea11
> > git bisect bad 79fd50c67f91136add9726fb7719b57a66c6f763
> > git bisect bad aa11e3a8a6d9f92c3fe4b91a9aca5d8c23d55d4d
> > git bisect good 66cdd0ceaf65a18996f561b770eedde1d123b019
> > git bisect bad d99e415275dd3f757b75981adad8645cdc26da45
> > 
> > So please wait for my results.
> 
> 
> Bisecting leads to
> 
> git bisect bad 378a8b099fc207ddcb91b19a8c1457667e0af398
> git bisect good 007a3b547512d69f67ceb9641796d64552bd337e
> git bisect good 1f3141e80b149e7215313dff29e9a0c47811b1d1
> git bisect good 286da4156dc65c8a054580fdd96b7709132dce8d
> git bisect bad 25391454e73e3156202264eb3c473825afe4bc94
> git bisect good 218e763f458c44f30041c1b48b4371e130fd4317
> 
> 
> first bad commit: [25391454e73e3156202264eb3c473825afe4bc94]
> KVM: VMX: don't clobber segment AR of unusable segments.
> 
> 
> 25391454e73e3156202264eb3c473825afe4bc94
> emulate_invalid_guest_state=0 -> hangs and shows "KVM: entry failed"
> emulate_invalid_guest_state=1 -> hangs
>
With emulate_invalid_guest_state=1 the commit does nothing. Can you
double check that 218e763f458c44f30041c1b48b4371e130fd4317 works for you
with emulate_invalid_guest_state=1?
 
--
			Gleb.
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