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From: Brian Jackson <brian@vten.us>
Date: Wed, 22 Oct 2014 08:48:11 -0500
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Subject: Re: [Qemu-devel] Regression in 3.17 and 3.18
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To: qemu-devel@nongnu.org
Cc: Tobias Geiger <tobias.geiger@vido.info>

On Wednesday, October 22, 2014 02:58:13 PM Tobias Geiger wrote:
> Hello,
> 
> when i start my KVM Guest (Windows 8 with OVMF, but also happens with
> Seabios) under 3.17 (or 3.18-rc1) i get:


Your best bet is probably going to be to git bisect the kvm kernel tree to see 
which change actually broke it.


> 
> KVM internal error. Suberror: 1
> emulation failure
> EAX=00000000 EBX=00000000 ECX=00000000 EDX=000106a5
> ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
> EIP=0000fff2 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0
> ES =0000 00000000 0000ffff 00009300
> CS =f000 ffff0000 0000ffff 00009b00
> SS =0000 00000000 0000ffff 00009300
> DS =0000 00000000 0000ffff 00009300
> FS =0000 00000000 0000ffff 00009300
> GS =0000 00000000 0000ffff 00009300
> LDT=0000 00000000 0000ffff 00008200
> TR =0000 00000000 0000ffff 00008b00
> GDT=     00000000 0000ffff
> IDT=     00000000 0000ffff
> CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000
> DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
> DR3=0000000000000000
> DR6=00000000ffff0ff0 DR7=0000000000000400
> EFER=0000000000000000
> Code=90 90 eb c3 90 90 90 90 90 90 00 00 00 00 56 54 46 00 90 90 <eb> ac
> 90 90 90 90 90 90 90 90 90 90 90 90 00 00 00 00 00 00 00 00 00 00 00 00
> 00 00 00 00
> 
> Under 3.16 or earlier everything is working as expected (qemu starts
> normaly, guest works normaly)
> 
> Do you need the libvirt-xml file or any further info?
> Is this the right mailinglist, or is a kvm Mailinglist better?
> 
> Greetings
> Tobias