From mboxrd@z Thu Jan  1 00:00:00 1970
From: Gleb Natapov <gleb@redhat.com>
Subject: Re: Unknown KVM internal error on 3.2.1
Date: Wed, 7 Mar 2012 13:00:27 +0200
Message-ID: <20120307110027.GG2521@redhat.com>
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 <4F573B4C.9060805@redhat.com>
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Cc: Doug Goldstein <cardoe@gentoo.org>,
	KVM mailing list <kvm@vger.kernel.org>
To: Avi Kivity <avi@redhat.com>
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On Wed, Mar 07, 2012 at 12:41:16PM +0200, Avi Kivity wrote:
> On 02/25/2012 05:35 PM, Doug Goldstein wrote:
> > Hello, I'm seeing the following failure when running on 3.2.1:
> 
> <snip funky qemu commandline>
> 
> > KVM internal error. Suberror: 1
> > emulation failure
> > EAX=8004003b EBX=38d54633 ECX=c0460a7e EDX=8005003b
> > ESI=e49329a8 EDI=f7c98d60 EBP=00000286 ESP=f7fecf68
> > EIP=f91d1778 EFL=00000282 [--S----] CPL=0 II=0 A20=1 SMM=0 HLT=0
> > ES =007b 00000000 ffffffff 00c0f300 DPL=3 DS   [-WA]
> > CS =0060 00000000 ffffffff 00c09b00 DPL=0 CS32 [-RA]
> > SS =0068 00000000 ffffffff 00c09300 DPL=0 DS   [-WA]
> > DS =007b 00000000 ffffffff 00c0f300 DPL=3 DS   [-WA]
> > FS =0000 00000000 ffffffff 00000000
> > GS =0000 b7f526c0 ffffffff 00000000
> > LDT=0088 c074a020 00000027 00008200 DPL=0 LDT
> > TR =0080 c180a7c4 00002073 00008b00 DPL=0 TSS32-busy
> > GDT=     f7c9f000 000000ff
> > IDT=     c06fa000 000007ff
> > CR0=8005003b CR2=0046b044 CR3=3100d000 CR4=000006d0
> > DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000
> > DR3=0000000000000000
> > DR6=00000000ffff0ff0 DR7=0000000000000400
> > EFER=0000000000000000
> > Code=?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? <??>
> > ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ??
> > ?? ?? ?? ?? ?? ??
> 
> What are all these ?? doing here?  Usually they indicate the bad code,
> but here they don't, this is strange.
> 
I think it tries to execute code from mmio.

> Please issue the qemu monitor command
> 
>   x/20i 0xf91d1778
> 
> on the guest that failed (after restarting it).  The value comes from
> the EIP register in the dump above, so you can use it for other guests.
> 
> 
> -- 
> error compiling committee.c: too many arguments to function
> 
> --
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--
			Gleb.