linux-kernel - Re: [2.6.21-rc5-git1][KVM] exception on start VM

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Date:	Fri, 30 Mar 2007 09:27:04 +0300
From:	Avi Kivity <avi@...ranet.com>
To:	Bill Davidsen <davidsen@...idon.tmr.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [2.6.21-rc5-git1][KVM] exception on start VM

Bill Davidsen wrote:
> Starting a VM for Win98SE:
>
> posidon:root> /usr/local/kvm-15/bin/qemu -m 128 -hda Win98SE-2.kvm 
> exception 13 (0)
> rax 00000000f000ff53 rbx 0000000000000000 rcx 000000000000005a rdx 000000000000000e
> rsi 00000000001100c4 rdi 000000000002a002 rsp 0000000000086650 rbp 000000000000667a
> r8  0000000000000000 r9  0000000000000000 r10 0000000000000000 r11 0000000000000000
> r12 0000000000000000 r13 0000000000000000 r14 0000000000000000 r15 0000000000000000
> rip 000000000000d350 rflags 00237206
> cs fff8 (000fff80/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
> ds 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
> es 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
> ss 103f (000103f0/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
> fs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
> gs 0000 (00000000/0000ffff p 1 dpl 3 db 0 s 1 type 3 l 0 g 0 avl 0)
> tr 0000 (08850000/00002088 p 1 dpl 0 db 0 s 0 type b l 0 g 0 avl 0)
> ldt 0000 (00000000/0000ffff p 1 dpl 0 db 0 s 0 type 2 l 0 g 0 avl 0)
> gdt 87244/2f
> idt 0/3ff
> cr0 60000010 cr2 0 cr3 0 cr4 0 cr8 0 efer 0
> Aborted
> posidon:root>
>
>
> Hope that's useful, I was looking at nbd issues and just tried for 
> curiosity.
>
>   

Known issue.  It will be a while before we can support the '95 family on 
Intel as it makes heavy use of real mode.

Please copy kvm-devel@...ts.sourceforge.net on kvm issues, a per 
MAINTAINERS.


-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

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