linux-kernel - Re: BUG at kvm_main.c: invalid opcode 0000 [#1] SMP

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Message-ID: <4B3B201B.1090100@redhat.com>
Date:	Wed, 30 Dec 2009 11:40:43 +0200
From:	Avi Kivity <avi@...hat.com>
To:	Ozan Çağlayan <ozan@...dus.org.tr>
CC:	linux-kernel <linux-kernel@...r.kernel.org>, kvm@...r.kernel.org
Subject: Re: BUG at kvm_main.c: invalid opcode 0000 [#1] SMP

On 12/30/2009 11:08 AM, Ozan Çağlayan wrote:
> Hi,
>
> kvm-kmod 2.6.32 compiled and loaded against 2.6.30.9 gives the following trace after modprobe:
>
> [   36.130555] Call Trace:
> [   36.130857]  [<f88d339e>] ? vmx_init+0x1c5/0x20a [kvm_intel]
> [   36.131585]  [<f88d31d9>] ? vmx_init+0x0/0x20a [kvm_intel]
> [   36.132290]  [<c0101139>] ? do_one_initcall+0x4c/0x13a
> [   36.132951]  [<c01531f9>] ? sys_init_module+0x87/0x18b
> [   36.133613]  [<c01031d4>] ? sysenter_do_call+0x12/0x28
> [   36.134272] Code: c3 55 31 c0 89 e5 c7 42 40 f8 6c 86 f8 5d c3 55 31 c0 89 e5 c7 42 40 7c 6c 86 f8 5d c3 80 3d 1c 82 86 f8 00 55 89 e5 74 02 eb fe<0f>  0b eb fe 55 b9 07 00 00 00 89 e5 57 89 c7 31 c0 f3 ab 5f 5d
> [   36.138053] EIP: [<f88431da>] kvm_handle_fault_on_reboot+0xe/0x12 [kvm] SS:ESP 0068:f6723f60
> [   36.139168] ---[ end trace 6acc003c8ce73117 ]---
>
>
> It seems that it doesn't affect the kvm performance/functioning. Here's the processor information:
>    

Can you try the full 2.6.32.y kernel (without kmod-kvm)?  If it works, 
it's likely a kmod-kvm problem.  If it doesn't, it's probably a cpu 
setup problem.

Please post an objdump of vmx.o function vmx_init (might be renamed to 
init_module).

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

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