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Re: [Qemu-devel] kqemu version 1.3.0pre5

From: Jens Axboe
Subject: Re: [Qemu-devel] kqemu version 1.3.0pre5
Date: Tue, 28 Mar 2006 20:40:44 +0200

On Tue, Mar 28 2006, Ed Swierk wrote:
> I'm still getting a kernel panic running a Linux guest kernel with
> -kernel-qemu. I'm using kqemu-1.3.0pre5 and
> qemu-snapshot-2006-03-27_23.
> The guest kernel is a precompiled Fedora Core 4 kernel, version
> 2.6.14-1.1656_FC4. It works fine with kqemu in non-kernel-kqemu mode.
> Any hints for how to track this problem down?


> monitor/mwait feature present.
> using mwait in idle threads.


> invalid operand: 0000 [#1]
> Modules linked in:
> CPU:    0
> EIP:    0060:[<c0101147>]    Not tainted VLI
> EFLAGS: 00010246   (2.6.14-1.1656_FC4)
> EIP is at mwait_idle+0x2f/0x41

I don't think qemu supports PNI, which includes the monitor/mwait
additions. I wonder why Linux detects that. You can probably get around
it for now by either passing idle=poll as a boot parameter, or compile
your kernel for plain i586 for instance.

Jens Axboe

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