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Re: [Qemu-devel] (i386) TCG is broken in 1.5-rc0 with guest kernel 3.2?

From: Richard Henderson
Subject: Re: [Qemu-devel] (i386) TCG is broken in 1.5-rc0 with guest kernel 3.2?
Date: Thu, 09 May 2013 09:43:20 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130402 Thunderbird/17.0.5

On 05/08/2013 02:03 AM, Michael Tokarev wrote:
> I just tried 1.5-rc0 (32bit x86 userspace), and guest kernel
>> crashes in an interesting way right at init time.
>>  qemu-system-x86_64 -net none -kernel /boot/vmlinuz-3.2-amd64 -append 
>> console=ttyS0 -serial file:serial

Irritatingly, this works for me, with the current fedora 18 kernel,

x86_64-softmmu/qemu-system-x86_64: ELF 32-bit LSB shared object, Intel 80386,
version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32,
BuildID[sha1]=0x3286b0bfb3272b9b3004abe8d0c306f12470d77d, not stripped

./x86_64-softmmu/qemu-system-x86_64 -net none -kernel /boot/vmlinuz
3.8.11-200.fc18.x86_64 -append console=ttyS0 -serial stdio

Which makes it all the way until it panics for lack of root filesystem.

Hopefully this is the problem fixed by Aurelien's tcg/optimize.c patch today
(not yet applied to qemu head)?


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