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Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !
From: |
Aurelien Jarno |
Subject: |
Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc ! |
Date: |
Sat, 20 Oct 2007 16:49:41 +0200 |
User-agent: |
IceDove 1.5.0.10 (X11/20070328) |
Aurelien Jarno a écrit :
> Aurelien Jarno a écrit :
>
>> I have used QEMU CVS with a Debian Sid image. It basically works, I am
>> even able to login via SSH, but I have noticed two problems:
>>
>> - Some process hang, stay into "D" state and become unkillable. It seems
>> it can happen to all processes, but it is always reproducible with
>> uptime or top. I still don't know if it is a problem of the kernel or
>> if it comes from the emulation.
>
> This problem arise when using floating point instructions. It can be
> easily triggered by running the following testcase:
>
> #include <stdio.h>
>
> int main()
> {
> double a = 1.34;
> printf("%.2f", a);
> return 0;
> }
>
This is actually not enough to trigger the bug. The testcase works if
the bug has already been trigger in another process before, for example
uptime.
--
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
`. `' address@hidden | address@hidden
`- people.debian.org/~aurel32 | www.aurel32.net
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, (continued)
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Milton Miller, 2007/10/19
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Aurelien Jarno, 2007/10/19
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Aurelien Jarno, 2007/10/19
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Rob Landley, 2007/10/20
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, J. Mayer, 2007/10/20
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Rob Landley, 2007/10/21
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, J. Mayer, 2007/10/21
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, J. Mayer, 2007/10/21
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Rob Landley, 2007/10/21
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Aurelien Jarno, 2007/10/20
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !,
Aurelien Jarno <=
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Aurelien Jarno, 2007/10/20
- Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, J. Mayer, 2007/10/21
Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, Rob Landley, 2007/10/20
Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !, J. Mayer, 2007/10/20