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Date: Sat, 20 Oct 2007 16:23:14 +0200
From: Aurelien Jarno <aurelien@aurel32.net>
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Subject: Re: [Qemu-devel] I got a kernel booted under qemu-system-ppc !
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To: qemu-devel@nongnu.org
Cc: Jocelyn Mayer <l_indien@magic.fr>, Milton Miller <miltonm@bga.com>

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;
}

-- 
  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net