Re: [Qemu-devel] Knoppix results

[Fabrice Bellard <fabrice.bellard@free.fr>]

Renzo Davoli wrote:
>>After a couple of tries, I got the disk image ready and partitioned.  Whenever 
>>cfdisk hung QEMU, I had to kill the emulator and restart the process. I found 
>>that the changes that were successfully written to the disk image were good, 
>>so I was able to make forward progress.
> 
> 
> I have installed a complete debian.
> 
> I have had the very same problem: sometimes qemu freezes.
> There is no apparent cause-effect relationship, qemu freezed at random 
> stages of the installation process any time the procedure was restarted.
> I succeeded in installing the debian but after several attempts.
> 
> It seems to be a timing fault on the simulated ide.
> When it freezes, it stops into a low level infinite loop: neither
> clicking on the window to grab the mouse nor ctrl-c on the calling
> terminal produce effects.

It seems there is a problem in TB invalidation during asynchronous 
interrupts (I have already seen random infinite loops in 
tb_reset_jump_recursive()). I have no idea of the exact cause of the 
problem.

Fabrice.