Re: [Qemu-devel] QEMU refusing to die on FreeBSD host

[Juergen Lock]

On Mon, Apr 07, 2008 at 09:14:20PM +0200, Juergen Lock wrote:
> In article <address@hidden> you write:
> >Juergen Lock wrote:
> >> On Sun, Apr 06, 2008 at 12:55:39AM -0400, Jake Myers wrote:
> >>   
> >>> Hello,
> >>>
> >>> On FreeBSD 7-STABLE, qemu refuses to exit even after the window is 
> >>> closed. 
> >>> It is stuck so badly that even kill -9 fails to stop it. I looked in top 
> >>> to 
> >>> see what it was doing that would cause it to lock so badly:
> >>>
> >>> PID USERNAME    THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
> >>> 34859 root          1  -8   20   433M   416M devdrn   9:49  0.00% qemu
> >>>
> >>> I believe the problem is that qemu for some reason refuses to stop trying 
> >>> to use the kqemu device.
> >>>
> >>> I am running the latest qemu (0.9.1). I can provide a backtrace on 
> >>> request 
> >>> (I'm really busy right now with other things, so I didn't have time to 
> >>> attach one).
> >>>     
> >>
> >> Yeah this looks like its the same FreeBSD 7.x/SMP issue that I already
> >> got reports of (refcount problem, similar to what has already been fixed
> >> once, only this time it seems to be a race...)
> >>
> >>  If it is, you should be able to work around it by using an uniprocessor
> >> host kernel until a fix is known.
> >>
> >>  Sorry...
> >>    Juergen
> >>
> >>
> >>
> >>   
> >I disabled SMP in my kernel, rebuilt the kqemu module, and tried to run 
> >it again. The same issue occurs.
> 
> Hmm okay, then its not an SMP issue, thanks for the information!
> [...]

OK, I just committed a fix, please try updating your kqemu port and
tell me if it works for you then.

 Thanx,
        Juergen