Re: [Xen-devel] [PATCH][QEMU] Make active-timers thread-safe

["Daniel P. Berrange" <berrange@xxxxxxxxxx>]

On Mon, Aug 27, 2007 at 02:58:26PM -0400, Ben Guthro wrote:
> Protect active_timers[] lists with mutexes so timers can be safely used 
> from different threads.

What code in QEMU is actually still using threads ? There used to be a Xen
specific patch to the IDE layer to perform DMA ops in threads, but that was
removed when xen-unstable synced with QEMU 0.9.0. Not aware of anything
else using threads in the QEMU device model - its pretty dangerous because
QEMU's internal data structures basically all assume single-threaded access.

Regards,
Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=| 

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel