Re: [Qemu-devel] [PATCH for-2.4 0/2] AioContext: fix deadlock after aio_context_acquire() race

[Cornelia Huck]

On Mon, 27 Jul 2015 17:33:37 +0100
Stefan Hajnoczi <address@hidden> wrote:

> See Patch 2 for details on the deadlock after two aio_context_acquire() calls
> race.  This caused dataplane to hang on startup.
> 
> Patch 1 is a memory leak fix for AioContext that's needed by Patch 2.
> 
> Stefan Hajnoczi (2):
>   AioContext: avoid leaking BHs on cleanup
>   AioContext: force event loop iteration using BH
> 
>  async.c             | 29 +++++++++++++++++++++++++++--
>  include/block/aio.h |  3 +++
>  2 files changed, 30 insertions(+), 2 deletions(-)
> 

Just gave this a try: The stripped-down guest that hangs during startup
on master is working fine with these patches applied, and my full setup
works as well.

So,

Tested-by: Cornelia Huck <address@hidden>