On Tue, 28 Jul 2015 09:07:00 +0200 Cornelia Huck <cornelia.h...@de.ibm.com> wrote:
> On Mon, 27 Jul 2015 17:33:37 +0100 > Stefan Hajnoczi <stefa...@redhat.com> 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 <cornelia.h...@de.ibm.com> Uh-oh, spoke too soon. It starts, but when I try a virsh managedsave, I get qemu-system-s390x: /data/git/yyy/qemu/async.c:242: aio_ctx_finalize: Assertion `ctx->first_bh->deleted' failed.
