Re: [PATCH 2/2] qemu: fix one more race on undefining and create

[1] closes gap in virDomainObjListRemove so that concurrent thread can not step in and obtain the domain while domain is temporary unlocked. But there is another gap exist: thread B - executes create API thread C - executes undefine API - thread A executes some job on domain - threads B and C obtains domain from list and wait for job condition - thread A finishes its job and C grabs job condition, removes domain from list and finishes - thread B grabs job condition and start the domain, unfortunately is not in the list already [1] commit c7d1c139ca3402e875002753952e80ce8054374e Author: Martin Kletzander <mkletzan(a)redhat.com&gt; Date: Thu Dec 11 11:14:08 2014 +0100 qemu: avoid rare race when undefining domain Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy(a)openvz.org&gt;