Re: [libvirt] [PATCH v2 0/4] Fix deadlock in nwfilter code

On 01/27/2014 12:18 PM, Daniel P. Berrange wrote: >Since we introduced fine grained locking into the QEMU driver so >that VM start can run in parallel, we appear to have caused a >race with the nwfilter code. In particular since we no longer >hold the global QEMU driver lock for the duration of VM startup >we have a lock ordering flaw. This results in deadlock when >nwfilter operations happen in parallel with VM startup. This >also affects the LXC driver. > >This patch series attempts to address the problem > > https://bugzilla.redhat.com/show_bug.cgi?id=929412 > >the removal of the windows thread impl isn't strictly required, >I just didn't want to waste time creating a read/write lock impl >for Windows threads. > >See also this callgraph > > http://berrange.fedorapeople.org/nwfilter.ps What tool do you use to render this? Ghostview only shows me part of the content.