From: Flavio Leitner <f...@redhat.com> Date: Thu, 27 Mar 2014 11:05:34 -0300
> There are two problematic situations. > > A deadlock can happen when is_percpu is false because it can get > interrupted while holding the spinlock. Then it executes > ovs_flow_stats_update() in softirq context which tries to get > the same lock. > > The second sitation is that when is_percpu is true, the code > correctly disables BH but only for the local CPU, so the > following can happen when locking the remote CPU without > disabling BH: ... > Signed-off-by: Flavio Leitner <f...@redhat.com> > --- > v2: better commit message Ok, I just saw Jesse's request that I apply this directly, so I have done so. Thanks. _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
