Alex Wang pointed out that the RCU postpone thread can end up busy-waiting. The first two patches in this series fix the problem. The remaining two patches make it easier to track down threads that never quiesce.
Ben Pfaff (4): timeval: Preserve quiescence across time_poll(). ovs-thread: Quiesce in xpthread_barrier_wait(). ovs-thread: Make caller provide thread name when creating a thread. ovs-rcu: Log a helpful warning when ovsrcu_synchronize() stalls. lib/dpif-netdev.c | 6 +----- lib/netdev-dpdk.c | 4 +--- lib/ovs-rcu.c | 34 +++++++++++++++++++++++++++++++--- lib/ovs-rcu.h | 1 + lib/ovs-thread.c | 20 +++++++++++++++----- lib/ovs-thread.h | 2 +- lib/timeval.c | 14 +++++++++----- ofproto/ofproto-dpif-monitor.c | 3 +-- ofproto/ofproto-dpif-upcall.c | 26 ++++++++------------------ vswitchd/system-stats.c | 3 ++- 10 files changed, 70 insertions(+), 43 deletions(-) -- 1.7.10.4 _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
