It's not the first time we've had this kind of bug. Last time, I tried to think of a good unit test, but did not succeed.
On Tue, Sep 30, 2014 at 10:32:15AM -0700, Alex Wang wrote: > I can reproduce it, working on a fix, > > Thx for reporting~ > > On Tue, Sep 30, 2014 at 9:37 AM, Ben Pfaff <b...@nicira.com> wrote: > > > There's still a 100% CPU bug in ovs-vswitchd. Run "make sandbox", then > > run a second ovs-vswitchd inside the subshell (just run a bare > > "ovs-vswitchd" without any parameters). You get output like this: > > > > 2014-09-30T16:33:45Z|00001|ovs_numa|INFO|Discovered 8 CPU cores on > > NUMA node 0 > > 2014-09-30T16:33:45Z|00002|ovs_numa|INFO|Discovered 1 NUMA nodes and 8 > > CPU cores > > > > 2014-09-30T16:33:45Z|00003|reconnect|INFO|unix:/home/blp/nicira/ovs/tutorial/sandbox/db.sock: > > connecting... > > > > 2014-09-30T16:33:45Z|00004|reconnect|INFO|unix:/home/blp/nicira/ovs/tutorial/sandbox/db.sock: > > connected > > 2014-09-30T16:33:45Z|00005|bridge|ERR|another ovs-vswitchd process is > > running, disabling this process (pid 13812) until it goes away > > 2014-09-30T16:33:48Z|00006|poll_loop|INFO|wakeup due to 1-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00007|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00008|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00009|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00010|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00011|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00012|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00013|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00014|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > 2014-09-30T16:33:48Z|00015|poll_loop|INFO|wakeup due to 0-ms timeout > > at ../vswitchd/bridge.c:2723 (100% CPU usage) > > > > The cited line in bridge.c is: > > > > seq_wait(connectivity_seq_get(), connectivity_seqno); > > > > Thanks, > > > > Ben. > > _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
