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.
>
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