[ovs-build] Failed: openvswitch/ovs#7183 (master - efc93e6)

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Mon Oct 15 18:22:52 UTC 2018


Build Update for openvswitch/ovs
-------------------------------------

Build: #7183
Status: Failed

Duration: 35 mins and 6 secs
Commit: efc93e6 (master)
Author: Ben Pfaff
Message: ofproto-dpif-xlate: Avoid deadlock on multicast snooping recursion.

Until now, OVS did multicast snooping outputs holding the read-lock on
the mcast_snooping object.  This could recurse via a patch port to try to
take the write-lock on the same object, which deadlocked.  This patch fixes
the problem, by releasing the read-lock before doing any outputs.

It would probably be better to use RCU for mcast_snooping.  That would be
a bigger patch and less suitable for backporting.

Reported-by: Sameh Elsharkawy
Reported-at: https://github.com/openvswitch/ovs-issues/issues/153
Signed-off-by: Ben Pfaff <blp at ovn.org>

View the changeset: https://github.com/openvswitch/ovs/compare/c92ccb42bdb5...efc93e661391

View the full build log and details: https://travis-ci.org/openvswitch/ovs/builds/441785271?utm_medium=notification&utm_source=email

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