[ovs-build] Still Failing: openvswitch/ovs#7184 (branch-2.10 - 9006428)

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Mon Oct 15 19:08:52 UTC 2018


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

Build: #7184
Status: Still Failing

Duration: 52 mins and 24 secs
Commit: 9006428 (branch-2.10)
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/e997076020d8...9006428ea5f3

View the full build log and details: https://travis-ci.org/openvswitch/ovs/builds/441787367?utm_medium=notification&utm_source=email

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