vrouter agent core on mainline build 3054

[Sudheendra Rao]

vrouter agent core is seen while running sanity on mainline build 3054 ubuntu-14-04 mitaka.

The core is present on target: nodeh8 (under /var/crashes) and the node is locked, please use the setup if required.

The back trace is:
 gdb /usr/bin/contrail-vrouter-agent /var/crashes/core.contrail-vroute.1652.nodeh8.1491627029
(gdb) bt
#0 0x00007f85c8cf1c37 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x00007f85c8cf5028 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x00007f85c8ceabf6 in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x00007f85c8ceaca2 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#4 0x0000000000bee672 in VrfEntry::DeleteTimeout() ()
#5 0x00000000013f38d9 in Timer::TimerTask::Run() ()
#6 0x00000000013ec3ff in TaskImpl::execute() ()
#7 0x00007f85c98c0b3a in ?? () from /usr/lib/libtbb.so.2
#8 0x00007f85c98bc816 in ?? () from /usr/lib/libtbb.so.2
#9 0x00007f85c98bbf4b in ?? () from /usr/lib/libtbb.so.2
#10 0x00007f85c98b80ff in ?? () from /usr/lib/libtbb.so.2
#11 0x00007f85c98b82f9 in ?? () from /usr/lib/libtbb.so.2
#12 0x00007f85c9adc184 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#13 0x00007f85c8db537d in clone () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) quit

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/30883
Submitter: Manish Singh (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/30883
Committed: http://github.com/Juniper/contrail-controller/commit/576a857032cf50c8a134e247f69de0ef99fbbce8
Submitter: Zuul (<email address hidden>)
Branch: master

commit 576a857032cf50c8a134e247f69de0ef99fbbce8
Author: Manish <email address hidden>
Date: Mon May 1 00:40:57 2017 +0530

VRF deletetimeout

Problem:
Fix for bug#1666139 broke code where mpls label change handling for fmg.
Old fabric label can not be reliably picked from fmg path. It can be only picked
from multicast master path. Solution should take care of this point along with
not breaking 1666139.

Solution:
Pick up old fmg label as done prior to fix of 1666139, but check for reserved
fmg label to identify if multicast path is having evpn or fmg label.

Change-Id: I056b61867498f6ec83c11babc2b6aaabcc09a3e9
Closes-bug: #1681083