Created attachment 1221652 [details]
log file for ovs-vswitchd

Description of problem:

When starting testpmd in a VM, one of the threads from ovs-vswitchd segfaults with:

[ 4535.253497] vhost_thread2[4613]: segfault at 18 ip 00007fe9e07a9af0 sp 00007fe9d1ee0638 error 4 in ovs-vswitchd[7fe9e06c9000+319000]


Version-Release number of selected component (if applicable):
RHEL7.3
openvswitch-2.5.0-14.git20160727.el7fdp

How reproducible:


Steps to Reproduce:
Configure ovs with the following:

ovsbr0:
dpdk0
vhost-user-1

ovsbr1:
dpdk1
vhostuser-2
vhostuser-3

Create 5 PMD threads, 1 for each port.
create vm1 with 2 vhostuser ports, vhost-user1 and vhost-user-2
create vm2 with 1 vhostuser ports, vhost-user-3
start both VMs
on vm2, bring up the interface with kernel driver (virtio)
on vm1, run testpmd on the two vhostuser interfaces

Actual results:

Once vm1 starts testpmd, the segfault will happen in the host.  If vm2 is not started, the segfault will not happen.

Expected results:

There should be no segfault

Additional info: