Comment 21 for bug 1508767

7 day log rotate:

| hloeung@floette:~$ zgrep -h SEGV /var/log/syslog*
| Oct 28 14:46:34 floette kernel: [1351174.845829] init: rsyslog main process (2652) killed by SEGV signal

| hloeung@bagon:~$ zgrep -h SEGV /var/log/syslog*
| Nov 2 22:17:03 bagon kernel: [2401829.665556] init: neutron-plugin-openvswitch-agent main process (124418) killed by SEGV signal
| Nov 3 00:20:46 bagon kernel: [2409252.286349] init: nova-compute main process (125673) killed by SEGV signal
| Oct 26 11:51:25 bagon kernel: [1759496.565022] init: nova-compute main process (94922) killed by SEGV signal
| Oct 26 11:56:08 bagon kernel: [1759778.693294] init: neutron-plugin-openvswitch-agent main process (18574) killed by SEGV signal
| Oct 26 11:56:23 bagon kernel: [1759794.417232] init: neutron-plugin-openvswitch-agent main process (95171) killed by SEGV signal

| hloeung@gligar:~$ zgrep -h SEGV /var/log/syslog*
| Oct 30 18:32:56 gligar kernel: [745109.275184] init: neutron-plugin-openvswitch-agent main process (4705) killed by SEGV signal
| Oct 30 18:32:56 gligar kernel: [745109.776233] init: neutron-plugin-openvswitch-agent main process (88517) killed by SEGV signal
| Oct 30 18:32:57 gligar kernel: [745110.335622] init: neutron-plugin-openvswitch-agent main process (88527) killed by SEGV signal

| hloeung@patrat:~$ zgrep -h SEGV /var/log/syslog*
| Oct 27 08:18:29 patrat kernel: [508926.329315] init: neutron-plugin-openvswitch-agent main process (51113) killed by SEGV signal

I've disabled KSM as suggested. I'll try get wgrant or cjwatson to trigger a full rebuild and get some load on these compute nodes.