[Bug 1466978] [NEW] Openstack + ovs 1.4.6-0ubuntu1.12.04.4 + kernel 3.2.0-70 and newer crash on first gre traffic

[Dave Chiluk]

Public bug reported:

Openstack + ovs 1.4.6-0ubuntu1.12.04.4 + kernel 3.2.0-70 and newer crash
on first gre traffic

[Impact]

 * Openstack + ovs 1.4.6-0ubuntu1.12.04.4 + kernel 3.2.0-70 and newer crash on first gre traffic
 * Kernels newer than 3.2.0-70 are not able to be used with the openvswitch module built using 1.4.6-0ubuntu1.12.04.4 

[Test Case]

 1. Deploy grizzly openstack with Openvswitch for neutron.
 2. Upgrade kernel on compute host to greater than 3.2.0-69
 3. Deploy and boot VM.
 4. Associate IP with VM
 5. Ping VM
 6. Watch compute host crash.

[Regression Potential]

 * Few character change
 * This has been broken since release of 3.2.0-70
 * Users should have already migrated Openstack clouds off of Grizzle + precise.

[Other Info]
 
 * 3.13 kernel ships with ovs module included in the kernel.

** Affects: openvswitch (Ubuntu)
     Importance: Undecided
     Assignee: Dave Chiluk (chiluk)
         Status: New


** Tags: cts sts

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https://bugs.launchpad.net/bugs/1466978

Title:
  Openstack + ovs 1.4.6-0ubuntu1.12.04.4 + kernel 3.2.0-70 and newer
  crash on first gre traffic

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