[ovs-discuss] Kernel Crash with OVS 1.4.6 and Linux 3.5

Chris J Arges chris.j.arges at canonical.com
Mon Jan 6 16:37:42 UTC 2014


Hi,
I've been trying to determine a fix for the 1.4.6 series of openvswitch
due to a bug when using a 3.5 series linux kernel with the ovs 1.4.6
dkms module.

The details on how to reproduce and backtrace are here:
https://bugs.launchpad.net/ubuntu/+source/openvswitch/+bug/1262692

Commit 703133de331a7a7df47f31fb9de51dc6f68a9de8 (ip: generate unique IP
identificator if local fragmentation is allowed) in the linux kernel if
reverted fixes the issue. Looking through the openvswitch code, the only
difference I suspect is if skb->local_df is changed.

The question is, is there a known OVS patch that addresses the changes
in the above kernel patch? I suspect
5ebaf571f9a3531d06eb52b62ac237ab7292f7b0 but it seemed to be a very
massive patch and perhaps not easily applied to the 1.4.6 series.

Thanks,
--chris j arges




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