[ovs-dev] kernel oops while doing OVN testing

[Russell Bryant]

On 04/20/2015 10:26 AM, Russell Bryant wrote:
> On 04/20/2015 04:35 AM, Thomas Graf wrote:
>> On 04/17/15 at 01:56pm, Russell Bryant wrote:
>>> This is the openvswitch module that came with the following Fedora
>>> kernel: 3.19.1-201.fc21.x86_64
>>>
>>> I can easily reproduce this.  It happens when running devstack multiple
>>> times to stand up OpenStack + OVS + OVN + OpenStack Neutron OVN
>>> integration.  So far, it seems to consistently break the 2nd time I run
>>> devstack after a reboot.
>>>
>>> The relevant devstack code is here:
>>>
>>> http://git.openstack.org/cgit/stackforge/networking-ovn/tree/devstack/plugin.sh
>>>
>>> In particular, take a look at init_ovn, install_ovn, start_ovn, and
>>> stop_ovn.
>>>
>>> When the VM gets in a bad state, ovs-vswitchd exits fairly quickly on
>>> startup when the oops occurs.  If I follow it with gdb, I get:
>>
>> Maybe try with 4.0.0-1.fc22.x86_64 to see if it's already fixed.
>>
> 
> Good idea, thanks.  Also, someone suggested that this would fix it:
> 
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=7b4577a9da3702049650f7095506e9afd9f68849

I confirmed that upgrading to 4.0.0-1.fc22.x86_64 does fix it.

-- 
Russell Bryant