I have not observed the issue. It is listed in the release notes in 6.1.2.4
56326 In some cases, your controller might unexpectedly reboot due to an OSPF module crash.
Workaround:
None.
All of our wireless VLANS and the gateways for those VLANS live on the controller. We then redistribute that back to the rest of our network using OSPF between the controller and the switch it is linked off of.