Hi, On Fri, Jan 15, 2016 at 12:05:55AM +0100, Hannes Frederic Sowa wrote: > It was seen that defective configurations of openvswitch could overwrite > the STACK_END_MAGIC and cause a hard crash of the kernel because of too > many recursions within ovs. > > This problem arises due to the high stack usage of openvswitch. The rest > of the kernel is fine with the current limit of 10 (RECURSION_LIMIT). > Thus add an extra recursion limit counter for ovs_vport_receive until > parts of the stack usage is moved to percpu scratch space. > > Cc: Pravin Shelar <pshe...@ovn.org> > Signed-off-by: Hannes Frederic Sowa <han...@stressinduktion.org>
Thanks for this. Its looks like a clean solution to a problem that has been on my todo list for quite some time. Reviewed-by: Simon Horman <simon.hor...@netronome.com> _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
