[PATCH] tests: add a test for mesh gate forwarding

Bob Copeland me at bobcopeland.com
Sat Mar 5 18:07:32 PST 2016

On Sat, Mar 05, 2016 at 10:12:33PM +0200, Jouni Malinen wrote:
> On Sat, Mar 05, 2016 at 10:05:05PM +0200, Jouni Malinen wrote:
> > So something is corrupting memory there..
> Or well.. It's a call to a mesh function after vif type has changed:
> [    8.195793] JKM:sdata->name='wlan2' vif.type=7
> [   11.370760] IPv6: ADDRCONF(NETDEV_UP): wlan2: link is not ready
> [   11.400032] JKM:mesh_path_send_to_gates:tbl=          (null)
> [   11.403328] JKM:sdata->name='wlan2' vif.type=2
> Did something forgot to cancel mesh_path_timer() calls?

Yeah, this is it: we don't cancel it until call_rcu() calls
mesh_path_reclaim(), which is much too late now that the hashtable is part
of the sdata->u.mesh.  Although I guess it was a bug before that we may
have tried to send frames to gates after a mesh device was gone...

Bob Copeland %% http://bobcopeland.com/

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