On 04/30/2013 11:05 AM, Ben Greear wrote: > On 04/28/2013 08:05 AM, Ben Greear wrote: >> On 04/27/2013 01:58 AM, Felix Fietkau wrote: >>> On 2013-04-27 1:46 AM, Ben Greear wrote: >>>> Was running around 200 stations against a VAP on this system, and >>>> then changed the channel from 1 to 36 (by restarting hostapd with new >>>> config). >>>> >>>> Looks like null-pointer de-ref... Anyone seen anything similar? >>> I've never seen this one. Please use gdb to figure out the source code >>> line that the NULL pointer deref happens in. >>> As for the 'keycache entry 228 out of range' stuff, I'm going to send a >>> patch for that now. >> >> Thanks. >> >> I'm away from the office for a bit, but will build a debugging kernel >> and crank on this early next week. > > Ok, this is against a modified 3.9.0 tree. My patches are here: > > http://dmz2.candelatech.com/git/gitweb.cgi?p=linux-3.9.dev.y/.git;a=summary > > I'm going to try reproducing against upstream 3.9.0 (using a smaller number of > stations since upstream doesn't have needed optimizations to make it work on > my hardware...)
With the wpa_supplicant optimizations I posted yesterday, I can reproduce the crash on a standard 3.9.0 kernel with the regdomain patch AND the "mac80211: Add per-sdata station hash, and sdata hash." https://patchwork.kernel.org/patch/2482351/ I was not able to reproduce this without the hash optimization patch, so either it's buggy, or it just makes things a lot faster and that triggers bugs in ath9k more easily..... Thanks, Ben -- Ben Greear <gree...@candelatech.com> Candela Technologies Inc http://www.candelatech.com _______________________________________________ ath9k-devel mailing list ath9k-devel@lists.ath9k.org https://lists.ath9k.org/mailman/listinfo/ath9k-devel
