The tx pending queues doesn't seem to be limitted, allowing run-away memory usage when something like pktgen is sending packets faster than the system can actually send them. [root@ct520-2011 ~]# cat /debug/ieee80211/wiphy0/queues 00: 0x00000000/0 01: 0x00000000/0 02: 0x00000001/40076 03: 0x00000000/0 [root@ct520-2011 ~]# cat /debug/ieee80211/wiphy0/queues 00: 0x00000000/0 01: 0x00000000/0 02: 0x00000001/52649 03: 0x00000000/0 [root@ct520-2011 ~]# cat /debug/ieee80211/wiphy0/queues 00: 0x00000000/0 01: 0x00000000/0 02: 0x00000001/107939 03: 0x00000000/0 I think this is what is causing my OOM issues when sending with (my hacked version of) pktgen. Shouldn't there be an upper limit on the number of pending frames that mac80211 will queue? Thanks, Ben -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html