Just for reference, same problem on un-modified 2.6.35-rc3+ (pulled last night) The crash below is from reproducing it with your patch included. [root@atom ~]# ls anaconda-ks.cfg Documents Music Public Videos Desktop Downloads Pictures Templates [root@atom ~]# echo add > /debug/ath9k/phy0/wiphy Jul 3 10:55:24 atom kernel: phy1: Selected rate control algorithm 'ath9k_rate_control' [root@atom ~]# Jul 3 10:55:25 atom kernel: ADDRCONF(NETDEV_UP): wlan1: link is not ready [root@atom ~]# rmmod ath9k BUG: unable to handle kernel NULL pointer dereference at 000000a4 IP: [<f8d65fd1>] ath9k_hw_intrpend+0x6/0x49 [ath9k_hw] *pde = 00000000 Oops: 0000 [#1] SMP last sysfs file: /sys/devices/pci0000:00/0000:00:1e.0/0000:05:03.0/class Modules linked in: (It reboots before printing anything else to console). 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