Comment 81 for bug 276990

The thing is, that the backports installed correctly. I rebooted the system several times, so there's no way old module is running. I noticed very drastic decrease frequency of the crashes. This is the first crash since then.
But I'lll do your recommendation just in case.

I think that my bug #284733 perhaps wasn't duplicate of this one. Few of the crashes earlier I experienced while trying to associate/deassociate to/from an AP. I think it might be another bug which existed in previous version.
(this crash happened at home and I'm not using 802.11n here) actually I doubt that the card had enough time to do any communication at that time, since it happened when I wasn't connected to any AP, and I was turning the wireless in network manager.