Comment 8 for bug 762007

Since a patch from an upstream kernel release v2.6.39-rc5-274-g609cfda (see https://bugzilla.kernel.org/show_bug.cgi?id=16691) was backported into the latest Ubuntu kernel v2.6.38-10.44, I have not experienced any "Received BA when not expected" issue by now. Now, with 802.11n support turned back on, my connection to the router is stable with a speed of circa. 130 MBit/s. What's more, all crashes of the second type I have reported above (Firmware crash 2) have gone completely. The overall system performance is back to normal again.

However, on some rare occasions crash of the first type (Firmware crash 1) still occurs. Having no noticeable effect on the system performance, it seems to be a pure microcode issue and should be reported upstream to microcode developers. An example is attached below.