iwlagn and many firmware restarts with Fedora kernel

[Marcel Holtmann <marcel@holtmann.org>]

Hi,

so during the last few weeks, I have seen a huge amount of firmware
restarts with my Intel 5350 card and Fedora 13 kernel (2.6.33.6-147).

iwlagn 0000:03:00.0: low ack count detected, restart firmware
iwlagn 0000:03:00.0: On demand firmware reload
iwlagn 0000:03:00.0: Stopping AGG while state not ON or starting
iwlagn 0000:03:00.0: queue number out of range: 0, must be 10 to 19

If this happens then I don't see it once, I normally see this 10-20
times and the connectivity is stalled until the cards comes back to
life. I have seen patches that should have fixed this symptom, but they
might be also send to -stable since this is a major hassle.

The time without connectivity is something around 4-5 minutes or longer
when this happens. Not really funny.

Regards

Marcel