Subject: iwlagn and many firmware restarts with Fedora kernel
From: Marcel Holtmann <marcel@holtmann.org>
To: linux-wireless@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Date: Mon, 19 Jul 2010 11:43:54 -0700
Message-ID: <1279565034.4572.36.camel@localhost.localdomain>
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Sender: linux-wireless-owner@vger.kernel.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