linux-kernel - Re: iwlagn completely unusable with some AP since 2.6.31

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Message-ID: <20100614162048.GA28894@infradead.org>
Date:	Mon, 14 Jun 2010 12:20:48 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Norbert Preining <preining@...ic.at>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: iwlagn completely unusable with some AP since 2.6.31

On Tue, Jun 15, 2010 at 01:09:10AM +0900, Norbert Preining wrote:
> Dear all,
> 
> (please cc)
> 
> Since AFAIR 2.6.32-rc the iwlagn driver seems to be completely hosed
> with some AP. Permanently dropping connections, hanging, BUGing.
> Unfortunately the only reply I get from iwl maintainers is "do git bisect"
> which is a bit a pain with someting that is not stable reproducible.

I see the same issue, and I even tried the git bisect, but due to
various issues in early boot / ACPI code in that merge window it's
impossible to finish it.  The ugly workaround for me is to always keep
a ping running in the background, which keeps it from dropping the
connection.  Fortunately the BUGs only happen very rarely for me (and
unfortunately I'm not able to capture them, but I suspect it's iwlagn)

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