[ath9k-devel] ath9k causes lockups since kernel 2.6.35

[Tony Houghton <h@realh.co.uk>]

On Mon, 21 Mar 2011 20:20:23 +0530
Mohammed Shafi <shafi.wireless@gmail.com> wrote:

> I got a compaq machine, i will try to reproduce the issue now, most
> probable i will hit it.

I hope so.

I've just tested the fix-kernel-panic.patch you sent. I applied it to
compat-wireless-2011-03-20 built against Debian kernel 2.6.38-1-686. As
you thought, it didn't cure the crashing. I've got another netconsole
log, but I don't think it will help because no new lines appeared
between disconnecting the wireless and the crash (possibly the last one
or two did, but I think they were probably there before).

The behaviour with the mains power disconnected seems quite consistent
too. I can then freely disconnect/disable wireless etc except that if I
suspend it crashes on resume (with no netconsole message). I confirmed
that was ath9k and not something else by issuing rmmod before
suspending, and then it resumed successfully. So at least now I think I
can make the machine usable with an up-to-date kernel as long as I
remember to unplug then rmmod before suspending or shutting down.

I also noticed that when I loaded the module while on battery power and
plugged the power in afterwards it behaved the same as if it was still
on battery power, but I've only done that once so I don't know if that's
consistent.

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