linux-kernel - Re: Mark IPW2100 as BROKEN: Fatal interrupt. Scheduling firmware restart.

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Message-ID: <20080921224506.GB24461@srcf.ucam.org>
Date:	Sun, 21 Sep 2008 23:45:06 +0100
From:	Matthew Garrett <mjg59@...f.ucam.org>
To:	Marcel Holtmann <holtmann@...ux.intel.com>
Cc:	Evgeniy Polyakov <johnpol@....mipt.ru>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, ipw2100-devel@...ts.sourceforge.net,
	linux-wireless@...r.kernel.org, yi.zhu@...el.com,
	reinette.chatre@...el.com, jgarzik@...ox.com,
	linville@...driver.com, davem@...emloft.net
Subject: Re: Mark IPW2100 as BROKEN: Fatal interrupt. Scheduling firmware restart.

On Sun, Sep 21, 2008 at 09:35:31PM +0200, Marcel Holtmann wrote:

> I don't know if it is for this bug or a different one, but Matthew
> Garrett seem to have some pending patches. At least that is what he told
> me at PlumbersConf. Lets see if these patches do help. And please follow
> up with Arjan's suggestion and put a WARN_ON in the upstream code
> instead of waving CONFIG_BROKEN around.

The fix I had for this was actually for ipw2200, but it ought to be 
applicable for 2100 as well. The ideal fix is probably to ensure that 
ipw*_down D3s the card and *_up D0s it, which brings enhanced runtime 
power saving and also has the nice side effect of actually resetting the 
damned POS in error cases.

-- 
Matthew Garrett | mjg59@...f.ucam.org
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