linux-kernel - Re: REGRESSION for RT2561/RT61 in 2.6.32

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Message-ID: <Pine.LNX.4.44L0.0912090940030.4120-100000@iolanthe.rowland.org>
Date:	Wed, 9 Dec 2009 09:41:07 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Gertjan van Wingerde <gwingerde@...il.com>
cc:	Ivo van Doorn <IvDoorn@...il.com>,
	<linux-wireless@...r.kernel.org>,
	Kernel development list <linux-kernel@...r.kernel.org>
Subject: Re: REGRESSION for RT2561/RT61 in 2.6.32

On Tue, 8 Dec 2009, Gertjan van Wingerde wrote:

> Hmm, the stack overrun seems to be generated as part of the
> Alt-SysRq-* handling, not of any rt61pci handling.
> 
> I noticed in the Alt-SysRq-T output that powersaving is enabled. We've
> seen some strange behaviour on this, so could you disable that with:
> 
> iwconfig wlan0 power off
> 
> or run a kernel in which CONFIG_CFG80211_DEFAULT_PS is disabled.
> 
> Maybe that will fix the problem we are seeing?

It did indeed!  Thank you very much.  If you need a testbed to figure 
out what's wrong with the power-saving code, just ask.

Alan Stern

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