linux-kernel - Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

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Date:	Tue, 26 May 2009 14:45:46 +0200
From:	Ivo van Doorn <ivdoorn@...il.com>
To:	alejandro.riveira@...il.com
Cc:	linux-wireless <linux-wireless@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linville@...driver.com, Greg KH <greg@...ah.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

Hi,

> > > What causes the regression then?
> > 
> > No idea. Apparently the invalid bitmask is accepted by the device under
> > certain conditions. Which would be very odd.... But since dozens
> > of people reported this problem for 2.6.27 as well, it probably depends
> > heavily on the actual chipset revision or configuration.
> > 
> > > Anyway For the script to work what config options do I need? debugfs?
> > > Anything else ?
> > 
> > CONFIG_DEBUGFS
> > CONFIG_MAC80211_DEBUGFS
> > CONFIG_RT2X00_LIB_DEBUGFS
> > 
> > And thats it, make sure debugfs is mounted and just run the script.
> > The script will detect mount location and rt2x00 interface.
> 
> 
> That's what I get[1] with the good kernel but I think the script failed
> because I got a very short output

Ok, that means it is the wrong script, try the other one from the download
location you previously refered to. I changed the API some time ago, and
am not sure which stable release that change will be in.

> [1] Had to install gawk mawk does not have --posix. 

Right, that was still something I needed to work on. :)

Ivo
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