On Fri October 8 2010 13:05:51 Ben Greear wrote:
> On 10/07/2010 08:12 PM, Jonathan Guerin wrote:
> > On Thu, Oct 7, 2010 at 4:22 PM, Bruno Randolf<b...@einfach.org>  wrote:
> >> On Thu October 7 2010 14:41:18 Jonathan Guerin wrote:
> >>>> I seem to be getting a kernel panic when creating an IBSS with the
> >>>> latest ath5k driver. I remember Bruno submitting patches recently
> >>>> which modifies the behaviour of timestamps in ath5k, so I was
> >>>> wondering if this was related.
> >> 
> >> did i? ;) i don't remember that.
> >> 
> >>> Correction, this is not when creating an IBSS, but when bringing up an
> >>> interface in monitor-mode.
> >> 
> >> hmm... i don't see that with current wireless-testing. how do you create
> >> your monitor interface?
> > 
> > iw dev wlan0 interface add mon0 type monitor
> > ifconfig mon0 up
> > 
> >> bruno
> > 
> > I've just tried the latest wireless-testing build (2.6.36-rc7) on two
> > different machines with different hardware configurations (but both
> > with ath5k). I get the same kernel panic, repeatable every time I
> > bring up a monitor mode interface (or not long after, as soon as it
> > sees traffic).
> > 
> > I reverted the kernels to 2.6.35 and this crash no longer happens. I'm
> > not sure if this is related to the 'rx memory clobbering' post, so I
> > haven't gone and tainted it. I'm happy to provide more data if
> > necessary.
> 
> The ath5k STA/AP virtualization patch went in as well.  Any chance you
> could bisect to see what patch causes the problem?

and, not to forget the multi queue stuff. this opens up a few possibilites for 
HW races, etc... i have been running it here for month, though, but only on 
single CPU systems.

bruno

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