On Sun, 2008-12-28 at 12:32 -0500, Bob Copeland wrote:
quoted text
> Hi all,
> 
> Please comment on and test these changes, especially #2 and #3 which
> put a spinlock around reset() to prevent HW lockups of pcie devices
> when scans race with the calibration timer and other paths.  reset()
> is a rather chunky function to lock in this way, but at the moment
> there's no finer grained option without pushing the lock down into the
> hardware layer.
> 
> Big fat disclaimer: when I set the code up to reset every second, 
> I could reliably hard lock my laptop after a few hours.  However, reset() 
> itself can take up to 1/3 of a second just looping (in gain and noise 
> calibration) not even counting the register writes, so I think this was 
> just a problem of having too small a period.  In normal operation we 
> don't reset anywhere near that often and I've been running for a 
> couple of days without issues.  But maybe I missed something obvious.

Just some quick update: I am using current git + your patches and I was
continuously pinging my wlan router for the last 20 hours. So far it all
works. Could be that the condition only occurs with multiple access
points/low signal quality. 

I will continue pinging for another day...
Soeren
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