Re: Unreliable Wireless network with 3.0.9-rt26

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On Tue, 2012-01-31 at 17:08 +0100, Tim Sander wrote:
> Hi
> > I'm having trouble running wifi in combination with a rt enabled kernel
> > 3.0.9-rt26 on an imx51 arm platform. The distro is openwrt-trunk.
> > 
> > The device has 2 usb wifi interfaces (AR9271 chipset; driver: based on
> > compat-wireless-testing 2011-12-01). I am running an iperf load on both
> > interfaces, one interface is in AP mode, the other in STA mode.
> > 
> > When I configure the kernel without RT preemption, the device runs
> > stable for >10 hours.
> > 
> > With RT preemption enabled, after a couple of minutes some interface
> > will stop transmitting data. Sometimes ifconfig wlan[0,1] down will
> > hang, sometimes ifconfig wlan[0,1] down will work, but then ping will
> 
> Just my 5 cents: I am working on the imx 35 platform and i am also having 
> problems with the network setup. I have sent a bugsplat to this list which 
> occurs in the network setup with 3.2-rt. I suspect that these two errors are 
> related. Steven Rosted wanted to look after it, but it seems he hasn't until 
> now.
> 

Yeah, I've been hunting down other nasty bugs in the mean time. I could
start looking at this. I suspect it may be due to another try_lock()
thingy.

-- Steve


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