[urtw] Random wireless crash / kernel panic

[Bernhard Schmidt]

On Monday 20 February 2012 18:03:45 Adam Twardowski wrote:
> I do still have the kernel and the crash dump.  I'll try that fix tonight
> to see how it goes.  Unfortunately, the kernel doesn't usually crash, more
> likely the wifi stops working and I am forced to reboot the machine to get
> it working again.

Building urtw(4) as module here helps a lot, kldunload/kldload is just so much faster than a reboot. :)

I have a bunch of asorted fixes [1] for urtw(4) which needs some further testing, though I still wasn't able to fix the issue which made me look into this in the first place.. As a test case I force a disconnection from the AP side a few times, which will eventually result in a device timeout and the requirement to reload the module. I believe that one of those might actually address the panic you're seeing, though, it doesn't fix the device timeout.

[1] http://techwires.net/~bschmidt/urtw/

-- 
Bernhard