On Friday 07 October 2011 16:18:47 Niclas Zeising wrote:
> This might or might not be related, but, I'm having trouble with the iwn 
> firmware crashing. I also have a clang built kernel (and userland) 
> buildwith CPUTYPE=core2. My iwn device is
> iwn0: <Intel(R) Wireless WiFi Link 4965> mem 0xe4000000-0xe4001fff irq 
> 17 at device 0.0 on pci16
> and the firmware gives the following output when it dies.
> iwn0: iwn_intr: fatal firmware error
> firmware error log:
>    error type      = "NMI_INTERRUPT_WDG" (0x00000004)
>    program counter = 0x0000046C
>    source line     = 0x000000D0

This is a known issue with the 4965's firmware. I have yet to find
a reliable solution for that.. As a workaround you can disable
background scan with
ifconfig wlan0 -bgscan
 
> The only way to restore the firmware is to reboot the computer.

No need to reboot, killing the VAP and recreating it should get
you going again.

-- 
Bernhard
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