WARN_ON() hit in fsl bitbanged phy driver

[Rune Torgersen]

Scott Wood wrote:
> Rune Torgersen wrote:
>> I hit the following WARN_ON when using mii-tools agains a ethernet
>> interface using a bit-banged mii interface
> 
> It looks like the kernel thinks it's in an interrupt, even though it
> clearly isn't from the backtrace.  Presumably, something
> slept from an
> interrupt handler; try turning on sleep-in-spinlock debugging.

I turned on sleep-in-spinlock and it did not reveal anything. I'm trying
some other debug options.

> The root cause was probably something other than the phy code.
I'm not so sure, because it only happens when I run mii-tool agains the
interface useing the bit-banged driver, and then only the first time.