panic in device driver strategy function: bp->b_dev==NULL
NKoch at demig.de
Fri May 27 06:34:44 PDT 2005
> I have written a small device driver for a static ram
> based disk. The code is - more or less - derived from
> Poul Henning Kamp's md device.
> It is written for FreeBSD 4.X.
> This device is kld-loaded and runs without any problems
> with my 'standard' kernel configuration.
> As soon as I boot a kernel with some debug settings the
> driver crashes due to a failed assertion in my strategy
I played around with configuration switches and found,
that without "option DEBUG_LOCKS" all is ok.
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