> From: Ross Harvey <ross@netbsd.org>
>
> Module Name:	syssrc
> Committed By:	ross
> Date:		Mon May 31 20:49:01 UTC 1999
>
> Modified Files:
> 	syssrc/sys/arch/alpha/alpha: pmap.c
>
> Log Message:
> In PMAP_ISACTIVE(), check curproc->p_vmspace before using it; this macro
> is called early in startup, long before p_vmspace is set to &vmspace0.

I probably should have mentioned that this applies to DEBUG kernels only.