Mbuf double-free guilty party detection patch

[Mike Silbersack]

> Didn't have much luck with your patch:
>
> x.123b:This memory last freed by: 0
> x.123b-panic: Memory modified after free 0xc25a7100(256) val=0 @
> 0xc25a7100
> --
> x.123c:This memory last freed by: 0
> x.123c-panic: Memory modified after free 0xc1f60e00(256) val=0 @
> 0xc1f60e00

Interesting on those two...

> x.123e:This memory last freed by: 0xc2fa6c00
> x.123e-panic: Memory modified after free 0xc2fa6a00(256) val=c2fa6c00 @
> 0xc2fa6a00
>
> - Peter

Now do a "x 0xc2fa6c00" in DDB to find out who was calling m_free.

Mike "Silby" Silbersack