ipfw and bridge: unaligned payload pointers panicing perfectly performing MIPS boxes

[Adrian Chadd]

Hi everyone (and Luigi especially!)

I've found that enabling ipfw for bridge interfaces panics my MIPS
boards. A bit of digging shows that the payload mbuf isn't aligned as
passed into ipfw_chk(), and this is causing aligned access exceptions.

It likely isn't a problem on i386/ia64 because they are happy with
unaligned access. :-)

I'm going to try and patch it locally by copying the mbuf payload into
a new, temporary mbuf that's aligned; but I have no idea what the
"right" solution for the stack is.

Ideas? :)


Adrian