5.3-BETA7 install cd: kernel trap 12 with interrupts disabled

[Guido van Rooij]

On Fri, Oct 15, 2004 at 04:14:04AM -0400, Robert Watson wrote:
> > 
> > I am beginning to wonder if we should have a boot option that enables a
> > thorough memtest from within the kernel...(e.g. boot -m). 
> 
> I guess the old /dev/test_for_shoddy_workmanship driver is working :-).
> 
> It's probably just bad luck -- BIOS memory testing is generally pretty
> poor, and it could just be FreeBSD stored your root vnode pointer (or some
> other critical thing) in a memory word that Win2K was using for an icon,
> so a single bit twiddle did pretty different things.  Glad it's fixed.  I
> occasionally wonder if we shouldn't build a memory tester into the FreeBSD
> boot loader to help diagnose this sort of stuff, though.  Not to run every
> boot, but as a diagnostics option.

Yep, exactly my thoughts. I think this is a wonderfull idea.

-Guido