> > Ok -- I patched vesafb.c as follows:
> >
> > mtrr_add((unsigned long)video_base, video_size, MTRR_TYPE_WRCOMB, 1);
> > + mtrr_add((unsigned long)video_base, video_size, MTRR_TYPE_UNCACHABLE,
> > 1);
> >
> > I still got the lockup.
>
> That's quite bad. Can you do two separate tests, please? Firstly,
> insert a printk just before the call to mtrr_add() and send me a copy
> of your kernel logs?
Gerd: Is there a way to defer the call to this code until after boot? It's
getting called so early in the boot sequence that no messages are logged.
> Secondly, disable that code from the kernel and instead use the
> /proc/mtrr interface and tell me if the problem goes away or not.
I'll do that this evening -- the machine that shows this failure hosts a inhouse
web site during the day.
>
> Finally, do you have an SMP machine?
Yes -- it's an HP Vectra XU 6/150 ( 2xPPRO 150 - KX chipset). If you'd like, I
can build a UP kernel and give that a try.
-Tom
-- Tom Eastep COMPAQ Computer Corporation Enterprise Computing Group Tandem Division tom.eastep@compaq.com- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.altern.org/andrebalsa/doc/lkml-faq.html