On Fri, Mar 12, 2004 at 10:10:16PM -0800, Wes Peters wrote:
> Ok, I bumped into this problem too. Now when I try to boot my previous
> kernel I get:
> Type '?' for a list of commands, 'help' for more detailed help.
> OK unload kernel
> OK load /boot/kernel.old/kernel
> /boot/kernel.old/kernel data=0x2bbc08+0x3c568 syms=[0x8+0x4ad18+0x8+0x3d2b2]
> OK boot
> nothing to autoload yet.
> jumping to kernel entry at 0xc0040000.
> Copyright (c) 1992-2004 The FreeBSD Project.
> Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
> The Regents of the University of California. All rights reserved.
> FreeBSD 5.2-CURRENT #1: Wed Feb 18 22:58:52 PST 2004
> panic: trap: fast data access mmu miss
> at line 364 in file /usr/src/sys/sparc64/sparc64/trap.c
> Uptime: 1s
> Not good. Time to burn a 5.2.1 CD?
Ouch. I'm having trouble figuring out why the old kernel won't boot.
As Kris said someone has suggested this is similar to the problem we
had with make_dev() on the Alphas. That's certainly possible but if
that kernel had been running before I'm not so sure that's the problem,
I don't understand how the kernel would have been able to run before if
it's really the make_dev() issue.
You might want to give the ISO in snapshots/sparc64 on the mirror
sites a try instead of the 5.2.1 CD, especially if you had already
made the leap to 64-bit time_t. I was in the process of trying to
create a newer version of that when I came across the problem with
the root drive not being mountable. Now that it's fixed I'm trying
again but it will be a day or so before that's ready (if all goes
well this time :-).
Can you let us know what hardware you have? I'm most interested in
general model (e.g. Ultra-30?) and whether it has a graphical console
that's supposed to work (e.g. Creator-3D?). If it does have the
graphical console as a last resort you could try detaching the keyboard
and connecting a serial console to see if you can coax it into booting
the older kernel that way. I haven't been having problems with serial
console machines at all recently...
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