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Date: Fri, 19 Jan 1996 18:34:44 -0500 (EST)
From: "Marc G. Fournier" <scrappy@ki.net>
cc: current@FreeBSD.org
Subject: current kernel panics on boot (Re: machdep.c, pmap.c and i386 CPUs)
In-Reply-To: <199601192227.XAA01553@wurzelausix.CS.Uni-SB.DE>
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On Fri, 19 Jan 1996, D. Rock wrote:

> Noone else running FreeBSD-current on a 386 processor.
> 
> The machine panics immediately. The problem is the in this stage
> uninitialized variable cpu_class in /sys/i386/i386/machdep.c
> In pmap.c the code jumps to the wrong place and the machine hangs with
> an illegal instruction. After initializing the variable with a default
> value of CPUCLASS_386 the machine just works fine now.
>

Don't know if this is related, but just compiled the newest kernel
as of about 5PM this afternoon, and on boot up, it fails right after
the "Copyright (c)..." line.

Fatal trap 1: privileged instruction fault while in kernel mode
instruction pointer:	0x8:0xf019c5ec
code segment:		base 0x0, limit 0xfffff, type 0x1b
			DPL 0, pres 1, def32 1, gran 1
processor eflags:	resume, IOPL = 0;
current process:	0 ()
interrupt mask:		net tty bio
kernel: type 1 trap, code=0
Stopped at	0xf019c5ec:	invlpg	0(%eax)

And a trace comes up with a bunch of lines starting with (null)
and that is it...

Oh...and its a 386 CPU

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