Date: Wed, 15 Apr 1998 20:27:40 +0200 From: Andreas Braukmann <braukmann@tse-online.de> To: freebsd-current@FreeBSD.ORG Subject: 'fatal trap 12' on boot (smp and up) Message-ID: <19980415202740.43100@paert.tse-online.de>
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Hello,
I was running (quit happily) -current from late November '97 with
an smp-enabled kernel.
I updated my sources to 98/04/06 and waited a few days for
'alarm' and 'heads up'-messages on -current.
Yesterday I made the world, installed the world and made my kernel
based on my old kernel-configuration (just deleted the outdated 'log'
pseudo-device).
The new kernel traps on boot immediatly (after it's loaded).
This happens to both - the smp-enabled and the normal uni-proc. kernel.
(same config, just without smp).
The hardware:
* Gigabyte 686DX Dual PPro 200
* Award BIOS
* 128 MB Ram
The trap: (from the uni-proc. kernel, cited from hand-written notes)
Fatal trap 12: page fault while in vm86 mode
fault virtual address: 0x26e0
fault code: user read, page not present
ip = 0x24a:0x240
sp = 0x0:0xff8
fp = 0x0:0x0
cs = base 0xf0000008, limit 0xd14c8, type 0xf
DPL 0, pres 1, def 32 0, gran 0
proc eflags = trace trap, int enabled, resume, vm86, IOPL=0
cur proc = idle
int mask = net tty bio cam
I even made a 'config -g' up-kernel, but a 'trace'-command
in the kernel-debugger didn't spit out anything that seemed very
useful to me (I'm a non-kernel hacker ...), just something about
'xxxx DYNAMIC xxxx'.
The trap appears at exactly the same addresse for the smp and the up-case.
Any hints?
Thanks,
Andreas
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