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From: Steve Passe <smp@csn.net>
To: Hajimu UMEMOTO <ume@calm.imasy.or.jp>
cc: current@FreeBSD.ORG, smp@FreeBSD.ORG
Subject: Re: Fatal trap 12 during boot with -current 
In-reply-to: Your message of "Sat, 30 Aug 1997 06:10:14 +0900."
             <199708292110.GAA00357@peace.calm.imasy.or.jp> 
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Date: Fri, 29 Aug 1997 16:21:32 -0600
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Hi,

---
> The very recent -current kernel causes fatal trap 12 during boot.
> 
> 			. . . 
> 	Starting final network daemons: moused

probably what kills it.  is this an lkm?  try booting without moused.

---
> 
> 	Fatal trap 12: page fault while in kernel mode
> 	cpuid = 1
> 	lapic.id = 16777216
        ^^^^^^^^^^^^^^^^^^^

this is totally bogus

> 	fault virtual address	= 0xeffd6dac
> 	fault code		= super visor read, page not present
> 	instruction pointer	= 0x8:0xf019eb23
> 	stack pointer		= 0x10:0xff803e0c
> 	frame pointer		= 0x10:0xff803e2c
> 	code segment		= base 0x0, limit 0xfffff, type 0x16
> 				= DPL 0, pres 1, def32 1, gran 1
> 	processor eflags	= interrupt enabled, resume, IOPL = 0
> 	current process		= Idle
> 	mp_lock			= 01000003
> 	interrupt mask		=  <- SMP: XXX
> 	kernel: type 12 trap, code=0
> 
> 	CPU1 stopping CPUs: 0x00000001
> 	 stopped
> 	Stopped at	_pmap_enter+0xb3:	movl	0(%ecx),%ecx
> 	db>

is this repeatable?

we need a 'trace' when it stops, and probably a 'show registers'
--
Steve Passe	| powered by 
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