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Date:      Thu, 9 Oct 2003 13:04:47 -0700
From:      Joao Pedras <jpedras@webvolution.net>
To:        "Kevin Oberman" <oberman@es.net>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: panic after update
Message-ID:  <20031009130447.7a0fdc06.jpedras@webvolution.net>
In-Reply-To: <20031009162058.AA0445D07@ptavv.es.net>
References:  <20031008211436.2b1f5ff7.jpedras@webvolution.net> <20031009162058.AA0445D07@ptavv.es.net>

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Kevin,

first of all thank you for your quick reply.

It was a good sugestion. The kernel boots up perfectly without apm.

I already submitted a pr.

Thanks!

On Thu, 09 Oct 2003 09:20:58 -0700
"Kevin Oberman" <oberman@es.net> wrote:

> > Date: Wed, 8 Oct 2003 21:14:36 -0700
> > From: Joao Pedras <jpedras@webvolution.net>
> > Sender: owner-freebsd-stable@freebsd.org
> > 
> > 
> > Hi all,
> > 
> > After going over the usual steps to update my laptop (thinkpad A31) to today's -stable I get
> > a kernel panic when booting the new kernel. I didn't change anything in the kernel
> > config or anywhere else for that matter. This laptop has been running sucessfully several 
> > versions of -stable over the last year.
> > 
> > buildworld, buildkernel and friends were 100% sucessfull.
> > 
> > Any insight into this matter is appreciatted.
> > 
> > Here is the output:
> > 
> > apm0: <APM BIOS> on motherboard
> > Kernel trap 12 with interrupts disabled
> > Fatal trap 12: page fault while in kernel mode
> > fault virtual address		= 0x36
> > fault code			= supervisor write, page not present
> > instruction pointer		= 0x8:0xc025b240
> > stack pointer			= 0x10:0xc0436d6e
> > frame pointer			= 0x10:0xc0436e0e
> > code segment			= base 0x0, limit 0xfffff, type 0x1b
> > 				= DPL 0, pres 1, def 32 1, gran 1
> > processor eflags		= interrupt enabled, resume, IOPL = 0
> > current process 		= 0 (swapper)
> > interrupt mask			= net tty bio com
> > trap number			= 12
> > panic: page fault
> > uptime : 0s
> > Automatic reboot in 15 seconds
> 
> This looks like it MIGHT be an APM problem which Peter Wemm found and
> fixed in CURRENT about a week ago. As far as I know, this is the first
> report of the problem on a STABLE system (if it's the same problem).
> 
> Try building a new kernel without APM (and don't load it in
> /boot/loader.conf, either). If this allows the system to boot, please
> submit a PR so that the few people who understand the locore.s stuff
> well enough to have a chance to find it can get it fixed. (I am not
> one of those people.)
> -- 
> R. Kevin Oberman, Network Engineer
> Energy Sciences Network (ESnet)
> Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
> E-mail: oberman@es.net			Phone: +1 510 486-8634


-- 



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