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Date:      Sun, 10 Sep 2000 20:16:23 -0700 (PDT)
From:      John Baldwin <jhb@pike.osd.bsdi.com>
To:        Manfred Antar <null@pozo.com>
Cc:        current@FreeBSD.ORG
Subject:   Re: New Fatal trap in Current SMP (random.dev changes ??)
Message-ID:  <200009110316.UAA31476@pike.osd.bsdi.com>
In-Reply-To: <4.3.2.7.2.20000910192526.00b280e0@pozo.com> from Manfred Antar at "Sep 10, 2000 07:45:25 pm"

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Manfred Antar wrote:
> >From a new kernel compiled from sources current 7:30 pm 9/10/00 pacific time
> Although the first occurrence happened this morning after compiling a kernel 
> after the random dev changes.
> The system boots and mounts disks. When it gets to this point:
> Additional routing options: TCP extensions=NO TCP keepalive=YES.
> routing daemons:.
> I think the random dev kicks in at this point
> 
> Fatal trap 12: page fault while in kernel mode
> cpuid = 1; lapic.id = 0c000000
> fault virtual address = 0x2c
> fault code		= supervisor read, page not present
> instruction pointer	= 0x8:0xc014f280
> stack pointer		= 0x10:0xc9a74f84
> frame pointer		= 0x10:0xc9a74f9c
> code segment		= base 0x0, limit 0xfffff, type 0x1b
> 			= DPL 0, pres 1,def 32 1,gran 1
> processor flags	= interrupt enabled, resume, IOPL = 0
> current process	= 2 (random)
> trap number		= 12
> panic: page fault
> cpuid = 1; lapic.id = 0x000000
> boot() called on cpu#1
> 
> syncing disks.......
> 
> The machine then is frozen and needs a reset to work again
> the debugger is unavailable

ddb works fine here with this new trap, but I can't get remote gdb to work
to save my life.  I think that remote gdb must not like me or something.

-- 

John Baldwin <jhb@bsdi.com> -- http://www.FreeBSD.org/~jhb/
PGP Key: http://www.cslab.vt.edu/~jobaldwi/pgpkey.asc
"Power Users Use the Power to Serve!"  -  http://www.FreeBSD.org/


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