Current crash (trap 12)

[Kevin Oberman]

I just updated my T30 to current this morning (about 18:00 UTC) and the
new system will not boot to single user.  The failure is very early in
the system probe. Last message is apm0: <APMBIOS> on motherboard. The
second apm message never made it.

Fatal trap 12: page fault while in kernel mode
fault virtual address	  = 0x1c
fault code		  = supervisor write, page not present
instruction pointer	  = 0x8:0xc0327e18
stack pointer		  = 0x10:0xc050d976
frame pointer		  = 0x10:0xc050dad2
code segment		  = base 0x0, limit 0xfffff, type 0x1b
			  = DPL 0, pres 1, def32 1, gran 1
processor eflags	  = interrupt enabled, resume, IOPL = 0
current process		  = 0 (swapper)
kernel: type 12 trap, code=0
Stopped at      vm_fault+0x268: cmpxchgl          %edx,0x1c(%ecx)
db> tr
vm_fault(c0541000,c0000000,2,0,c0422d60) at vm_fault+0x268
trap_pfault(c050db6a,0,c00004d8,dbfc0000,c00004d8) at trap_pfault+0x1c8
trap(db8c0018,59880010,dbac0060,1c,0) at trap+0x3bd
calltrap() at calltrap+0x5
--- trap 0xc, eip = 0x5812, esp = 0xc050dbaa, ebp = 0xc050ddb0 ---
(null)(dbc40058,0,530e0102,80202,50592a) at 0x5812
db>

This was transcribed by hand.

I have a dump if it would be useful. Config file also available on
request.

R. Kevin Oberman, Network Engineer
Energy Sciences Network (ESnet)
Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
E-mail: oberman at es.net			Phone: +1 510 486-8634

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