From owner-freebsd-hackers@FreeBSD.ORG  Wed Jul 16 11:19:06 2003
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Date: Wed, 16 Jul 2003 14:19:04 -0400 (EDT)
From: Kyle McPeek <kyle@openworldinc.com>
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Subject: 5.1 ata  broken on Dell 600sc(Serverworks)
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A snapshot from March 29, 2003 works.  5.1-RELEASE or -CURRENT panics
during boot.

the panic looks something like this:
unknown PNP0501 Can't assign resources (port)
unknown PNP0401 Can't assign resources (port)
unknown PNP0700 Can't assign resources (port)
unknown PNP0f13 Can't assign resources (irq)
unknown PNP0303 Can't assign resources (port)
unknown PNP0c01 Can't assign resources (port)

timecounters tick every 10.000 msec


fatal trap 12: page fault while in kernel mode

fault virtual address           = 0x20
fault code                      = supervisor read, page not present
instruction pointer             = 0x8: 0xc018a87c
stack pointer                   = 0x10: 0xdf4aace0
frame pointer                   = 0x10: 0xdf4aacf0
code segment                    = base 0x0, limit 0xfffff, type 0x1b
                                = DPL 0, pres 1, def32 1, gran 1
processor eflags                = interrupt enable, resume, IOPL = 0
current process                 = 19 (irq 11: atapci0)
trap number                     = 12

panic: page fault


The problem is kern/54549.

I have boxes to test booting on.

kyle.