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system/1874: pcibios causes boot process to hang




>Number:         1874
>Category:       system
>Synopsis:       pcibios causes boot process to hang
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 13 07:50:02 MDT 2001
>Last-Modified:
>Originator:     Russell Sutherland
>Organization:
Quist Consulting		Email: russ@quist.ca
219 Donlea Drive 		Voice: +1.416.696.7600
Toronto ON  M4G 2N1		Fax:   +1.416.978.6620
CANADA				WWW:   http://www.quist.ca
>Release:        2.9
>Environment:
	
	System      : OpenBSD 2.9
	Architecture: OpenBSD.i386
	Machine     : i386
>Description:
	When booting with the GENERIC kernel, the boot process
	hangs at the following point:

	pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
	fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
	fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
	biomask c848 netmask c868 ttymask d8ea
	pctr: 686-class user-level performance counters enabled
	mtrr: Pentium Pro MTRR support
	dkcsum: wd0 matched BIOS disk 81

	I have seen this problem on  two different machines,
	one running 2.8 and 2.9, the other just 2.9.

>How-To-Repeat:
	repeat the boot process
>Fix:
	1. Boot with the -c flag and then disable pcibios.
	2. Use the config -e /bsd -o /bsd.nopcibios etc..
           command to permanently disable pcibios

>Audit-Trail:
>Unformatted: