port-macppc/37975: NetBSD/macppc 4.0 locks up at SCSI on Power Macintosh G3

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>Number:         37975
>Category:       port-macppc
>Synopsis:       NetBSD/macppc 4.0 locks up at SCSI on Power Macintosh G3
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    port-macppc-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Feb 07 14:55:00 +0000 2008
>Originator:     Ed
>Release:        4.0
>Organization:
None
>Environment:
N/A
>Description:
NetBSD, when booting on a Power Macintosh G3 (Beige/Minitower/OF2.0F1), will 
boot up to "scsibus0: Waiting 2 seconds for devices to settle" then stop. There 
are no SCSI devices attached beyond the MESH chip, and the kernel just spins at 
that point and never advances. Keyboard reset works, so the machine is not 
hardlocked, but NetBSD is still quite unusable as it stands.
>How-To-Repeat:
Get a Power Macintosh G3 with 2.0F1 OFW, try to boot (CD-ROM Partition 0 or 
Floppy, both exhibit the issue) and watch it not boot.
>Fix:
Fix not known... at least not by me.