port-atari/40571: NetBSD Atari install fails to prepare 16GB MTRON SSD on ACARD SCSI to IDE bridge

[dross%pobox.com@localhost]

>Number:         40571
>Category:       port-atari
>Synopsis:       NetBSD Atari install fails to prepare 16GB MTRON SSD on ACARD 
>SCSI to IDE bridge
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    port-atari-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Feb 07 06:40:01 +0000 2009
>Originator:     David Ross
>Release:        5
>Organization:
n/a
>Environment:
n/a
>Description:
I'm attempting to install NetBSD 5 (200902030000Z) onto an MTRON 16GB IDE SSD 
which is hanging off an ACARD SCSI to IDE bridge.  The hardware is known good 
and I've done such an install with NetBSD 1.6.1.  I also regularly install 
NetBSD 5 builds onto a Seagate SD318418N and it works great.

That being said, the MTRON setup did cause occasional panics under NetBSD 1.6.1 
where I did not see this with the Seagate.  I was hoping to test if that 
problem still happens on NetBSD 5 but got blocked by this install issue.

How to reproduce the install issue:
1.  Zero the MTRON drive.
2.  Boot into NetBSD 5 and begin an install.  Don't choose the option to use 
AHDI partitioning.
3.  Keep the default drive settings, except bump up the swap partition to 256 
MB.
  - Now observe that even though you typed 256, the swap partition size is 
reported to be set at 257 MB.  This doesn't happen with the Seagate.  Maybe 
this is a hint as to what's going on?
4.  Proceed with the install and observe that disklabel fails with:
disklabel: ioctl DIOCWDINFO: Device not configured
Screenshot: http://i44.tinypic.com/2dw7nly.jpg

5.  After being dumped back at the main installer screen, start the install 
again and follow the same steps.
6.  Now observe a different error as the drive is prepared:
disklabel: partition b: partition extends past end of unit
Screenshot: http://i42.tinypic.com/vpi2cl.jpg

>How-To-Repeat:
See the full description.
>Fix:
Install to a different drive.  =\