>Number:         14256
>Category:       kern
>Synopsis:       Old Micropolis drive can't handle tagged commands
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Oct 15 18:13:00 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Kevin P. Neal
>Release:        NetBSD 1.5.2
>Organization:
-- 
Kevin P. Neal                                http://www.pobox.com/~kpn/

"You know, I think I can hear the machine screaming from here...  \
'help me! hellpp meeee!'"  - Heather Flanagan, 14:52:23 Wed Jun 10 1998
>Environment:
System: NetBSD tome.int.neutralgood.org 1.5.2 NetBSD 1.5.2 (TOME) #49: Mon Sep 17 20:47:46 EDT 2001 kpn@tome.int.neutralgood.org:/local/kernel/compile/TOME alpha


>Description:

I'm using the built-in SCSI (53c810) on an AXIpci33 (Alpha) system, with
the siop driver. The 1.5.1 version of the driver didn't support tagged
command queuing, the 1.5.2 version does. The drive doesn't, so you lose
when you try to upgrade. Losing involves lots of timeouts followed by
the drive (a 5.25 inch full-height) spinning down, making a loud click,
and then spinning back up. Then you get more timeouts. 

>How-To-Repeat:

Attempt to upgrade to 1.5.2 from 1.5.1 with this drive holding /usr.

>Fix:

*** scsiconf.c.old	Mon Oct 15 21:04:38 2001
--- scsiconf.c	Mon Oct 15 21:04:19 2001
***************
*** 524,529 ****
--- 524,531 ----
  	{{T_DIRECT, T_FIXED,
  	 "HITACHI", "DK515C",		"CP15"},  SDEV_NOSTARTUNIT},
  	{{T_DIRECT, T_FIXED,
+ 	 "MICROP",  "1548-15MZ1077801",	"HZ2P"},  SDEV_NOTAG},
+ 	{{T_DIRECT, T_FIXED,
  	 "HP      ", "C372",             ""},     SDEV_NOTAG},
  	{{T_DIRECT, T_FIXED,
  	 "IBMRAID ", "0662S",		 ""},     SDEV_AUTOSAVE},
>Release-Note:
>Audit-Trail:
>Unformatted: