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Date: Mon, 20 Mar 2000 05:16:06 -0800 (PST)
From: satherrl@dssrg.curtin.edu.au
To: freebsd-gnats-submit@FreeBSD.org
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Subject: kern/17504: Another Micropolis Synchronize Cache Problem
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>Number:         17504
>Category:       kern
>Synopsis:       Another Micropolis Synchronize Cache Problem
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Mar 20 05:20:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     richard
>Release:        3.4-STABLE
>Organization:
curtin university
>Environment:
FreeBSD hagaar.itssa.curtin.FreeBSD hagaar.itssa.curtin.edu.au 3.4-STABLE FreeBSD 3.4-STABLE #0: Mon Mar 20 13:47:32 WST 2000     root@hagaar.itssa.curtin.edu.au:/usr/src/sys/compile/HAGAAR  i386
edu.au 3.4-STABLE FreeBSD 3.4-STABLE #0: Mon Mar 20 13:47:32 WST 2000     root@hagaar.itssa.curtin.edu.au:/usr/src/sys/compile/HAGAAR  i386

>Description:
Machine hangs with Micropolis drives. Using a 6 way ccd hanging off a
Pentium - simple mtree -c -K md5digest , newfs etc etc will stop the
machine. shutdown -r now, freezes just after sync disks done.

All drives are old 2.8 GB model 1936
>How-To-Repeat:
use a Micropolis 1936 drive
>Fix:
same as all the other Micropolis fixes I found in 
/usr/src/sys/cam/scsi/scsi_da.c   i.e.

154a155,160
>                */
>               {T_DIRECT, SIP_MEDIA_FIXED, "MICROP", "1936*", "*"},
>               /*quirks*/ DA_Q_NO_SYNC_CACHE
>       },
>       {
>		/*
>


>Release-Note:
>Audit-Trail:
>Unformatted:


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