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Date: Tue, 11 Jan 2000 00:13:53 -0500 (EST)
From: robert@kudra.com
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Subject: kern/16049: Conner Drive Doesn't like syncronize cache (surprise)
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>Number:         16049
>Category:       kern
>Synopsis:       Connor Drive fails cache sync
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jan 10 21:20:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Robert Sexton
>Release:        FreeBSD 3.4-RELEASE i386
>Organization:
Kudra.Com Web services
>Environment:
3.4 Release

>Description:

When rebooting a 3.4-RELEASE machine with a Conner drive and Adaptec
Controller, I get the following error message:

(da0:ahc0:0:0:0): SYNCHRONIZE CACHE. CDB: 35 0 0 0 0 0 0 0 0 0 
(da0:ahc0:0:0:0): ILLEGAL REQUEST asc:20,0
(da0:ahc0:0:0:0): Invalid command operation code

Here are the boot messages pertaining to the disk adapter and drive:
ahc0: <Adaptec 2940 SCSI adapter> rev 0x03 int a irq 11 on pci0.18.0
ahc0: aic7870 Single Channel A, SCSI Id=7, 16/255 SCBs

da0: <CONNER CFP1080S 4443> Fixed Direct Access SCSI-2 device 
da0: 10.000MB/s transfers (10.000MHz, offset 15), Tagged Queueing Enabled
da0: 1030MB (2110812 512 byte sectors: 255H 63S/T 131C)

>How-To-Repeat:

halt/reboot the machine.

>Fix:

*** scsi_da.c   Tue Jan 11 00:10:20 2000
--- scsi_da.c.new       Tue Jan 11 00:00:50 2000
***************
*** 160,165 ****
--- 160,173 ----
        },
        {
                /*
+                * The Conner Doesn't like it either.
+                * Reported by Robert Sexton <robert@kudra.com>
+                */
+               {T_DIRECT, SIP_MEDIA_FIXED, "CONNER", "CFP1080*",
"*"},
+               /*quirks*/ DA_Q_NO_SYNC_CACHE
+       },
+       {
+               /*
                 * Doesn't work correctly with 6 byte reads/writes.
                 * Returns illegal request, and points to byte 9 of
the
                 * 6-byte CDB.


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


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