kern/89196: [patch] Kingston DataTraveler 2.0 doesn't like the synchronize cache command

[Andrey Simonenko]

>Number:         89196
>Category:       kern
>Synopsis:       [patch] Kingston DataTraveler 2.0 doesn't like the synchronize cache command
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          change-request
>Submitter-Id:   current-users
>Arrival-Date:   Thu Nov 17 14:00:24 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Andrey Simonenko
>Release:        FreeBSD 6.0-STABLE i386
>Organization:
>Environment:
>Description:

It seems that Kingston DataTraveler 2.0 does not like the synchronize
cache command.  The kernel outputs "Synchronize cache failed" messages
when this USB flash device is plugged in.

After patch I copied several files to USB flash device, umount USB flash
device's file system and mount it again, then compare MD5 digests of files
from USB flash device and original ones.

>How-To-Repeat:

kernel: umass0: Kingston DataTraveler 2.0, rev 2.00/1.00, addr 2
kernel: da0 at umass-sim0 bus 0 target 0 lun 0
kernel: da0: <Kingston DataTraveler 2.0 1.04> Removable Direct Access SCSI-0 device 
kernel: da0: 1.000MB/s transfers
kernel: da0: 980MB (2007040 512 byte sectors: 64H 32S/T 980C)
kernel: umass0: Phase Error, residue = 0
kernel: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x4, scsi status == 0x0
kernel: umass0: Phase Error, residue = 0
kernel: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x4, scsi status == 0x0
kernel: umass0: Phase Error, residue = 0

>Fix:
--- scsi_da.c.orig	Thu Jun  9 20:35:04 2005
+++ scsi_da.c	Tue Nov 15 15:32:14 2005
@@ -354,6 +354,13 @@
 		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston" , "DataTraveler II+", "*"},
 		/*quirks*/ DA_Q_NO_SYNC_CACHE
 	},
+	{
+		/*
+		 * Kingston DataTraveler 2.0 USB Flash memory.
+		 */
+		{T_DIRECT, SIP_MEDIA_REMOVABLE, "Kingston", "DataTraveler 2.0", "*"},
+		/*quirks*/ DA_Q_NO_SYNC_CACHE
+	},
 };
 
 static	disk_strategy_t	dastrategy;
>Release-Note:
>Audit-Trail:
>Unformatted: