From J.Klaus@sh.cvut.cz  Thu Jan 28 12:19:17 1999
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Date: Thu, 28 Jan 1999 21:19:27 +0100 (CET)
From: J.Klaus@sh.cvut.cz
Reply-To: J.Klaus@sh.cvut.cz
To: FreeBSD-gnats-submit@freebsd.org
Subject: Tar process hangs on buggy tapes
X-Send-Pr-Version: 3.2

>Number:         9759
>Category:       i386
>Synopsis:       Tar process hangs on buggy tapes
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jan 28 12:20:00 PST 1999
>Closed-Date:    Thu May 24 12:42:29 PDT 2001
>Last-Modified:  Thu May 24 12:42:41 PDT 2001
>Originator:     Jaroslav Klaus
>Release:        FreeBSD 2.2.8-STABLE i386
>Organization:
>Environment:

dmesg:
  ncr0 <ncr 53c810 fast10 scsi> rev 1 int a irq 9 on pci0:11:0
  (ncr0:4:0): "UNISYS M1017UD-4MM 316H" type 1 removable SCSI 2
  st0(ncr0:4:0): Sequential-Access 
  st0(ncr0:4:0): 5.0 MB/s (200 ns, offset 8)
  density code 0x13,  drive empty

my kernel config:
  controller      ncr0
  controller      scbus0
  device          st0

>Description:

I have buggy 4mm DDS-90 tape (AIX reports I/O error after cca
800MB). After 800MB of writting data to the tape, tar process
hangs and device is busy. Restart is needed.

ps:
 5210  p1- DE     0:00.00  (tar)

/var/log/messages:
  Jan 28 17:42:47 **** /kernel: ncr0: timeout ccb=f11be800 (skip)
  Jan 28 17:44:52 **** /kernel: ncr0: SCSI phase error fixup: CCB
  already dequeued
  Jan 28 17:44:59 **** /kernel: ncr0: timeout ccb=f11be800 (skip)

>How-To-Repeat:

To store data by tar to buggy tape on system with ncr 53c810 and
UNISYS M1017UD-4MM 316H tape drive (it is one of SONY tape
drives).

>Fix:
	
	

>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: mjacob 
State-Changed-When: Sun Oct 29 10:33:13 PST 2000 
State-Changed-Why:  
Is this problem exist for you still in later FreeBSD releases? 

http://www.freebsd.org/cgi/query-pr.cgi?pr=9759 
State-Changed-From-To: feedback->closed 
State-Changed-By: kris 
State-Changed-When: Thu May 24 12:42:29 PDT 2001 
State-Changed-Why:  
Feedback timeout 

http://www.FreeBSD.org/cgi/query-pr.cgi?pr=9759 
>Unformatted:
