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Date: Sat, 13 Feb 1999 17:08:08 +0100 (CET)
From: Frederic LOYER <loyer@ensta.fr>
Reply-To: loyer@ensta.fr
To: FreeBSD-gnats-submit@FreeBSD.ORG
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Subject: i386/10089: ATAPI tape driver (wst) doesn't handle End Of Media error
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>Number:         10089
>Category:       i386
>Synopsis:       ATAPI tape driver (wst) doesn't handle End Of Media error
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 14 10:10:00 PST 1999
>Closed-Date:
>Last-Modified:
>Originator:     Frederic LOYER
>Release:        FreeBSD 3.0-RELEASE i386
>Organization:
ENSTA - Ecole Nationale Superieure de Techniques Avancees
>Environment:

FreeBSD 3.0-RELEASE i386

>Description:

When writing to a tape, an EIO error is returned at the end of the media.
This prevents multi-volume dumps.

>How-To-Repeat:

dump 0abf 32 /dev/nrwst0 /usr

where  /usr is a file system which can't be contained in a single tape.

>Fix:

In the src/sys/i386/isa directory, apply the folowing patch:

The switch statement could be replaced by an "if" one. I prefer
a switch, thinking of adding perhaps one other error type (such as
AER_MCR, media change requested)

*** wst.c.orig  Sat Feb 13 11:52:35 1999
--- wst.c       Sat Feb 13 12:15:24 1999
***************
*** 503,509 ****
      if (result.code) {
        printf("wst_done: ");
          wst_error(t, result);
!         bp->b_error = EIO;
          bp->b_flags |= B_ERROR;
      }
      else
--- 503,515 ----
      if (result.code) {
        printf("wst_done: ");
          wst_error(t, result);
!       switch (result.error) {
!       case AER_EOM:
!           bp->b_error = ENOSPC;
!           break;
!       default:
!           bp->b_error = EIO;
!       }
          bp->b_flags |= B_ERROR;
      }
      else

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

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