From rgrimes@gndrsh.aac.dev.com  Sun May 14 12:55:37 1995
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Date: Sun, 14 May 1995 12:55:29 -0700
From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>
Reply-To: rgrimes@gndrsh.aac.dev.com
To: FreeBSD-gnats-submit@freebsd.org
Subject: bad144
X-Send-Pr-Version: 3.2

>Number:         411
>Category:       kern
>Synopsis:       bad144 allow you to add blocks in the remap area
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:
>Keywords:
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun May 14 13:00:00 1995
>Closed-Date:    Fri Dec 1 03:08:28 PST 1995
>Last-Modified:  Fri Dec  1 03:09:10 PST 1995
>Originator:     Rodney W. Grimes
>Release:        FreeBSD 2.1.0-Development i386
>Organization:
Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
Accurate Automation Company                   Custom computers for FreeBSD
>Environment:

	All FreeBSD versions with bad144 support.

>Description:

	Bad144 allows you to add a bad block to the bad144 table
	that is in the remapped sector area.  It is not clear
	just what the bad144 kernel support does when this is done.

	THIS IS NOT THE SAME BUG AS REPORTED IN bin/410!

	From Bruce Evans:
	Actually it would be a good idea to check the 126 + (5 * 2 -1) sectors
	beyond the above `bend' and complain louder if any are bad.  I'm not
	sure if bad144 handles recursive remapping of bad sectors!  I think
	it handles bad sectors in the bad sector table itself OK.  There are
	5 copies of the table, and the first good one is used.

	Also, the in check (sn < 0 || sn >= size), `size' should probably be
	`bend' or `bend + 126 + 5 * (2 -1)' for the same reason.

>How-To-Repeat:

	Add a bad144 block in the space sector area and see what
	the kernel does with it.

>Fix:
	

Index: bad144.c
===================================================================
RCS file: /home/ncvs/src/usr.sbin/bad144/bad144.c,v
retrieving revision 1.7
diff -c -r1.7 bad144.c
*** 1.7	1995/05/14 08:40:37
--- bad144.c	1995/05/14 19:54:16
***************
*** 345,351 ****
  	while (argc > 0) {
  		sn = atoi(*argv++);
  		argc--;
! 		if (sn < 0 || sn >= size) {
  			printf("%ld: out of range [0,%ld) for disk %s\n",
  			    sn, size, dp->d_typename);
  			errs++;
--- 345,351 ----
  	while (argc > 0) {
  		sn = atoi(*argv++);
  		argc--;
! 		if (sn < 0 || sn >= bend) {
  			printf("%ld: out of range [0,%ld) for disk %s\n",
! 			    sn, bend, dp->d_typename);
  			errs++;
>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->closed 
State-Changed-By: phk 
State-Changed-When: Fri Dec 1 03:08:28 PST 1995 
State-Changed-Why:  
Commit this one too, hoping that we don't break anything. 
>Unformatted:


