From venglin@freebsd.lublin.pl  Thu Aug  3 07:49:51 2000
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Date: 3 Aug 2000 14:49:19 -0000
From: venglin@freebsd.lublin.pl
Reply-To: venglin@freebsd.lublin.pl
To: FreeBSD-gnats-submit@freebsd.org
Subject: Panic when trying to mount non-fixated CD
X-Send-Pr-Version: 3.2

>Number:         20382
>Category:       kern
>Synopsis:       Panic when trying to mount non-fixated CD
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    sos
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Aug 03 07:50:01 PDT 2000
>Closed-Date:    Tue Nov 14 00:50:49 PST 2000
>Last-Modified:  Tue Nov 14 00:51:53 PST 2000
>Originator:     Przemyslaw Frasunek
>Release:        FreeBSD 4.1-STABLE i386
>Organization:
ISMEDIA
>Environment:

FreeBSD own3d.freebsd.lublin.pl 4.1-STABLE FreeBSD 4.1-STABLE #0: Sat Jul 29 18:33:05 CEST 2000     root@own3d.freebsd.lublin.pl:/usr/src/sys/compile/OWNED  i386

>Description:

	Kernel panics, when trying to mount written, but non-fixated CD-ROM.

>How-To-Repeat:

	1. Burn CD-R without fixate command.
	2. Leave CD in recorder (CDROMs usually doesn't read non-fixated CDs
	   at all)
	3. Mount it.
	4. Panic (page fault).

>Fix:

	Unknown.


>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: sheldonh 
State-Changed-When: Fri Aug 4 02:09:33 PDT 2000 
State-Changed-Why:  
Could you get a backtrace with debugging symbols?  You'll 
need a debugging kernel (``makeoptions DEBUG=-g'' in the 
kernel config file and config'd with config -g). 

Once you have one, have a look at the instructions at: 

http://www.freebsd.org/handbook/kerneldebug.html 

Be sure to send your follow-up to 
<freebsd-gnats-submit@freebsd.org>, preserving the Subject 
line of this e-mail message. 


http://www.freebsd.org/cgi/query-pr.cgi?pr=20382 

From: alex@big.endian.de (Alexander Langer)
To: venglin@freebsd.lublin.pl
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: kern/20382: Panic when trying to mount non-fixated CD
Date: Sun, 13 Aug 2000 15:42:41 +0200

 > 	Kernel panics, when trying to mount written, but non-fixated CD-ROM.
 
 Similar (probably related error):
 
 kern/19127
 
 Alex
 
 -- 
 cat: /home/alex/.sig: No such file or directory
 

From: Sheldon Hearn <sheldonh@uunet.co.za>
To: alex@big.endian.de (Alexander Langer)
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: kern/20382: Panic when trying to mount non-fixated CD 
Date: Mon, 14 Aug 2000 12:29:15 +0200

 On Sun, 13 Aug 2000 06:50:05 MST, Alexander Langer wrote:
 
 >  > 	Kernel panics, when trying to mount written, but non-fixated CD-ROM.
 >  
 >  Similar (probably related error):
 >  
 >  kern/19127
 
 Your backtrace doesn't include debugging symbols.  I'm pretty sure that
 we could ask Soren to look at this, but I think he'll need a backtrace
 with debugging symbols.
 
 Perhaps you could provide this? :-)
 
 Ciao,
 Sheldon.
 

From: Alexander Langer <alex@big.endian.de>
To: Sheldon Hearn <sheldonh@uunet.co.za>
Cc: freebsd-gnats-submit@FreeBSD.org
Subject: Re: kern/20382: Panic when trying to mount non-fixated CD
Date: Fri, 18 Aug 2000 13:38:19 +0200

 Thus spake Sheldon Hearn (sheldonh@uunet.co.za):
 
 > we could ask Soren to look at this, but I think he'll need a backtrace
 > with debugging symbols.
 > Perhaps you could provide this? :-)
 
 No, I've deleted the dumpfile (I had little hdd space in the
 meanwhile)
 
 OTOH, I don't understand, why it didn't include the debugging symbols,
 since that kernel was build with them and not stripped.
 
 (or was it? :)
 
 Alex
 -- 
 cat: /home/alex/.sig: No such file or directory
 
State-Changed-From-To: feedback->open 
State-Changed-By: sheldonh 
State-Changed-When: Fri Aug 18 04:44:10 PDT 2000 
State-Changed-Why:  
Unfortunately, the originator has already smoked his 
crash dump. 




Responsible-Changed-From-To: freebsd-bugs->sos 
Responsible-Changed-By: sheldonh 
Responsible-Changed-When: Fri Aug 18 04:44:10 PDT 2000 
Responsible-Changed-Why:  
Soren, I can't think of anyone else better able to look 
at this one than you.  If there isn't enough to go on in 
here, you can just close the PR. 

How many blank CD's can you trash? ;-) 

http://www.freebsd.org/cgi/query-pr.cgi?pr=20382 
State-Changed-From-To: open->closed 
State-Changed-By: sos 
State-Changed-When: Tue Nov 14 00:50:49 PST 2000 
State-Changed-Why:  
Some of this is solved in 4.2, the cd9660 filesys code is still 
fragile if you give it bogus filesystems though. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=20382 
>Unformatted:
