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Date: Sat, 26 Jun 2004 13:49:49 +0200 (CEST)
From: Peter Holm <peter@holm.cc>
Reply-To: Peter Holm <peter@holm.cc>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: Fatal trap 12 caused by kern/kern_descrip.c:2351
X-Send-Pr-Version: 3.113
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>Number:         68364
>Category:       kern
>Synopsis:       panic: Fatal trap 12 caused by kern/kern_descrip.c:2351
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jun 26 12:00:45 GMT 2004
>Closed-Date:    Mon Jan 03 19:15:34 GMT 2005
>Last-Modified:  Mon Jan 03 19:15:34 GMT 2005
>Originator:     Peter Holm
>Release:        FreeBSD 5.2-CURRENT i386
>Organization:
>Environment:
System: FreeBSD current.osted.lan 5.2-CURRENT FreeBSD 5.2-CURRENT #0: Sat Jun 26 11:08:45 CEST 2004 pho@peter.osted.lan:/usr/src/sys/i386/compile/PHO i386


	
>Description:
	Panic during kernel stress test with sysctl.
	Details at http://www.holm.cc/stress/log/cons55.html
>How-To-Repeat:
	Run sysctl -a with heavy fork() activity.
>Fix:

	


>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->analyzed 
State-Changed-By: cperciva 
State-Changed-When: Tue Jul 13 12:11:30 GMT 2004 
State-Changed-Why:  
I know what's going on here; I'll deal with this. 



Responsible-Changed-From-To: freebsd-bugs->cperciva 
Responsible-Changed-By: cperciva 
Responsible-Changed-When: Tue Jul 13 12:11:30 GMT 2004 
Responsible-Changed-Why:  
I know what's going on here; I'll deal with this. 


http://www.freebsd.org/cgi/query-pr.cgi?pr=68364 
Responsible-Changed-From-To: cperciva->tjr 
Responsible-Changed-By: cperciva 
Responsible-Changed-When: Tue Jul 13 12:23:14 GMT 2004 
Responsible-Changed-Why:  
tjr is working on the general problem of embryonic processes being in 
allproc; this bug will go away when he fixes that.  Assign the PR to him 
to make sure he doesn't forget to close it. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=68364 

From: Colin Percival <colin.percival@wadham.ox.ac.uk>
To: freebsd-gnats-submit@FreeBSD.org, peter@holm.cc
Cc:  
Subject: Re: kern/68364: Fatal trap 12 caused by  kern/kern_descrip.c:2351
Date: Tue, 13 Jul 2004 05:28:59 -0700

 For the time between now and whenever tjr fixes this properly, the
 following patch should fix this particular panic:
 
 RCS file: /home/ncvs/src/sys/kern/kern_descrip.c,v
 retrieving revision 1.235
 diff -u -p -r1.235 kern_descrip.c
 --- src/sys/kern/kern_descrip.c	19 Jun 2004 11:40:08 -0000	1.235
 +++ src/sys/kern/kern_descrip.c	13 Jul 2004 12:27:37 -0000
 @@ -2343,7 +2343,7 @@ sysctl_kern_file(SYSCTL_HANDLER_ARGS)
  	sx_slock(&allproc_lock);
  	LIST_FOREACH(p, &allproc, p_list) {
  		PROC_LOCK(p);
 -		if (p_cansee(req->td, p) != 0) {
 +		if (p_cansee(req->td, p) != 0 || p->p_state == PRS_NEW) {
  			PROC_UNLOCK(p);
  			continue;
  		}
 
 Colin Percival
 

From: Peter Holm <peter@holm.cc>
To: freebsd-gnats-submit@FreeBSD.org
Cc:  
Subject: Re: kern/68364: panic: Fatal trap 12 caused by kern/kern_descrip.c:2351
Date: Thu, 7 Oct 2004 16:46:14 +0200

 The problem should be fixed by revision 1.245 of kern/kern_descrip.c
 -- 
 Peter Holm
Responsible-Changed-From-To: tjr->freebsd-bugs 
Responsible-Changed-By: tjr 
Responsible-Changed-When: Sun Dec 19 04:24:31 GMT 2004 
Responsible-Changed-Why:  
Unassigned due to lack of time. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=68364 
State-Changed-From-To: analyzed->closed 
State-Changed-By: rwatson 
State-Changed-When: Mon Jan 3 19:13:06 GMT 2005 
State-Changed-Why:  
Closed as this is believed to be fixed.  If it recurs, please let me know. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=68364 
>Unformatted:
