Date: Sun, 8 Mar 2009 11:49:13 +0100 (CET) From: Ruben van Staveren <ruben@verweg.com> To: FreeBSD-gnats-submit@FreeBSD.org Subject: kern/132404: panic sleeping thread after 25th Feb src/sys/net commits Message-ID: <200903081049.n28AnDuw004729@helium.verweg.com> Resent-Message-ID: <200903081050.n28Ao5WX033930@freefall.freebsd.org>
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>Number: 132404
>Category: kern
>Synopsis: panic sleeping thread after 25th Feb src/sys/net commits
>Confidential: no
>Severity: critical
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Sun Mar 08 10:50:04 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator: Ruben van Staveren
>Release: FreeBSD 7.1-STABLE i386
>Organization:
>Environment:
System: FreeBSD helium.verweg.com 7.1-STABLE FreeBSD 7.1-STABLE #55: Sat Mar 7 20:49:56 CET 2009 root@helium.verweg.com:/usr/obj/usr/cvsup/7-stable/src/sys/HELIUM-SMP i386
>Description:
cvsupping to feb 25th makes the system panic during early boot, somewhere
around the time when /etc/rc.d/ppp and /etc/rc.d/routing is started. After
enabling witness it will panic with a witness_warn
Maybe some of it is related to kern/129846
>How-To-Repeat:
This happens while using IPv6, pf, ppp (during boot to connect ADSL) using the following versions
$FreeBSD: src/sys/net/route.c,v 1.120.2.9 2009/02/25 11:18:18 rwatson Exp $
$FreeBSD: src/sys/net/rtsock.c,v 1.143.2.8 2009/02/25 10:59:56 rwatson Exp $
$FreeBSD: src/sys/net/route.h,v 1.65.2.5 2009/02/25 10:59:56 rwatson Exp $
$FreeBSD: src/sys/netinet6/in6_rmx.c,v 1.18.2.4 2009/02/25 10:59:56 rwatson Exp $
$FreeBSD: src/sys/netinet6/in6_ifattach.c,v 1.39.2.4 2009/02/25 10:59:56 rwatson Exp $
$FreeBSD: src/sys/netinet/in_rmx.c,v 1.57.2.3 2009/02/25 10:59:56 rwatson Exp $
The following textdumps are available:
Without WITNESS enabled (so empty show locks/alllocks)
1. http://ruben.is.verweg.com/stuff/freebsd/panic-sleepable-thread-textdump.tar.301
After enabling WITNESS and WITNESS_KDB
2. http://ruben.is.verweg.com/stuff/freebsd/witness_checkorder-textdump.tar.302
After setting debug.witness.kdb=0, to get the actual panic again
3. http://ruben.is.verweg.com/stuff/freebsd/panic-witness_warn-textdump.tar.303
>Fix:
Backing out those changes prevents the system from panicing
These revisions are safe
$FreeBSD: src/sys/net/route.c,v 1.120.2.7 2008/11/06 22:11:57 julian Exp $
$FreeBSD: src/sys/net/rtsock.c,v 1.143.2.7 2009/02/18 20:12:08 jamie Exp $
$FreeBSD: src/sys/net/route.h,v 1.65.2.4 2008/11/06 22:11:57 julian Exp $
$FreeBSD: src/sys/netinet6/in6_rmx.c,v 1.18.2.3 2008/09/01 19:23:04 obrien Exp $
$FreeBSD: src/sys/netinet6/in6_ifattach.c,v 1.39.2.3 2008/09/01 19:23:04 obrien Exp $
$FreeBSD: src/sys/netinet/in_rmx.c,v 1.57.2.2 2008/11/06 22:11:57 julian Exp $
>Release-Note:
>Audit-Trail:
>Unformatted:
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