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Date:      Fri, 12 Jun 2009 12:03:42 GMT
From:      Olivier BONHOMME <ptitoliv+freebsd@ptitoliv.net>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   misc/135502: Warning message raised by rtfree function in kernel logs
Message-ID:  <200906121203.n5CC3gpG037493@www.freebsd.org>
Resent-Message-ID: <200906121210.n5CCA1eR073864@freefall.freebsd.org>

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>Number:         135502
>Category:       misc
>Synopsis:       Warning message raised by rtfree function in kernel logs
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Jun 12 12:10:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Olivier BONHOMME
>Release:        7.2-RELEASE
>Organization:
>Environment:
FreeBSD ares 7.2-RELEASE FreeBSD 7.2-RELEASE #2: Tue May  5 13:23:38 CEST 2009     root@ares:/usr/obj/usr/src/sys/GENERIC  amd64

>Description:
In a quite randomly way, the following message appears in the kernel logs : 

Jun  3 03:13:52 ares kernel: rtfree: 0xffffff00690753e0 has 2 refs.

This message seems to be enhanced always by the same task because it appears always at the same hour but not every day.

This server has several IPv4 and IPv6 addresses.

Could this behavior be linked to this thread : 

http://lists.freebsd.org/pipermail/freebsd-net/2007-August/015153.html

I checked the source code and the rtfree function in stead of RTFREE_LOCKED version is called.
>How-To-Repeat:
Random behavior => Not easily reproductible
>Fix:
Maybe replacing rtfree by RTFREE_LOCKED as told in the ML thread.

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



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