NetBSD Problem Report #41912

From www@NetBSD.org  Fri Aug 21 03:36:12 2009
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Date: Fri, 21 Aug 2009 03:36:11 +0000 (UTC)
From: c81187@gmail.com
Reply-To: c81187@gmail.com
To: gnats-bugs@NetBSD.org
Subject: Kernel panic when adding and activating a link-layer (MAC) address if interface is not down.
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>Number:         41912
>Category:       kern
>Synopsis:       Kernel panic when adding and activating a link-layer (MAC) address if interface is not down.
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Aug 21 03:40:00 +0000 2009
>Last-Modified:  Tue Jun 30 11:50:01 +0000 2020
>Originator:     Charlie
>Release:        5.0.1
>Organization:
N/A
>Environment:
NetBSD blah.wootnet.int 5.0 NetBSD 5.0 (GENERIC) #0: Sun Apr 26 18:50:08 UTC 2009 builds@b6.netbsd.org:/home/builds/ab/netbsd-5-0-RELEASE/i386/200904260229Z-obj/home/builds/ab/netbsd-5-0-RELEASE/src/sys/arch/i386/compile/GENERIC i386
>Description:
When adding a MAC address to an interface it will kernel panic unless that interface was first marked down.

i.e.
ifconfig ne2 link 00:00:00:00:00:00 active
>> Kernel panic

ifconfig ne2 down && ifconfig ne2 link 00:00:00:00:00:00 active
>> Works
>How-To-Repeat:
Add MAC address to interface marked as up.
>Fix:

>Audit-Trail:
From: "Jukka Ruohonen" <jruoho@netbsd.org>
To: gnats-bugs@gnats.NetBSD.org
Cc: 
Subject: PR/41912 CVS commit: src
Date: Tue, 30 Jun 2020 11:48:20 +0000

 Module Name:	src
 Committed By:	jruoho
 Date:		Tue Jun 30 11:48:20 UTC 2020

 Modified Files:
 	src/distrib/sets/lists/tests: mi
 	src/tests/sbin/ifconfig: Makefile
 Added Files:
 	src/tests/sbin/ifconfig: t_repeated_link_addr.sh t_repeated_mtu.sh

 Log Message:
 Add a couple of tests for sequential ifconfig(8) options, incl. PR kern/41912.


 To generate a diff of this commit:
 cvs rdiff -u -r1.863 -r1.864 src/distrib/sets/lists/tests/mi
 cvs rdiff -u -r1.8 -r1.9 src/tests/sbin/ifconfig/Makefile
 cvs rdiff -u -r0 -r1.1 src/tests/sbin/ifconfig/t_repeated_link_addr.sh \
     src/tests/sbin/ifconfig/t_repeated_mtu.sh

 Please note that diffs are not public domain; they are subject to the
 copyright notices on the relevant files.

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