From owner-freebsd-bugs@FreeBSD.ORG Wed May 23 02:10:16 2012 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 32161106566B for ; Wed, 23 May 2012 02:10:16 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id E4D3D8FC1B for ; Wed, 23 May 2012 02:10:15 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.5/8.14.5) with ESMTP id q4N2AFhx093934 for ; Wed, 23 May 2012 02:10:15 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.5/8.14.5/Submit) id q4N2AFff093933; Wed, 23 May 2012 02:10:15 GMT (envelope-from gnats) Resent-Date: Wed, 23 May 2012 02:10:15 GMT Resent-Message-Id: <201205230210.q4N2AFff093933@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Arnaud Lacombe Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 614211065670 for ; Wed, 23 May 2012 02:03:52 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from red.freebsd.org (red.freebsd.org [IPv6:2001:4f8:fff6::22]) by mx1.freebsd.org (Postfix) with ESMTP id 4B29F8FC18 for ; Wed, 23 May 2012 02:03:52 +0000 (UTC) Received: from red.freebsd.org (localhost [127.0.0.1]) by red.freebsd.org (8.14.4/8.14.4) with ESMTP id q4N23qs6027412 for ; Wed, 23 May 2012 02:03:52 GMT (envelope-from nobody@red.freebsd.org) Received: (from nobody@localhost) by red.freebsd.org (8.14.4/8.14.4/Submit) id q4N23pll027410; Wed, 23 May 2012 02:03:51 GMT (envelope-from nobody) Message-Id: <201205230203.q4N23pll027410@red.freebsd.org> Date: Wed, 23 May 2012 02:03:51 GMT From: Arnaud Lacombe To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/168245: [regression] Permanent ARP entry not deleted on interface configuration failure X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 May 2012 02:10:16 -0000 >Number: 168245 >Category: kern >Synopsis: [regression] Permanent ARP entry not deleted on interface configuration failure >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: Wed May 23 02:10:15 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Arnaud Lacombe >Release: 9.0-RELEASE >Organization: n/a >Environment: >Description: Permanent ARP entry not deleted on interface configuration failure. Older FreeBSD (ie. 7.1) does not show this bug. >How-To-Repeat: # ifconfig vr0 172.31.0.1 # route delete 172.31.0.1 delete host 172.31.0.1 # route delete 172.31.0.0/16 delete net 172.31.0.0 # route add 172.31.0.1 -iface vr1 add host 172.31.0.1: gateway vr1 # ifconfig vr0 delete 172.31.0.1 At this point, only the route to 172.31.0.1 exist, ARP for 172.31.0.1 has been cleared. # ifconfig vr0 172.31.0.1 ifconfig: ioctl (SIOCAIFADDR): File exists The stale route entry cause the configuration to fail, leading to: # ifconfig vr0 vr0: flags=8843 metric 0 mtu 1500 options=8280b ether 00:00:24:cb:f4:90 nd6 options=29 media: Ethernet autoselect (100baseTX ) status: active this is expected, however: # arp -a [...] ? (172.31.0.1) at 00:00:24:cb:f4:90 on vr0 permanent [ethernet] This should have been cleared while returning from the configuration path. >Fix: >Release-Note: >Audit-Trail: >Unformatted: