From owner-freebsd-bugs@freebsd.org Fri Oct 23 03:14:48 2020 Return-Path: Delivered-To: freebsd-bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id AEB0243A754 for ; Fri, 23 Oct 2020 03:14:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (unknown [127.0.1.3]) by mx1.freebsd.org (Postfix) with ESMTP id 4CHTqX4Dg0z4nFX for ; Fri, 23 Oct 2020 03:14:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 8F58B43A939; Fri, 23 Oct 2020 03:14:48 +0000 (UTC) Delivered-To: bugs@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 8DF6443A6C9 for ; Fri, 23 Oct 2020 03:14:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4CHTqX30VCz4ndy for ; Fri, 23 Oct 2020 03:14:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 489D021344 for ; Fri, 23 Oct 2020 03:14:48 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.5]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id 09N3Emmh086263 for ; Fri, 23 Oct 2020 03:14:48 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 09N3Eml0086262 for bugs@FreeBSD.org; Fri, 23 Oct 2020 03:14:48 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: www set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 250552] [net] [fib] dangling route table entry after destroying interface Date: Fri, 23 Oct 2020 03:14:48 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 12.1-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: zlei.huang@gmail.com X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 23 Oct 2020 03:14:48 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D250552 Bug ID: 250552 Summary: [net] [fib] dangling route table entry after destroying interface Product: Base System Version: 12.1-STABLE Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: zlei.huang@gmail.com I'm testing FreeBSD's multiple FIBs feature. Dangling route table entry rem= ains when deleting ip address from interface after migrating the interface's fib number. It looks weird. This can be reproduced on FreeBSD 12.1 RELEASE-p10 and FreeBSD 12.2 RC2. Steps to repeat:=20 On a system with net.fibs=3D4, Run the following commands: # ifconfig tap0 create fib 1 # ifconfig tap0 inet 192.0.2.1/24 # netstat -rnf inet -F 1 Routing tables (fib: 1) Internet: Destination Gateway Flags Netif Expire 192.0.2.0/24 link#4 U tap0 192.0.2.1 link#4 UHS lo0 # ifconfig tap0 fib 2 # ifconfig tap0 inet 192.0.2.1/24 delete # netstat -rnf inet -F 1 Routing tables (fib: 1) Internet: Destination Gateway Flags Netif Expire 192.0.2.1 link#4 UHS lo0 **** Notice the loopback route table entry 192.0.2.1 remains after deleting address's of tap0. **** # ifconfig tap0 destroy # netstat -rnf inet -F 1 Routing tables (fib: 1) Internet: Destination Gateway Flags Netif Expire 192.0.2.1 link#4 UHS lo0 **** Notice again the loopback route table entry 192.0.2.1 remains after destroying interface tap0. **** --=20 You are receiving this mail because: You are the assignee for the bug.=