From owner-freebsd-bugs@freebsd.org Mon Jan 13 14:14:11 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 972D1224F71 for ; Mon, 13 Jan 2020 14:14:11 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.nyi.freebsd.org (mailman.nyi.freebsd.org [IPv6:2610:1c1:1:606c::50:13]) by mx1.freebsd.org (Postfix) with ESMTP id 47xFvR3ZX2z4XQd for ; Mon, 13 Jan 2020 14:14:11 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 78E62224F70; Mon, 13 Jan 2020 14:14:11 +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 78AB9224F6F for ; Mon, 13 Jan 2020 14:14:11 +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) server-signature RSA-PSS (4096 bits) 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 47xFvR2h4gz4XQb for ; Mon, 13 Jan 2020 14:14:11 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2610:1c1:1:606c::50:1d]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 3EC9A5DC7 for ; Mon, 13 Jan 2020 14:14:11 +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 00DEEBrJ011949 for ; Mon, 13 Jan 2020 14:14:11 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 00DEEBZ0011948 for bugs@FreeBSD.org; Mon, 13 Jan 2020 14:14:11 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 243319] Panicked laptop & local network ARP flood Date: Mon, 13 Jan 2020 14:14:11 +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: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: kevans@freebsd.org 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: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 13 Jan 2020 14:14:11 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D243319 Bug ID: 243319 Summary: Panicked laptop & local network ARP flood Product: Base System Version: CURRENT Hardware: Any OS: Any Status: New Severity: Affects Only Me Priority: --- Component: kern Assignee: bugs@FreeBSD.org Reporter: kevans@freebsd.org Hi, Running on an X220 with em0 (Intel 82579LM), laptop panicking results in an absolute flood of ARP requests: 07:55:53.025687 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025708 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025729 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025750 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025783 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025825 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025850 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025872 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025894 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025915 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025937 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.025959 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.025980 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.026001 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.026022 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 07:55:53.026044 ARP, Request who-has 10.6.112.1 tell 10.6.112.16, length 46 07:55:53.026065 ARP, Request who-has 10.6.112.1 tell 10.6.112.18, length 46 root@gemini:~# tcpdump -r re0.pcap | grep -i 'arp, request' | grep '7:55:53= ' | wc -l reading from file re0.pcap, link-type EN10MB (Ethernet) 17424 17,000 in that particular second alone; all of the boxes on the local netwo= rk segment end up with networking hosed until I reboot/remove the offending laptop. --=20 You are receiving this mail because: You are the assignee for the bug.=