From owner-freebsd-net@freebsd.org Tue Jun 9 15:15:05 2020 Return-Path: Delivered-To: freebsd-net@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 0427D32FDFE for ; Tue, 9 Jun 2020 15:15:05 +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 49hDFN6MmVz3YV4 for ; Tue, 9 Jun 2020 15:15:04 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id DAA3632FDFD; Tue, 9 Jun 2020 15:15:04 +0000 (UTC) Delivered-To: net@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 DA6F63302B8 for ; Tue, 9 Jun 2020 15:15:04 +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 49hDFN5YLPz3YJX for ; Tue, 9 Jun 2020 15:15:04 +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 BA1D6178F2 for ; Tue, 9 Jun 2020 15:15:04 +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 059FF4DZ001367 for ; Tue, 9 Jun 2020 15:15:04 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 059FF47i001365 for net@FreeBSD.org; Tue, 9 Jun 2020 15:15:04 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: net@FreeBSD.org Subject: [Bug 246951] carp(4): Active CARP member crashes: panic, trap_pfault, ip_input || ip_output when using ipSec, AES-NI (on Intel I350) Date: Tue, 09 Jun 2020 15:15:00 +0000 X-Bugzilla-Reason: AssignedTo CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.3-STABLE X-Bugzilla-Keywords: crash, needs-qa, regression X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: markj@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@FreeBSD.org X-Bugzilla-Flags: mfc-stable12? mfc-stable11? X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: 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-net@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 09 Jun 2020 15:15:05 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D246951 --- Comment #10 from Mark Johnston --- (In reply to freebsd-bugzilla from comment #9) So from the panic sites it looks like a linked ifaddr structure has been fr= eed. (Or zeroed, but I cannot see any code which does that.) One possible cause that we can try to rule out is a refcount overflow. You said that the upti= me between panics is at least several days - is that consistently the case? In other words, have you ever seen back-to-back crashes in a short timeframe? I'm not sure if pfsense enables DTrace, but if so we can try to probe ifa_ref(), which is helpfully not inlined. Please try this command (you mi= ght need to kldload dtraceall first): # dtrace -n 'fbt::ifa_ref:entry {@[args[0]->ifa_refcnt] =3D count();} tick-= 300s {exit(0);}' It will sleep for 300s and dump a table of reference counts. --=20 You are receiving this mail because: You are the assignee for the bug. You are on the CC list for the bug.=