From owner-freebsd-bugs@freebsd.org Wed Jul 19 10:12:49 2017 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 7A11CC78759 for ; Wed, 19 Jul 2017 10:12:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 61E057467F for ; Wed, 19 Jul 2017 10:12:49 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id v6JACnlp014977 for ; Wed, 19 Jul 2017 10:12:49 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 220830] STABLE/11 (11.1-RC3, with ZFS bootstrap loader r1.1) kernel (GENERIC) panic; integer divide fault, trap number 18, current process 16 (pf purge) Date: Wed, 19 Jul 2017 10:12:49 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 11.0-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: pherman@frenchfries.net X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: cc 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-bugs@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Jul 2017 10:12:49 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D220830 pherman@frenchfries.net changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |pherman@frenchfries.net --- Comment #4 from pherman@frenchfries.net --- Hi, I can reproduce this. This is a divide by zero in sys/netpfil/pf/pf.c=20 pf_purge_thread().=20 https://svnweb.freebsd.org/base/stable/11/sys/netpfil/pf/pf.c?annotate=3D31= 6640#l1446 The V_pf_default_rule.timeout array hasn't been initialized yet. This happens presumably because pf_load() is getting called before pfattach_vnet() (i.e. pf_load_vnet()). Anyone know what determines the or= der, or how to enforce this type of "dependency"? It smells like a race condition, which could be why not everyone can reprod= uce it, but on my hardware it's 100%. I also suspect this has to do with EARLY_AP_STARTUP, because I have yet to see the same panic with EARLY_AP_STARTUP disabled. Still testing. BTW, my kernel config is simple: include GENERIC device carp device pf #nooptions EARLY_AP_STARTUP --=20 You are receiving this mail because: You are the assignee for the bug.=