From owner-freebsd-bugs@freebsd.org Thu Mar 28 22:35:10 2019 Return-Path: Delivered-To: freebsd-bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id C2B6B154D34F for ; Thu, 28 Mar 2019 22:35:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 5A9C88F802 for ; Thu, 28 Mar 2019 22:35:10 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 18292154D34E; Thu, 28 Mar 2019 22:35:10 +0000 (UTC) Delivered-To: bugs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 02650154D34D for ; Thu, 28 Mar 2019 22:35:09 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mxrelay.ysv.freebsd.org (mxrelay.ysv.freebsd.org [IPv6:2001:1900:2254:206a::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.ysv.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 84C6E8F800 for ; Thu, 28 Mar 2019 22:35:09 +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 mxrelay.ysv.freebsd.org (Postfix) with ESMTPS id ABA1C74F4 for ; Thu, 28 Mar 2019 22:35:08 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id x2SMZ82c013256 for ; Thu, 28 Mar 2019 22:35:08 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x2SMZ8Oq013253 for bugs@FreeBSD.org; Thu, 28 Mar 2019 22:35:08 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 236846] FreeBSD 12.0-STABLE-p3 r345567: panic: vm_fault_hold: fault on nofault entry Date: Thu, 28 Mar 2019 22:35:03 +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: 12.0-RELEASE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: ietf-dane@dukhovni.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: 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: 2.1.29 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 28 Mar 2019 22:35:11 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D236846 --- Comment #2 from Viktor Dukhovni --- With fantastic help from Mark Johnston, the issue has been plausibly narrow= ed down to the new epoch_tracker code in 12.0 not handling IPv6 via stf0 robus= tly. The crash dump with "option INVARIANTS" looks like: panic: Assertion etd->et_td =3D=3D (struct thread *)td failed at /usr/src/sys/sys/epoch_private.h:178 cpuid =3D 7 time =3D 1553806077 KDB: stack backtrace: #0 0xffffffff80bbb047 at kdb_backtrace+0x67 #1 0xffffffff80b737c3 at vpanic+0x1a3 #2 0xffffffff80b735a3 at panic+0x43 #3 0xffffffff80c68357 at epoch_exit_preempt+0x1e7 #4 0xffffffff80c6b35d at if_addr_runlock+0x1d #5 0xffffffff82e33b67 at stf_getsrcifa6+0x1a7 #6 0xffffffff82e33488 at stf_output+0x48 #7 0xffffffff80dc356f at ip6_output+0x1daf #8 0xffffffff80d85d74 at tcp_output+0x1be4 #9 0xffffffff80d97739 at tcp_usr_disconnect+0x69 #10 0xffffffff80c07eec at soclose+0x9c #11 0xffffffff80b1d86a at _fdrop+0x1a #12 0xffffffff80b20abc at closef+0x1ec #13 0xffffffff80b1dea0 at closefp+0xa0 #14 0xffffffff8103ca58 at amd64_syscall+0x278 #15 0xffffffff8101589d at fast_syscall_common+0x101 I am now testing a work-around patch... --=20 You are receiving this mail because: You are the assignee for the bug.=