From owner-freebsd-net@freebsd.org Wed Feb 27 23:15:40 2019 Return-Path: Delivered-To: freebsd-net@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 6558015085E5 for ; Wed, 27 Feb 2019 23:15:40 +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 EEE7D956E5 for ; Wed, 27 Feb 2019 23:15:39 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id A542A15085E4; Wed, 27 Feb 2019 23:15:39 +0000 (UTC) Delivered-To: net@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 66DF515085E3 for ; Wed, 27 Feb 2019 23:15:39 +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 EA4CA956DF for ; Wed, 27 Feb 2019 23:15:38 +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 36FE7103C2 for ; Wed, 27 Feb 2019 23:15:38 +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 x1RNFcFe040865 for ; Wed, 27 Feb 2019 23:15:38 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from www@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id x1RNFcEq040864 for net@FreeBSD.org; Wed, 27 Feb 2019 23:15:38 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 234026] [panic] [dummynet] Repeatable panic in dummynet due to locking issues and use-after-free Date: Wed, 27 Feb 2019 23:15:37 +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: 11.2-STABLE X-Bugzilla-Keywords: crash X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: noresponse@yandex.ru X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: net@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-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Feb 2019 23:15:40 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234026 Stanislav Trofimov changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |noresponse@yandex.ru --- Comment #1 from Stanislav Trofimov --- Hi Same problem on FreeBSD 12.0-RELEASE-p3 GENERIC Fatal trap 12: page fault while in kernel mode cpuid =3D 0; apic id =3D 00 fault virtual address =3D 0x0 fault code =3D supervisor read instruction, page not present instruction pointer =3D 0x20:0x0 stack pointer =3D 0x28:0xfffffe003ee448d0 frame pointer =3D 0x28:0xfffffe003ee44950 code segment =3D base 0x0, limit 0xfffff, type 0x1b =3D DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags =3D interrupt enabled, resume, IOPL =3D 0 current process =3D 0 (dummynet) trap number =3D 12 panic: page fault cpuid =3D 0 time =3D 1551299285 KDB: stack backtrace: #0 0xffffffff80be7977 at kdb_backtrace+0x67 #1 0xffffffff80b9b563 at vpanic+0x1a3 #2 0xffffffff80b9b3b3 at panic+0x43 #3 0xffffffff8107496f at trap_fatal+0x35f #4 0xffffffff810749c9 at trap_pfault+0x49 #5 0xffffffff81073fee at trap+0x29e #6 0xffffffff8104f435 at calltrap+0x8 #7 0xffffffff80d26cdd at ip_input+0x45d #8 0xffffffff80cbc576 at netisr_dispatch_src+0xd6 #9 0xffffffff82e6ea1e at dummynet_send+0x1ae #10 0xffffffff82e6e3af at dummynet_task+0x2ef #11 0xffffffff80bf9cb4 at taskqueue_run_locked+0x154 #12 0xffffffff80bfae18 at taskqueue_thread_loop+0x98 #13 0xffffffff80b5bf33 at fork_exit+0x83 --=20 You are receiving this mail because: You are the assignee for the bug.=