From owner-freebsd-testing@freebsd.org Sat Sep 12 12:46:21 2020 Return-Path: Delivered-To: freebsd-testing@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 290B83D7485 for ; Sat, 12 Sep 2020 12:46:21 +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 4BpXRx0LY2z3fpf for ; Sat, 12 Sep 2020 12:46:21 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.nyi.freebsd.org (Postfix) id 09FB33D6DCE; Sat, 12 Sep 2020 12:46:21 +0000 (UTC) Delivered-To: testing@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 09BEC3D72D0 for ; Sat, 12 Sep 2020 12:46:21 +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 4BpXRw6TtHz3g3M for ; Sat, 12 Sep 2020 12:46:20 +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 C240F1561D for ; Sat, 12 Sep 2020 12:46:20 +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 08CCkKfm079657 for ; Sat, 12 Sep 2020 12:46:20 GMT (envelope-from bugzilla-noreply@freebsd.org) Received: (from bugzilla@localhost) by kenobi.freebsd.org (8.15.2/8.15.2/Submit) id 08CCkKjx079656 for testing@FreeBSD.org; Sat, 12 Sep 2020 12:46:20 GMT (envelope-from bugzilla-noreply@freebsd.org) X-Authentication-Warning: kenobi.freebsd.org: bugzilla set sender to bugzilla-noreply@freebsd.org using -f From: bugzilla-noreply@freebsd.org To: testing@FreeBSD.org Subject: [Bug 244703] sys.netpfil.pf.nat.exhaust panics kernel Date: Sat, 12 Sep 2020 12:46:20 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: tests X-Bugzilla-Version: CURRENT X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: commit-hook@FreeBSD.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: testing@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-testing@freebsd.org X-Mailman-Version: 2.1.33 Precedence: list List-Id: Testing on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 12 Sep 2020 12:46:21 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D244703 --- Comment #8 from commit-hook@FreeBSD.org --- A commit references this bug: Author: kp Date: Sat Sep 12 12:45:32 UTC 2020 New revision: 365659 URL: https://svnweb.freebsd.org/changeset/base/365659 Log: MFC r365457: net: mitigate vnet / epair cleanup races There's a race where dying vnets move their interfaces back to their orig= inal vnet, and if_epair cleanup (where deleting one interface also deletes the other end of the epair). This is commonly triggered by the pf tests, but also by cleanup of vnet jails. As we've not yet been able to fix the root cause of the issue work around= the panic by not dereferencing a NULL softc in epair_qflush() and by not re-attaching DYING interfaces. This isn't a full fix, but makes a very common panic far less likely. PR: 244703, 238870 Changes: _U stable/12/ stable/12/sys/net/if.c stable/12/sys/net/if_epair.c --=20 You are receiving this mail because: You are the assignee for the bug.=