From owner-freebsd-net@freebsd.org Tue Feb 21 16:18:18 2017 Return-Path: Delivered-To: freebsd-net@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 56DD1CE8578 for ; Tue, 21 Feb 2017 16:18:18 +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 4626E160E for ; Tue, 21 Feb 2017 16:18:18 +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 v1LGIGY6030957 for ; Tue, 21 Feb 2017 16:18:18 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-net@FreeBSD.org Subject: [Bug 213257] Crash in IGB driver with ALTQ Date: Tue, 21 Feb 2017 16:18:16 +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: 10.3-STABLE X-Bugzilla-Keywords: crash, needs-qa X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: freebsd@mcwest.org X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-net@FreeBSD.org X-Bugzilla-Flags: mfc-stable9? mfc-stable10? 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: 2.1.23 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, 21 Feb 2017 16:18:18 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213257 --- Comment #20 from freebsd@mcwest.org --- (In reply to Kenneth D. Merry from comment #19) I hear you about the downtime. My gateway router only has igb(4) interface= s, so I must use ALTQ on the external one. Although I don't need ALTQ on the internal interface, choking it with ALTQ keeps the system stable even with IGB_LEGACY_TX turned on. My original goal when reporting bug #208409 was to resolve the discrepancy between the documented list of interfaces that support ALTQ and the actual = OS behavior which reports ALTQ is not supported on igb(4) in the default configuration. Since ALTQ does work with igb(4) as the documentation state= s, I suggest we expose an additional kernel config option that will allow it to = be enabled separately from ALTQ as a whole, and eliminating the need to modify= the kernel source code. Along with a small note in the man page for altq(4), t= his would resolve the original problem. For example, an option like this: options ALTQ_IGB # Enable ALTQ on igb devices Unlike exposing IGB_LEGACY_TX, this would be implementation-neutral, and eliminate any future confusion over its intent. And when the bugs in the i= gb driver are fixed, it could be easily removed again. --=20 You are receiving this mail because: You are the assignee for the bug.=