From owner-freebsd-net@freebsd.org Fri May 3 16:55:57 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 66E0F1595477 for ; Fri, 3 May 2019 16:55:57 +0000 (UTC) (envelope-from wollman@khavrinen.csail.mit.edu) Received: from khavrinen.csail.mit.edu (khavrinen.csail.mit.edu [IPv6:2603:400a:0:7ec::801e:1c14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "khavrinen.csail.mit.edu", Issuer "Client CA" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id E43C0805C0 for ; Fri, 3 May 2019 16:55:55 +0000 (UTC) (envelope-from wollman@khavrinen.csail.mit.edu) Received: from khavrinen.csail.mit.edu (localhost [127.0.0.1]) by khavrinen.csail.mit.edu (8.15.2/8.15.2) with ESMTPS id x43Gts9Z050083 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL CN=khavrinen.csail.mit.edu issuer=Client+20CA) for ; Fri, 3 May 2019 12:55:55 -0400 (EDT) (envelope-from wollman@khavrinen.csail.mit.edu) Received: (from wollman@localhost) by khavrinen.csail.mit.edu (8.15.2/8.15.2/Submit) id x43Gts2Z050082; Fri, 3 May 2019 12:55:54 -0400 (EDT) (envelope-from wollman) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <23756.29338.729453.227593@khavrinen.csail.mit.edu> Date: Fri, 3 May 2019 12:55:54 -0400 From: Garrett Wollman To: freebsd-net@freebsd.org Subject: Disabling 9k jumbo clusters on mce(4) X-Mailer: VM 8.2.0b under 26.1 (amd64-portbld-freebsd11.2) X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (khavrinen.csail.mit.edu [127.0.0.1]); Fri, 03 May 2019 12:55:55 -0400 (EDT) X-Rspamd-Queue-Id: E43C0805C0 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dmarc=pass (policy=none) header.from=csail.mit.edu; spf=pass (mx1.freebsd.org: domain of wollman@khavrinen.csail.mit.edu designates 2603:400a:0:7ec::801e:1c14 as permitted sender) smtp.mailfrom=wollman@khavrinen.csail.mit.edu X-Spamd-Result: default: False [-2.05 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-0.99)[-0.985,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+a]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[text/plain]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; TO_DN_NONE(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-0.999,0]; RCVD_COUNT_THREE(0.00)[3]; RCVD_TLS_LAST(0.00)[]; NEURAL_SPAM_SHORT(0.44)[0.441,0]; MX_GOOD(-0.01)[khavrinen.csail.mit.edu,incoming.csail.mit.edu]; DMARC_POLICY_ALLOW(-0.50)[csail.mit.edu,none]; FORGED_SENDER(0.30)[wollman@csail.mit.edu,wollman@khavrinen.csail.mit.edu]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; FROM_NEQ_ENVFROM(0.00)[wollman@csail.mit.edu, wollman@khavrinen.csail.mit.edu] 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: Fri, 03 May 2019 16:55:57 -0000 Does anyone have an easy patch to keep mce(4) from trying to use 9k jumbo mbuf clusters? I think I went down this road once before but the fix wasn't as obvious as it is for the Intel drivers. (I assume the hardware is not so broken that it requires packets to be stored in contiguous physical memory.) -GAWollman