From owner-freebsd-amd64@FreeBSD.ORG Thu Mar 31 13:48:42 2005 Return-Path: Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id EBA5816A4D0 for ; Thu, 31 Mar 2005 13:48:42 +0000 (GMT) Received: from yertle.kcilink.com (yertle.kcilink.com [65.205.34.180]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9F0D743D68 for ; Thu, 31 Mar 2005 13:48:42 +0000 (GMT) (envelope-from vivek@khera.org) Received: from [192.168.1.4] (pcp04418836pcs.nrockv01.md.comcast.net [69.140.110.248]) by yertle.kcilink.com (Postfix) with ESMTP id 46F0FB80C for ; Thu, 31 Mar 2005 08:48:42 -0500 (EST) Mime-Version: 1.0 (Apple Message framework v619.2) In-Reply-To: References: Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <3f9aa5aef19c41837cce1563e2c97a21@khera.org> Content-Transfer-Encoding: 7bit From: Vivek Khera Date: Thu, 31 Mar 2005 08:48:44 -0500 To: freebsd-amd64@freebsd.org X-Mailer: Apple Mail (2.619.2) Subject: Re: Tyan k8sr lockups X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 31 Mar 2005 13:48:43 -0000 On Mar 29, 2005, at 7:39 PM, Sten Spans wrote: > - Have you tried using other network cards ? > Someone over in stable@ list suggested this: btw, i turn "debug.mpsafenet=0" in /boot/loader.conf to evade the possible network stack deadlock under SMP. in the thread "FreeBSD 5.3 SMP freezes with MySQL 4.1" the last few days. Does this claim of possible network deadlock have any real merit? If so, is it still the case in 5.4-PRE? If I try the above tunable, am I gonna kill some performance? Thanks.