From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262423AbTH3Dqx (ORCPT ); Fri, 29 Aug 2003 23:46:53 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262396AbTH3Dqx (ORCPT ); Fri, 29 Aug 2003 23:46:53 -0400 Received: from mail.vtc.edu.hk ([202.75.80.229]:61484 "EHLO pandora.vtc.edu.hk") by vger.kernel.org with ESMTP id S262423AbTH3Dql (ORCPT ); Fri, 29 Aug 2003 23:46:41 -0400 Message-ID: <3F501E13.DFFBE6B2@vtc.edu.hk> Date: Sat, 30 Aug 2003 11:46:27 +0800 From: Nick Urbanik Organization: Institute of Vocational Education (Tsing Yi) X-Mailer: Mozilla 4.8 [en] (X11; U; Linux 2.4.22 i686) X-Accept-Language: en MIME-Version: 1.0 To: Alan Cox CC: Linux Kernel Mailing List Subject: Re: Single P4, many IDE PCI cards == trouble?? References: <3F4EA30C.CEA49F2F@vtc.edu.hk> <1062150643.26753.4.camel@dhcp23.swansea.linux.org.uk> <3F4F5C9A.5BAA1542@vtc.edu.hk> <1062167896.27561.4.camel@dhcp23.swansea.linux.org.uk> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Junkmail-Whitelist: YES (by domain whitelist at pandora.vtc.edu.hk) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Dear Folks, Alan Cox wrote: > On Gwe, 2003-08-29 at 15:00, Nick Urbanik wrote: > > Is there _anyone_ who is using a number of ATA133 IDE disks (>=6), each on > > its own IDE channel, on a number of PCI IDE cards, and doing so > > The most I know of is 8, and that was one of the people who found the > shared IRQ/IDE race cases that 2.4.21 or so fixed. Do you know what chipsets they were using? I would love to know! Any success stories, anyone? > > > A freeze in an IRQ handler would cause that kind of thing, turning on > > > the NMI watchdog might get you a trace in such a failure case - and > > > that would help. > > > > If the NMI count is positive in /proc/interrupts, and I have nmi_watchdog=2 > > in /proc/cmdline, does that mean that the NMI watchdog is turned on? If > > nmi watchdog trigger failure would indicate hardware problems in just > about any situation I can imagine. The nmi is just that -not maskable- > by software. Yes, that's what I thought. But I've replaced every piece of hardware in the machine except the motherboard. If the problem persists after the 3ware 7506-8 is finally installed at considerable expense, then I'll buy an Intel motherboard. Does the kernel work well with the chipset on the Intel S875WP1-E? I guess I would disable the Promise PDC20319 IDE and stick with the 3ware. It's just that I am trying to set up servers that use cheap storage at the college and teach students to build them. It looks like we still have to pay big bucks for SCSI and 3ware. And that part of my teaching will be replaced with something else. Until I understand the problem and how to solve it. -- Nick Urbanik RHCE nicku(at)vtc.edu.hk Dept. of Information & Communications Technology Hong Kong Institute of Vocational Education (Tsing Yi) Tel: (852) 2436 8576, (852) 2436 8713 Fax: (852) 2436 8526 PGP: 53 B6 6D 73 52 EE 1F EE EC F8 21 98 45 1C 23 7B ID: 7529555D GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24