From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 3 Nov 2002 21:40:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 3 Nov 2002 21:40:16 -0500 Received: from siaar2aa.compuserve.com ([149.174.40.137]:12863 "EHLO siaar2aa.compuserve.com") by vger.kernel.org with ESMTP id ; Sun, 3 Nov 2002 21:40:15 -0500 Message-ID: <3DC5DF14.34483A96@compuserve.com> Date: Sun, 03 Nov 2002 18:44:37 -0800 From: Jennie Haywood X-Mailer: Mozilla 4.61 [en] (WinNT; U) X-Accept-Language: en MIME-Version: 1.0 To: Bill Davidsen CC: Alan Cox , Linus Torvalds , Chris Friesen , "Matt D. Robinson" , Rusty Russell , Linux Kernel Mailing List , lkcd-general@lists.sourceforge.net, lkcd-devel@lists.sourceforge.net Subject: Re: [lkcd-general] Re: What's left over. References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Bill Davidsen wrote: > > On 1 Nov 2002, Alan Cox wrote: > > > On Fri, 2002-11-01 at 06:34, Bill Davidsen wrote: > > > From the standpoint of just the driver that's true. However, the remote > > > machine and all the network bits between them are a string of single > > > points of failure. Isn't it good that both disk and network can be > > > supported. > > > The AIX support has a group just to beat on dumps customers send. What > more evidence is needed that people can and do use the capability. > AIX has 4 people doing dumps in Austin (otherwise known as ZTRANS). There are others in other countries. The folks from other countries were brought to Austin for training (usually for 3 months). There is usually one person in L3 doing dumps in Austin for service, although every subsystem has someone that specializes in reading dumps for that subsystem. The first 4 people only do a scan of the dump to see if it's a known problem. If it's not a known problem AND it's in AIX code it goes to whoever it is that owns that subsystem. Dumps are only the beginning with AIX. Trace hooks along with dumps are VERY useful. The trace hooks are also what the performance people use. The Linux kernel is _extremely_ painful to debug compared to AIX. -- Jennie Haywood jehaywood@compuserve.com Everyone is crazy. It's just a matter of degree. jehaywood@yahoo.com - The oak tree in your backyard is just a nut that held its ground.