From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from rune.pobox.com (rune.pobox.com [208.210.124.79]) by ozlabs.org (Postfix) with ESMTP id 03E62DE02F for ; Fri, 11 Jan 2008 12:27:11 +1100 (EST) Date: Thu, 10 Jan 2008 19:26:41 -0600 From: Nathan Lynch To: Mike Strosaker Subject: Re: [PATCH 1/8] pseries: phyp dump: Docmentation Message-ID: <20080111012641.GX14201@localdomain> References: <4782C026.8080302@austin.ibm.com> <20080109042911.GT14201@localdomain> <3ae3aa420801090731r2e25e42awcae385b448e20b16@mail.gmail.com> <20080109184437.GU14201@localdomain> <3ae3aa420801091833i6cf32616o2a060579be1f3191@mail.gmail.com> <20080110031723.GA22168@lixom.net> <3ae3aa420801092012m5e47cbd7lc7a5f91842074af7@mail.gmail.com> <20080110162120.GA4831@lixom.net> <3ae3aa420801100834r6bd2750eqa7c8d29877350463@mail.gmail.com> <4786923E.9090902@austin.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <4786923E.9090902@austin.ibm.com> Cc: linuxppc-dev@ozlabs.org, lkessler@us.ibm.com, mahuja@us.ibm.com, Olof Johansson , linasvepstas@gmail.com, strosake@us.ibm.com List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Mike Strosaker wrote: > > At the risk of repeating what others have already said, the PHYP-assistance > method provides some advantages that the kexec method cannot: > - Availability of the system for production use before the dump data is > collected. As was mentioned before, some production systems may choose not > to operate with the limited memory initially available after the reboot, > but it sure is nice to provide the option. I'm more concerned that this design encourages the user to resume a workload *which is almost certainly known to result in a system crash* before collection of crash data is complete. Maybe the gamble will pay off most of the time, but I wouldn't want to be working support when it doesn't.