From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29751 invoked by alias); 14 Nov 2009 00:14:21 -0000 Received: (qmail 29744 invoked by uid 22791); 14 Nov 2009 00:14:21 -0000 X-SWARE-Spam-Status: No, hits=-2.3 required=5.0 tests=AWL,BAYES_00,SPF_HELO_PASS,SPF_PASS X-Spam-Check-By: sourceware.org Received: from mx3.mail.elte.hu (HELO mx3.mail.elte.hu) (157.181.1.138) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Sat, 14 Nov 2009 00:14:15 +0000 Received: from elvis.elte.hu ([157.181.1.14]) by mx3.mail.elte.hu with esmtp (Exim) id 1N96HM-00026X-I4 from ; Sat, 14 Nov 2009 01:14:12 +0100 Received: by elvis.elte.hu (Postfix, from userid 1004) id 97AE63E22F6; Sat, 14 Nov 2009 01:14:09 +0100 (CET) Date: Sat, 14 Nov 2009 00:14:00 -0000 From: Ingo Molnar To: Roland McGrath Cc: Masami Hiramatsu , lkml , systemtap , DLE Subject: Re: [PATCH -tip 2/3] Add coredump tracepoint Message-ID: <20091114001410.GC24738@elte.hu> References: <20091113225226.15079.90813.stgit@harusame> <20091113225233.15079.41600.stgit@harusame> <20091113233912.192A3100E@magilla.sf.frob.com> <20091114000234.GA24738@elte.hu> <20091114000627.48ED615E8@magilla.sf.frob.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20091114000627.48ED615E8@magilla.sf.frob.com> User-Agent: Mutt/1.5.20 (2009-08-17) Received-SPF: neutral (mx3: 157.181.1.14 is neither permitted nor denied by domain of elte.hu) client-ip=157.181.1.14; envelope-from=mingo@elte.hu; helo=elvis.elte.hu; X-ELTE-SpamScore: -2.0 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-2.0 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.5 -2.0 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] X-IsSubscribed: yes Mailing-List: contact systemtap-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: systemtap-owner@sourceware.org X-SW-Source: 2009-q4/txt/msg00524.txt.bz2 * Roland McGrath wrote: > > Do you know about exact usecases where these tracepoints would be > > utilized? Would be interesting (and relevant) to list them. > > Masami's colleagues do have something in particular in mind, but I'm > not sure whether they intend to use systemtap as part of the > implementation of that or not. Some sort of flexible core dump server perhaps, driven by user-space logic? (vastly more flexible than coredump-filter or coredump ulimits are today) Ingo