From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 15560 invoked by alias); 18 May 2009 07:25:37 -0000 Received: (qmail 15548 invoked by uid 22791); 18 May 2009 07:25:35 -0000 X-SWARE-Spam-Status: No, hits=-2.3 required=5.0 tests=AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from one.firstfloor.org (HELO one.firstfloor.org) (213.235.205.2) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 18 May 2009 07:25:29 +0000 Received: from basil.firstfloor.org (p5B3CB42E.dip0.t-ipconnect.de [91.60.180.46]) by one.firstfloor.org (Postfix) with ESMTP id 63F4C1AB0002; Mon, 18 May 2009 09:31:11 +0200 (CEST) Received: by basil.firstfloor.org (Postfix, from userid 1000) id D59331D0286; Mon, 18 May 2009 09:25:21 +0200 (CEST) To: psmith@gnu.org Cc: gdb@sourceware.org Subject: Re: Partial cores using Linux "pipe" core_pattern From: Andi Kleen References: <1242609756.2800.135.camel@homebase.localnet> Date: Mon, 18 May 2009 07:25:00 -0000 In-Reply-To: <1242609756.2800.135.camel@homebase.localnet> (Paul Smith's message of "Sun, 17 May 2009 21:22:36 -0400") Message-ID: <87ab5aq3dq.fsf@basil.nowhere.org> User-Agent: Gnus/5.1008 (Gnus v5.10.8) Emacs/22.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org X-SW-Source: 2009-05/txt/msg00112.txt.bz2 Paul Smith writes: > > Does anyone have any thoughts about where I can look next to try to > figure out what's going on? Ideas or knowledge about limitations of the > kernel's core_pattern pipe capability, such as timing issues etc., that > might be leaving me with short cores? Sounds more like a kernel problem to me. It would be good if you could find out in what way the cores are truncated, then do a proper kernel bug report. Or add printks to the kernel coredumper and try to figure out this way where/why it stops. -Andi -- ak@linux.intel.com -- Speaking for myself only.