From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 28 Aug 2001 08:34:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 28 Aug 2001 08:34:36 -0400 Received: from d12lmsgate-2.de.ibm.com ([195.212.91.200]:49353 "EHLO d12lmsgate-2.de.ibm.com") by vger.kernel.org with ESMTP id convert rfc822-to-8bit; Tue, 28 Aug 2001 08:34:23 -0400 Importance: Normal Subject: re: VM: Bad swap entry 0044cb00 To: linux-kernel@vger.kernel.org X-Mailer: Lotus Notes Release 5.0.7 March 21, 2001 Message-ID: From: "Christian Borntraeger" Date: Tue, 28 Aug 2001 10:25:21 +0200 X-MIMETrack: Serialize by Router on D12ML020/12/M/IBM(Release 5.0.6 |December 14, 2000) at 28/08/2001 10:24:30 MIME-Version: 1.0 Content-type: text/plain; charset=iso-8859-1 Content-transfer-encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Hello, I faced the same problem with the VM System on an S/390-System and Kernel 2.4.7 + S/390 patches. As there is hardware ECC-checking it is __definitely__ not a memory problem. I can reproduce the problem If I put load on the system (256 MB RAM, 512 MB SWAP on a file, 3CPUs). To reproduce this behaviour I run a lot of programs which consume all the heap memory. The C++ program uses the new function until the OOM killer is activated. I start several of this programs with nohup prog & This behaviour startet with 2.4.7. With all previous Kernel versions since 2.4.0 there were a kernel BUG messages during this test. The messages changed regularly with every new kernel version, unfortunately we were not able to track this problem down. Kernel 2.2 runs fine. -- Mit freundlichen Grüßen / Best Regards Christian Bornträger IBM Deutschland Entwicklung GmbH eServer SW System Evaluation + Test email: CBORNTRA@de.ibm.com Tel +49 7031-16-3507