Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S268565AbUIXIQB (ORCPT ); Fri, 24 Sep 2004 04:16:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S268553AbUIXIQA (ORCPT ); Fri, 24 Sep 2004 04:16:00 -0400 Received: from host213-160-108-25.dsl.vispa.com ([213.160.108.25]:41417 "EHLO cenedra.walrond.org") by vger.kernel.org with ESMTP id S268565AbUIXIPh (ORCPT ); Fri, 24 Sep 2004 04:15:37 -0400 From: Andrew Walrond To: linux-kernel@vger.kernel.org Subject: Re: lost memory on a 4GB amd64 Date: Fri, 24 Sep 2004 09:15:34 +0100 User-Agent: KMail/1.7 Cc: Sergei Haller References: In-Reply-To: MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Message-Id: <200409240915.34471.andrew@walrond.org> X-Spam-Score: 0.0 (/) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1797 Lines: 57 On Monday 20 Sep 2004 11:26, Sergei Haller wrote: > > fang ~sergei> ./memtest 1000000000 > allocate 1000000000: ok > > Message from syslogd@fang at Mon Sep 20 18:03:16 2004 ... > fang kernel: Oops: 0000 [1] PREEMPT SMP > Works fine on my 4Gb Tyan thunder K8W machine, even running from an xterm: andrew@orac ~ $ uname -a Linux orac.walrond.org 2.6.8.1 #3 SMP Sun Aug 29 17:36:49 BST 2004 x86_64 unknown unknown GNU/Linux andrew@orac ~ $ free -m total used free shared buffers cached Mem: 4008 263 3744 0 0 66 -/+ buffers/cache: 195 3812 Swap: 3827 25 3802 andrew@orac ~ $ ./memtest 1000000000 allocate 1000000000: ok set them to 0... done andrew@orac ~ $ ./memtest 4000000000 allocate 4000000000: ok set them to 0... done andrew@orac ~ $ ./memtest 5000000000 allocate 5000000000: ok set them to 0... done andrew@orac ~ $ The last one took a while (using 1Gb swap) but it still worked fine. Without swap: andrew@orac ~ $ sudo swapoff -a andrew@orac ~ $ free -m total used free shared buffers cached Mem: 4008 237 3770 0 1 54 -/+ buffers/cache: 181 3826 Swap: 0 0 0 andrew@orac ~ $ ./memtest 1000000000 allocate 1000000000: ok set them to 0... done andrew@orac ~ $ ./memtest 2000000000 allocate 2000000000: ok set them to 0... done andrew@orac ~ $ Still fine. Andrew Walrond - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/