From mboxrd@z Thu Jan 1 00:00:00 1970 From: "SourceForge.net" Subject: [ kvm-Bugs-2487340 ] Possible memory corruption when file > RAM Date: Fri, 09 Jan 2009 11:56:28 +0000 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" To: noreply@sourceforge.net Return-path: Received: from ch3.sourceforge.net ([216.34.181.60]:18377 "EHLO ch3.sourceforge.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752698AbZAIL4a (ORCPT ); Fri, 9 Jan 2009 06:56:30 -0500 Sender: kvm-owner@vger.kernel.org List-ID: Bugs item #2487340, was opened at 2009-01-05 13:39 Message generated for change (Comment added) made by amitshah You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2487340&group_id=180599 Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: None Group: None >Status: Pending Resolution: None Priority: 5 Private: No Submitted By: Jake Muss (jaketmuss) Assigned to: Nobody/Anonymous (nobody) Summary: Possible memory corruption when file > RAM Initial Comment: Host: Debian Lenny AMD64, Intel Q6600 , kvm-82 Guest, Debian Lenny AMD64 I've been having issues with file corruption and I've simplified the issue down to the following: create a 1G file: dd if=/dev/urandom of=1G bs=1G count=1 md5sum the file twice and the results will be different. I've tested this on ext2, ext3, backing device lvm,qcow2,raw If I change the RAM to 2G, I can then correctly md5sum the original file, however if I create a new file that's 2G the issue reappears. The only time the test has not failed was for the first few tests after the odd reboot. ---------------------------------------------------------------------- >Comment By: Amit Shah (amitshah) Date: 2009-01-09 17:26 Message: Which RAM do you mean? Host RAM or guest RAM? ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=893831&aid=2487340&group_id=180599