From owner-freebsd-qa@FreeBSD.ORG Sat Apr 8 16:04:23 2006 Return-Path: X-Original-To: freebsd-qa@freebsd.org Delivered-To: freebsd-qa@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0E40C16A403 for ; Sat, 8 Apr 2006 16:04:23 +0000 (UTC) (envelope-from mitchell@cloudynwuk.force9.co.uk) Received: from ptb-relay01.plus.net (ptb-relay01.plus.net [212.159.14.212]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6752643D49 for ; Sat, 8 Apr 2006 16:04:20 +0000 (GMT) (envelope-from mitchell@cloudynwuk.force9.co.uk) Received: from [81.174.213.56] (helo=[81.174.213.56]) by ptb-relay01.plus.net with esmtp (Exim) id 1FSFv9-00019C-4i for freebsd-qa@freebsd.org; Sat, 08 Apr 2006 17:04:20 +0100 Received: from 127.0.0.1 (AVG SMTP 7.1.385 [268.4.0/305]); Sat, 08 Apr 2006 17:04:37 +0100 Message-ID: <000001c65b26$22e29f80$38d5ae51@hal> From: "Frank Mitchell" To: Date: Sat, 8 Apr 2006 16:58:58 +0100 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=iso-8859-1 Subject: msdosfs Daylight Saving Bug X-BeenThere: freebsd-qa@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: FreeBSD Quality Assurance List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 08 Apr 2006 16:04:23 -0000 FreeBSD Home Users could have a problem with shared Windows data if they use Daylight Savings Time. Like Linux, FreeBSD seems to translate Windows Timestamps wrongly. Suppose you need to share data in an Extended Windows partition. I use: mount_msdosfs /dev/ad0s5 /mnt We've just changed from Greenwich Mean Time to British Summer Time. When I examine my Windows Timestamps under FreeBSD, the BST Timestamps are okay, but the GMT Timestamps are listed as one hour earlier. When we change back to Greenwich Mean Time, the GMT Timestamps will get in sync, but the BST Timestamps will turn out one hour later. This can be fixed simply by using one Timezone for both Windows and Unix all year round. Meanwhile it has been known to cause problems for applications which rely on Timestamps to identify different versions of a changing file. Yours Truly: Frank Mitchell -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.385 / Virus Database: 268.4.0/305 - Release Date: 08/04/2006