From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out-no.shaw.ca (smtp-out-no.shaw.ca [64.59.134.12]) by sourceware.org (Postfix) with ESMTPS id 8D11E394C01A for ; Thu, 29 Apr 2021 16:04:38 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 8D11E394C01A Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=SystematicSw.ab.ca Authentication-Results: sourceware.org; spf=none smtp.mailfrom=brian.inglis@systematicsw.ab.ca Received: from [192.168.1.104] ([68.147.0.90]) by shaw.ca with ESMTP id c99Xl3FXyMrQqc99YlFHoR; Thu, 29 Apr 2021 10:04:36 -0600 X-Authority-Analysis: v=2.4 cv=Nv6yz+RJ c=1 sm=1 tr=0 ts=608ad914 a=T+ovY1NZ+FAi/xYICV7Bgg==:117 a=T+ovY1NZ+FAi/xYICV7Bgg==:17 a=JMlwWtpi4oG9xg3K:21 a=IkcTkHD0fZMA:10 a=Ro-zfTxTAAAA:20 a=uYT-Tk0qkVT609LjNaIA:9 a=QEXdDO2ut3YA:10 a=lcZYGsl-DWyJYuAOizVJ:22 a=nhBiZLy9dCYQrwyDy6gO:22 Reply-To: Brian.Inglis@SystematicSw.ab.ca Subject: Re: how about little improve "stat" function for virtual cloned drisk on windows ? To: cygwin@cygwin.com References: From: Brian Inglis Organization: Systematic Software Message-ID: <2f399a0f-6715-1e27-223c-397d7b0d590f@SystematicSw.ab.ca> Date: Thu, 29 Apr 2021 10:04:35 -0600 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-CA Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4xfO65BO4FBm+AUNIi8iXr/yMVP+PDf0wJehwq1jIpjREgbFokehhWcMYph5P5GVy8x5FNE5qT3Sgqs1wg+NY88U0GpeMGklWeBH/DTBh+rkZ/ZQIwWXAz HFyuXqJECD/GIANuTIviLhqAo5Ca9bR4dLf3V/JyCq6UVVpc5ol3xQutVMvQxnzkZnjXLu8h/lXwhky6rBYbr4xzpCTBCiWoV3M= X-Spam-Status: No, score=0.5 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, NICE_REPLY_A, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=no autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 29 Apr 2021 16:04:40 -0000 On 2021-04-29 09:29, dreverser--- via Cygwin wrote: > hello, i have issue for using stat for virtual cloned disk on windows/vmware > st_dev give me the the same serial number > and diff util doest work, because thinking path the same and there are > no files for diff > > iam propose improve winsup\cygwin\mount.c > by add disk letter to st_dev > > at this line > https://github.com/cygwin/cygwin/blob/367c1ae16185e7a81aea5bcc2388e4a7a473c92e/winsup/cygwin/mount.cc#L266 > > sernum = ffvi_buf.ffvi.VolumeSerialNumber; > > after add disk letter to sernum > stat will give more unique st_dev > and as less diff will work To provide more information, please run and post results of commands below: e.g. $ head /proc/version CYGWIN_NT-10.0-19042 version 3.2.0-340.x86_64 (corinna@calimero) (gcc version 9.3.0 20200312 (Fedora Cygwin 9.3.0-1) (GCC) ) 2021-03-29 08:42 UTC $ stat /proc/cygdrive/? File: /proc/cygdrive/c Size: 0 Blocks: 8 IO Block: 65536 directory Device: ee454341h/3997516609d Inode: 1407374883553285 Links: 1 Access: (0050/d---r-x---) Uid: (328384/NT SERVICE+TrustedInstaller) Gid: (328384/NT SERVICE+TrustedInstaller) Access: 2021-04-29 10:00:59.850885200 -0600 Modify: 2021-04-24 21:37:53.292164400 -0600 Change: 2021-04-24 21:37:53.292164400 -0600 Birth: 2019-03-18 22:37:21.986161300 -0600 File: /proc/cygdrive/d Size: 0 Blocks: 8 IO Block: 65536 directory Device: 6b8d438h/112776248d Inode: 1407374883553285 Links: 1 Access: (0050/d---r-x---) Uid: (328384/NT SERVICE+TrustedInstaller) Gid: (328384/NT SERVICE+TrustedInstaller) Access: 2021-04-24 15:14:10.005696600 -0600 Modify: 2021-04-24 15:14:10.005696600 -0600 Change: 2021-04-24 15:14:10.005696600 -0600 Birth: 2009-07-13 20:38:56.526817600 -0600 -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in binary units and prefixes, physical quantities in SI.]