From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7B190C433ED for ; Fri, 7 May 2021 08:36:39 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DEA4761042 for ; Fri, 7 May 2021 08:36:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DEA4761042 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=bugs.launchpad.net Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:60630 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1levyP-0002kl-RJ for qemu-devel@archiver.kernel.org; Fri, 07 May 2021 04:36:37 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:34294) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1levtB-0006L6-Or for qemu-devel@nongnu.org; Fri, 07 May 2021 04:31:13 -0400 Received: from indium.canonical.com ([91.189.90.7]:36164) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1levt6-0007nc-0s for qemu-devel@nongnu.org; Fri, 07 May 2021 04:31:13 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.93 #5 (Debian)) id 1levt3-00012U-12 for ; Fri, 07 May 2021 08:31:05 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id EB7422E8225 for ; Fri, 7 May 2021 08:30:58 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Fri, 07 May 2021 08:21:51 -0000 From: Thomas Huth <1889033@bugs.launchpad.net> To: qemu-devel@nongnu.org X-Launchpad-Notification-Type: bug X-Launchpad-Bug: product=qemu; status=Incomplete; importance=Undecided; assignee=None; X-Launchpad-Bug-Information-Type: Public X-Launchpad-Bug-Private: no X-Launchpad-Bug-Security-Vulnerability: no X-Launchpad-Bug-Commenters: hgkamath th-huth X-Launchpad-Bug-Reporter: Hgkamath (hgkamath) X-Launchpad-Bug-Modifier: Thomas Huth (th-huth) References: <159582569332.29849.16382151377697591855.malonedeb@chaenomeles.canonical.com> Message-Id: <162037571173.14639.11682313237401890354.malone@soybean.canonical.com> Subject: [Bug 1889033] Re: qemu-img permission denied on vmdk creation on CIFS share X-Launchpad-Message-Rationale: Subscriber (QEMU) @qemu-devel-ml X-Launchpad-Message-For: qemu-devel-ml Precedence: bulk X-Generated-By: Launchpad (canonical.com); Revision="d6ba96cccb3d3e356754af3137c6128a6c17e2a8"; Instance="production" X-Launchpad-Hash: 9ba050cf2541cbbbc7f5f61536e2f82298360679 Received-SPF: none client-ip=91.189.90.7; envelope-from=bounces@canonical.com; helo=indium.canonical.com X-Spam_score_int: -65 X-Spam_score: -6.6 X-Spam_bar: ------ X-Spam_report: (-6.6 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.248, RCVD_IN_DNSWL_HI=-5, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Bug 1889033 <1889033@bugs.launchpad.net> Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The QEMU project is currently moving its bug tracking to another system. For this we need to know which bugs are still valid and which could be closed already. Thus we are setting the bug state to "Incomplete" now. If the bug has already been fixed in the latest upstream version of QEMU, then please close this ticket as "Fix released". If it is not fixed yet and you think that this bug report here is still valid, then you have two options: 1) If you already have an account on gitlab.com, please open a new ticket for this problem in our new tracker here: https://gitlab.com/qemu-project/qemu/-/issues and then close this ticket here on Launchpad (or let it expire auto- matically after 60 days). Please mention the URL of this bug ticket on Launchpad in the new ticket on GitLab. 2) If you don't have an account on gitlab.com and don't intend to get one, but still would like to keep this ticket opened, then please switch the state back to "New" within the next 60 days (otherwise it will get closed as "Expired"). We will then eventually migrate the ticket auto- matically to the new system (but you won't be the reporter of the bug in the new system and thus won't get notified on changes anymore). Thank you and sorry for the inconvenience. ** Changed in: qemu Status: New =3D> Incomplete -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1889033 Title: qemu-img permission denied on vmdk creation on CIFS share Status in QEMU: Incomplete Bug description: = - on a CIFS mount qemu-img claims not to have permissions to write into a= file. - VMDK sparse file creation succeeds - VMDK Flat file creation create the flat-file, but fails to write the de= scription-file - VMDK flat file creation succeeds on native linux mount such as ~/tmp or= /tmp - same effect as root or non-root - same effect with selinux setenforce 0 a) I would have expected that the monolithic flat would have created only= one large file just like sparse, but it seems to create a description file= , in addition to the storing file. b) I am aware that qemu-img may have problem opening very large files on = CIFS, however, this file is not very large Windows-10 latest updated 2004 19041.388 Linux VM, Fedora-32 in Virtualbox 6.1.12 = # rpm -qa | grep qemu-img qemu-img-4.2.0-7.fc32.x86_64 mount options: = mount -t cifs //10.x,x,x/$shname /mnt/hshare -o defaults,username=3Dgana= ,rw,uid=3D1000,gid=3D1000,vers=3D3.0 [root@fedora ~]# cd /mnt/hshare/some/folder/createvmdk/ [root@fedora createvmdk]# qemu-img create -f vmdk test1.vmdk 100M -o subf= ormat=3DmonolithicFlat Formatting 'test1.vmdk', fmt=3Dvmdk size=3D104857600 compat6=3Doff hwvers= ion=3Dundefined subformat=3DmonolithicFlat qemu-img: test1.vmdk: Could not write description: Permission denied [root@fedora createvmdk]# ls -l test1*.* -rwxr-xr-x. 1 gana gana 104857600 Jul 26 23:02 test1-flat.vmdk -rwxr-xr-x. 1 gana gana 0 Jul 26 23:02 test1.vmdk [root@fedora createvmdk]# du -k test1*.* 0 test1-flat.vmdk 0 test1.vmdk # (doesn't seem to be really flat) creation in /tmp works # cd /tmp [root@fedora tmp]# qemu-img create -f vmdk test1.vmdk 100M -o subformat= =3DmonolithicFlat Formatting 'test1.vmdk', fmt=3Dvmdk size=3D104857600 compat6=3Doff hwvers= ion=3Dundefined subformat=3DmonolithicFlat [root@fedora tmp]# ls -l /tmp/test1*.* -rw-r--r--. 1 root root 104857600 Jul 26 22:43 /tmp/test1-flat.vmdk -rw-r--r--. 1 root root 313 Jul 26 22:43 /tmp/test1.vmdk [root@fedora createvmdk]# du -k /tmp/test1*.* 4 /tmp/test1-flat.vmdk 4 /tmp/test1.vmdk [root@fedora createvmdk]# cat /tmp/test1.vmdk # Disk DescriptorFile version=3D1 CID=3D5f13c13d parentCID=3Dffffffff createType=3D"monolithicFlat" # Extent description RW 204800 FLAT "test1-flat.vmdk" 0 # The Disk Data Base #DDB ddb.virtualHWVersion =3D "4" ddb.geometry.cylinders =3D "203" ddb.geometry.heads =3D "16" ddb.geometry.sectors =3D "63" ddb.adapterType =3D "ide" = On the other-hand creating a sparse file works cd /mnt/hshare/some/folder/createvmdk/ [root@fedora createvmdk]# qemu-img create -f vmdk test2.vmdk 100M -o subf= ormat=3DmonolithicSparse Formatting 'test2.vmdk', fmt=3Dvmdk size=3D104857600 compat6=3Doff hwvers= ion=3Dundefined subformat=3DmonolithicSparse [root@fedora createvmdk]# ls l test2*.* -rwxr-xr-x. 1 gana gana 65536 Jul 26 22:52 test2.vmdk [root@fedora createvmdk]# du -k /tmp/test2*.* 12 /tmp/test2.vmdk test2.vmdk is a binary file inside it, located among garbled ascii characters is an embedded VMDK des= cription ```` # Disk DescriptorFile version=3D1 CID=3Dcf302a20 parentCID=3Dffffffff createType=3D"monolithicSparse" # Extent description RW 204800 SPARSE "test2.vmdk" # The Disk Data Base #DDB ddb.virtualHWVersion =3D "4" ddb.geometry.cylinders =3D "203" ddb.geometry.heads =3D "16" ddb.geometry.sectors =3D "63" ddb.adapterType =3D "ide" ``` To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1889033/+subscriptions