Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.14 kernel[0].
If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.14 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1730607 Title: mount cifs with SMB 3.0 stop working Status in linux package in Ubuntu: In Progress Status in linux source package in Xenial: In Progress Bug description: I have a Ubuntu Server (14.04.5 LTS (GNU/Linux 4.4.0-98-generic x86_64)) and a Windows Server 2012 R2 File Server with a File Share. I mounted a file share to my linux server with a cifs-utils. Everything worked fine until some kernel update installed on Ubuntu. SMB 3.0 stopped working and my share not mounted. sudo mount -t cifs //myserver.xxx.net/WebBackup -o username=user,password=P@ssw0rd,domain=xxx.net,vers=3.0 /backupdrive - not working mount error(5): Input/output error Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) if i change to vers=2.1 - it it work --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Nov 7 16:11 seq crw-rw---- 1 root audio 116, 33 Nov 7 16:11 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.25 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=/dev/mapper/ubuntu--vg-swap_1 InstallationDate: Installed on 2016-02-20 (626 days ago) InstallationMedia: Ubuntu-Server 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) IwConfig: lo no wireless extensions. eth1 no wireless extensions. eth0 no wireless extensions. Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 MachineType: Microsoft Corporation Virtual Machine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=C SHELL=/bin/bash ProcFB: 0 hyperv_fb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-98-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro ProcVersionSignature: Ubuntu 4.4.0-98.121~14.04.1-generic 4.4.90 RelatedPackageVersions: linux-restricted-modules-4.4.0-98-generic N/A linux-backports-modules-4.4.0-98-generic N/A linux-firmware 1.127.23 RfKill: Error: [Errno 2] No such file or directory Tags: trusty Uname: Linux 4.4.0-98-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 11/26/2012 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: Hyper-V UEFI Release v1.0 dmi.board.asset.tag: None dmi.board.name: Virtual Machine dmi.board.vendor: Microsoft Corporation dmi.board.version: Hyper-V UEFI Release v1.0 dmi.chassis.asset.tag: 0981-0252-2294-8432-2174-6395-64 dmi.chassis.type: 3 dmi.chassis.vendor: Microsoft Corporation dmi.chassis.version: Hyper-V UEFI Release v1.0 dmi.modalias: dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev1.0:bd11/26/2012:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev1.0:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev1.0:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev1.0: dmi.product.name: Virtual Machine dmi.product.version: Hyper-V UEFI Release v1.0 dmi.sys.vendor: Microsoft Corporation --- AlsaDevices: total 0 crw-rw---- 1 root audio 116, 1 Nov 21 11:15 seq crw-rw---- 1 root audio 116, 33 Nov 21 11:15 timer AplayDevices: Error: [Errno 2] No such file or directory ApportVersion: 2.14.1-0ubuntu3.27 Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', '/dev/snd/timer'] failed with exit code 1: CRDA: Error: [Errno 2] No such file or directory DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=/dev/mapper/ubuntu--vg-swap_1 InstallationDate: Installed on 2016-02-20 (639 days ago) InstallationMedia: Ubuntu-Server 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) IwConfig: lo no wireless extensions. eth1 no wireless extensions. eth0 no wireless extensions. Lspci: Lsusb: Error: command ['lsusb'] failed with exit code 1: unable to initialize libusb: -99 MachineType: Microsoft Corporation Virtual Machine Package: linux (not installed) PciMultimedia: ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=C SHELL=/bin/bash ProcFB: 0 hyperv_fb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-101-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro ProcVersionSignature: Ubuntu 4.4.0-101.124~14.04.1-generic 4.4.95 RelatedPackageVersions: linux-restricted-modules-4.4.0-101-generic N/A linux-backports-modules-4.4.0-101-generic N/A linux-firmware 1.127.23 RfKill: Error: [Errno 2] No such file or directory Tags: trusty trusty Uname: Linux 4.4.0-101-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: True dmi.bios.date: 11/26/2012 dmi.bios.vendor: Microsoft Corporation dmi.bios.version: Hyper-V UEFI Release v1.0 dmi.board.asset.tag: None dmi.board.name: Virtual Machine dmi.board.vendor: Microsoft Corporation dmi.board.version: Hyper-V UEFI Release v1.0 dmi.chassis.asset.tag: 0981-0252-2294-8432-2174-6395-64 dmi.chassis.type: 3 dmi.chassis.vendor: Microsoft Corporation dmi.chassis.version: Hyper-V UEFI Release v1.0 dmi.modalias: dmi:bvnMicrosoftCorporation:bvrHyper-VUEFIReleasev1.0:bd11/26/2012:svnMicrosoftCorporation:pnVirtualMachine:pvrHyper-VUEFIReleasev1.0:rvnMicrosoftCorporation:rnVirtualMachine:rvrHyper-VUEFIReleasev1.0:cvnMicrosoftCorporation:ct3:cvrHyper-VUEFIReleasev1.0: dmi.product.name: Virtual Machine dmi.product.version: Hyper-V UEFI Release v1.0 dmi.sys.vendor: Microsoft Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1730607/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
