This is actually a commit in linux-next that appears to be the fix to this bug. I built a test kernel with this patch, which is commit 190b22eedd032c14cbc2b9e13d112f039460522c.
The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1759791 Can you test this kernel and see if it resolves this bug? Note, to test this kernel, you need to install both the linux-image and linux-image-extra .deb packages. Thanks in advance! -- 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/1759791 Title: NFS + sec=krb5 is broken Status in linux package in Ubuntu: In Progress Status in linux source package in Bionic: In Progress Bug description: I am testing the development branch of Bionic Beaver. With the latest update to kernel 4.15.0-13 my nfs-mounts in a university network are broken. > sudo mount -vvv -t nfs4 my_server:/my/share /nfs -osoft,sec=krb5 > mount.nfs4: timeout set for Mon Mar 26 16:29:56 2018 > mount.nfs4: trying text-based options 'soft,sec=krb5,nfsvers=4.0,addr=10.162.229.2,clientaddr=10.152.249.189' > mount.nfs4: mount(2): Input/output error > mount.nfs4: mount system call failed > kernel: NFS: nfs4_discover_server_trunking unhandled error -5. Exiting with error EIO > kernel: RPC: couldn't encode RPC header, exit EIO > kernel: gss_marshal: gss_get_mic FAILED (851968) Known good version: linux-image-4.15.0-10 I think it is the same bug like in https://bugzilla.redhat.com/show_bug.cgi?id=1558977 The bug was introduced in the mainline kernel 4.15.4 with commit "[46e8d06e423c4f35eac7a8b677b713b3ec9b0684] crypto: hash - prevent using keyed hashes without setting key" This bug should be fixed before releasing ubuntu18.04 by either reverting the commit or using a fixed mainline kernel. --- ApportVersion: 2.20.9-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: gdm 1340 F.... pulseaudio /dev/snd/controlC0: gdm 1340 F.... pulseaudio DistroRelease: Ubuntu 18.04 InstallationDate: Installed on 2018-03-22 (6 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180321) IwConfig: lo no wireless extensions. enp0s31f6 no wireless extensions. Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 046a:b091 Cherry GmbH Bus 001 Device 002: ID 0bf8:101e Fujitsu Siemens Computers Bus 001 Device 004: ID 0bda:0184 Realtek Semiconductor Corp. RTS5182 Card Reader Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: FUJITSU ESPRIMO D757 Package: linux (not installed) ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-13-generic root=UUID=463c4c1b-7771-40dd-833f-f4d68a5fd914 ro quiet splash vt.handoff=1 ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-4.15.0-13-generic N/A linux-backports-modules-4.15.0-13-generic N/A linux-firmware 1.173 RfKill: Tags: bionic Uname: Linux 4.15.0-13-generic x86_64 UnreportableReason: Der Bericht gehört zu einem nicht installierten Paket. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: _MarkForUpload: False dmi.bios.date: 10/12/2017 dmi.bios.vendor: FUJITSU // American Megatrends Inc. dmi.bios.version: V5.0.0.12 R1.14.0 for D3531-A1x dmi.board.name: D3531-A1 dmi.board.vendor: FUJITSU dmi.board.version: S26361-D3531-A1 dmi.chassis.type: 3 dmi.chassis.vendor: FUJITSU dmi.modalias: dmi:bvnFUJITSU//AmericanMegatrendsInc.:bvrV5.0.0.12R1.14.0forD3531-A1x:bd10/12/2017:svnFUJITSU:pnESPRIMOD757:pvr:rvnFUJITSU:rnD3531-A1:rvrS26361-D3531-A1:cvnFUJITSU:ct3:cvr: dmi.product.family: ESPRIMO-FTS dmi.product.name: ESPRIMO D757 dmi.sys.vendor: FUJITSU To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1759791/+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
