[Bug 1964093] Re: nfsver=3,udp not working anymore
** Tags removed: server-todo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
yes, this was a typo... of course I meant disabled UDP NFS mounting. And regarding the 2nd point we have the same understanding. So since "old" clients are still able to mount the NFS shares via nfs3 over udp on jammy servers, I would not flip the kernel config CONFIG_NFS_DISABLE_UDP_SUPPORT back to "n" and leave it as it is: CONFIG_NFS_DISABLE_UDP_SUPPORT=y thank you very much for clarifying! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
> This disabled NFS3 support seems only to affect the client part of the kernel-module. NFSv3 is fine, it's udp that is disabled in the kernel (I think you understood that, and above is just a typo, but clarifying nonetheless). Clients running a kernel with CONFIG_NFS_DISABLE_UDP_SUPPORT=y should not be able to mount NFS exports using udp, that's my understanding. I believe it can still *export* (aka, server) nfs via udp. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
I am currently very confused. I restored the snapshots of my test VMs from yesterday and now I can mount the NFS-shares on the jammy server on all clients (Knoppix, Ubuntu 18.04) with nfs3+udp after putting "udp=y" in /etc/nfs.conf, also with the last kernel version 5.15.0-18. Yesterday in all my tests the udp=y param was ignored, only the vers=? params had an effect after restarting the nfs-kernel-server. My only explanation for now is a problem with the internal network between my VirtualBox Test VMs. Sorry, I know this sounds very strange. But despite of the kernel config option CONFIG_NFS_DISABLE_UDP_SUPPORT=y I can mount the NFS-shares on the jammy server with nfs3+udp from every test client VM. /proc/mounts shows: vers=3 and proto=udp Only on the server itself I cannot mount with nfs3+udp. mount -o vers=3,udp 192.168.0.1:/srv/nfs/testshare /mnt leads to mount.nfs: an incorrect mount option was specified but mount -o vers=3,tcp 192.168.0.1:/srv/nfs/testshare /mnt is working. So conclusion for me now. The /etc/nfs.conf params are working correctly and my nfs3+udp problem is solved. But nfs3+udp should not be possible to be enabled with respect to the kernel param. This disabled NFS3 support seems only to affect the client part of the kernel-module. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
Are you sure it's using udp? Did you confirm with /proc/mounts or mount output? I didn't get it to work, not even with a focal server, and the kernel option disabling UDP sounds very adamant. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
I added this to the Jammy 22.04 release notes at https://discourse.ubuntu.com/t/jammy-jellyfish-release-notes/24668 If it's decided to flip this option before release, please remove that release notes remark. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
I just updated linux-image-5.15.0-18-generic to today's new version linux-image-5.15.0-22-generic. Now with enabling "udp=y" in /etc/nfs.conf and the new kernel version I can mount the nfs-share on the jammy server from the koppix pxe initdrd (busybox mount) with nfs version 3 and udp. Only mounting jammy server from jammy client is still not possible with nfs3+udp. The diff of /boot/config-5.15.0-18-generic and /boot/config-5.15.0-22-generic shows no hints of NFS related changes in the kernel config. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
This was first disabled on groovy, the first ubuntu release after focal: root@g1:~# grep NFS /boot/config-5.8.0-59-generic |grep UDP CONFIG_NFS_DISABLE_UDP_SUPPORT=y The upstream help text next to that kernel option says: """ Choose Y here to disable the use of NFS over UDP. NFS over UDP on modern networks (1Gb+) can lead to data corruption caused by fragmentation during high loads. """ I'll leave it to the kernel team to comment further. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
Found this in /boot/config-$(uname -r): CONFIG_NFS_DISABLE_UDP_SUPPORT=y -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
I restored nfs-utils 1.x in the jammy client, and tried to mount again. It still fails. I don't think this is an nfs-utils problem: ubuntu@j-nfs-dep8:~$ dpkg -l|grep nfs ii libnfsidmap2:amd64 0.25-6build1 amd64 NFS idmapping library ii nfs-common 1:1.3.4-6ubuntu1 amd64 NFS support files common to client and server ubuntu@j-nfs-dep8:~$ sudo -i root@j-nfs-dep8:~# mount f1:/storage /mnt -o udp -v mount.nfs: timeout set for Tue Mar 8 17:54:59 2022 mount.nfs: trying text-based options 'udp,vers=4.2,addr=192.168.122.197,clientaddr=192.168.122.61' mount.nfs: mount(2): Invalid argument mount.nfs: trying text-based options 'udp,vers=4.1,addr=192.168.122.197,clientaddr=192.168.122.61' mount.nfs: mount(2): Invalid argument mount.nfs: trying text-based options 'udp,vers=4.0,addr=192.168.122.197,clientaddr=192.168.122.61' mount.nfs: mount(2): Invalid argument mount.nfs: trying text-based options 'udp,addr=192.168.122.197' mount.nfs: prog 13, trying vers=3, prot=17 mount.nfs: trying 192.168.122.197 prog 13 vers 3 prot UDP port 2049 mount.nfs: prog 15, trying vers=3, prot=17 mount.nfs: trying 192.168.122.197 prog 15 vers 3 prot UDP port 51873 mount.nfs: mount(2): Invalid argument mount.nfs: an incorrect mount option was specified ** Package changed: nfs-utils (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
Using focal as a server, jammy still cannot mount an export using udp, but the other way around works: focal client can mount nfs share from jammy using udp. So this seems a client problem. ** Changed in: nfs-utils (Ubuntu) Status: New => Won't Fix ** Changed in: nfs-utils (Ubuntu) Status: Won't Fix => Incomplete ** Changed in: nfs-utils (Ubuntu) Status: Incomplete => Confirmed ** Tags added: server-todo -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1964093] Re: nfsver=3,udp not working anymore
Taking a look at this, most curious: # mount localhost:/storage /mnt -o vers=3,proto=udp mount.nfs: an incorrect mount option was specified root@j-nfs-dep8:~# mount localhost:/storage /mnt -v -o vers=3,proto=udp mount.nfs: timeout set for Tue Mar 8 14:59:11 2022 mount.nfs: trying text-based options 'vers=3,proto=udp,addr=127.0.0.1' mount.nfs: prog 13, trying vers=3, prot=17 mount.nfs: trying 127.0.0.1 prog 13 vers 3 prot UDP port 2049 mount.nfs: prog 15, trying vers=3, prot=17 mount.nfs: trying 127.0.0.1 prog 15 vers 3 prot UDP port 58825 mount.nfs: mount(2): Invalid argument mount.nfs: an incorrect mount option was specified # rpcinfo -p program vers proto port service 104 tcp111 portmapper 103 tcp111 portmapper 102 tcp111 portmapper 104 udp111 portmapper 103 udp111 portmapper 102 udp111 portmapper 1000241 udp 44661 status 1000241 tcp 40383 status 151 udp 45269 mountd 151 tcp 58873 mountd 152 udp 44744 mountd 152 tcp 41675 mountd 153 udp 58825 mountd 153 tcp 60591 mountd 133 tcp 2049 nfs 134 tcp 2049 nfs 1002273 tcp 2049 133 udp 2049 nfs 1002273 udp 2049 1000211 udp 33771 nlockmgr 1000213 udp 33771 nlockmgr 1000214 udp 33771 nlockmgr 1000211 tcp 34605 nlockmgr 1000213 tcp 34605 nlockmgr 1000214 tcp 34605 nlockmgr -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1964093 Title: nfsver=3,udp not working anymore To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nfs-utils/+bug/1964093/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
