I've done further tests, and found that with kernels 3.13.0-128, 3.13.0-133, 3.13.0-134 and 3.13.0-135, mounting cifs folder using vers=3.0 (with no security mode manually set, ie: no option sec=ntlmsspi used) sometimes work and sometimes it doesn't, unfortunately I can't figure out what is causing this; if anyone has any ideas please let me know.
It's so weird that sometimes after a fresh boot, I can see that the mount points from the fstab aren't mounted so if I do either sudo mount -a or sudo mount -o remount -a it sometimes crashes and sometimes it works and successfully mount the folders, see below example: # Fresh boot $ lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 14.04.5 LTS Release: 14.04 Codename: trusty # In this example I'm using 3.13.0-128, but same behaviour with newer kernels $ uname -a Linux ruby2-staging03 3.13.0-128-generic #177-Ubuntu SMP Tue Aug 8 11:40:23 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux $ ll /mnt/apps total 8 drwxr-xr-x 2 root root 4096 Nov 19 2015 ./ drwxr-xr-x 9 root root 4096 Aug 10 17:54 ../ $ sudo mount -a - OR - $ sudo mount -o remount -a mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) mount error(22): Invalid argument Refer to the mount.cifs(8) manual page (e.g. man mount.cifs) # try again, could fail every time but sometimes it does succeeds and mount the files: $ sudo mount -a - OR - $ sudo mount -o remount -a $ ll /mnt/apps total 25 drwxrwx--- 2 root root 4096 Aug 21 14:38 ./ drwxr-xr-x 9 root root 4096 Aug 10 17:54 ../ -rw-rw---- 1 root root 0 Aug 10 21:04 test drwxrwx--- 2 root root 0 Oct 21 2015 tmp/ # Relevant entry from /etc/fstab: //some_server/Applications /mnt/apps cifs vers=3.0,iocharset=utf8,noperm,rw,uid=root,file_mode=0660,dir_mode=0770,credentials=/credentials 0 0 Cheers FedeX -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1729337 Title: CIFS errors on 4.4.0-98, but not on 4.4.0-97 with same config To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1729337/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
