Alexius - there were a number of cifs patches in 5.40.81: git log --pretty=oneline Ubuntu-5.4.0-80.90..Ubuntu-5.4.0-81.91 -- fs/cifs 75b60ff911d81192c6bd460c80fb59126d068d5a cifs: handle empty list of targets in cifs_reconnect() 23c1f856df591edab3ae8af9008fe20ec46c673e cifs: get rid of unused parameter in reconn_setup_dfs_targets() 55811c48507f528d1ecaf1717e06208edbead552 cifs: On cifs_reconnect, resolve the hostname again. 37a4049bdd389dbdeda8cb984260214fa82c86b7 cifs: Avoid error pointer dereference 651f03d7c1f4644d6eb8392f2aa20a77a5f3ee18 cifs: Simplify reconnect code when dfs upcall is enabled b7c09698a489f05bf7dcf6adad2e7d3c20ac8aa2 cifs: rename reconn_inval_dfs_target()
Please try the kernel in this PPA to see if reverting those patches fixes your problem: https://launchpad.net/~timg-tpi/+archive/ubuntu/cifs-revert-cifs- lp1939845 ** Also affects: linux (Ubuntu Focal) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Focal) Assignee: (unassigned) => Tim Gardner (timg-tpi) ** Changed in: linux (Ubuntu Focal) Status: New => In Progress ** Changed in: linux (Ubuntu Focal) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939845 Title: Kernal update 5.4.0-81 broke samba network To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1939845/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
