Tested: # uname -rv 6.5.0-27-generic #28+TEST2060919v20240419b1-Ubuntu SMP PREEMPT_DYNAMIC Fri Apr 19
# lsb_release -a No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 23.10 Release: 23.10 Codename: mantic # cd /mnt/fpgnas/tmp /mnt/fpgnas/tmp# touch sample1.txt /mnt/fpgnas/tmp# cp sample1.txt sample2.txt Success! I've tested some other cases as well and CIFS works as expected for all of them. So I think you have find the culprit. Thank you very much. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2060919 Title: Remote filesystems mounted as CIFS not working after update to Kernel "6.5.0-27-generic #28-Ubuntu" (amd64) or Kernel "6.5.0-1014-raspi #17-Ubuntu" (aarch64). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2060919/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs