I've got the same problem from a number of Ubuntu 16.04 machines. They're running on Hyper-V and so they've got the following installed as per Microsoft recommendations:
linux-virtual-lts-xenial linux-tools-virtual-lts-xenial linux-cloud- tools-virtual-lts-xenial It happens a few minutes after mounting an SMB share. The share eventually disconnects. I get the errors below on the console and it starts flooding our SMB share servers. In one instance, we connect to DFS shares so it is flooding the domain controllers. Errors seen on console: CIFS VFS: Autodisabling the use of server inode numbers on \\server\share. This server doesn't seem to support them properly. Hard dlinks will not be recognized on this mount. CIFS VFS: Error -104 sending data on the socket to server. Since I have the linux-virtual-lts-xenial kernel installed is there a virtual kernel I can upgrade to or just mainline? -- 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/1686099 Title: connection flood to port 445 on mounting cifs volume under kernel Status in Linux: New Status in linux package in Ubuntu: Confirmed Bug description: This is identical to the bug reported on the Debian kernel list, only I'm running 4.4.0, not 4.[89].0 After about 15 mintues, the cifsd daemon starts flooding echo requests on port 445 to the windows server causing a constant 1MB/s load (around 10,000 packets per second) that eventually leads to system instability that forces a reboot to correct. This is repeatable and as far as I know started about a week ago (possibly with the installation of 4.4.0-75). https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=856843 To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1686099/+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
