Several issues:
This message occurs when you have left an open browser session when rebooting the server:
Oct 24 18:41:59 Tower root: error: /plugins/unassigned.devices/UnassignedDevices.php: wrong csrf_token
### [PREVIOUS LINE REPEATED 41 TIMES] ###
Be sure to close all browser sessions when you reboot the server.
You need to look at these FCP warnings and fix them:
Oct 24 18:47:00 Tower root: Fix Common Problems Version 2018.10.21
Oct 24 18:47:00 Tower root: Fix Common Problems: Warning: Share domains set to not use the cache, but files / folders exist on the cache drive
Oct 24 18:47:11 Tower root: Fix Common Problems: Warning: Marvel Hard Drive Controller Installed ** Ignored
This is confusing to me:
Oct 27 10:48:03 Tower kernel: CIFS VFS: No task to wake, unknown frame received! NumMids 1
Oct 27 10:48:03 Tower kernel: 00000000: 424d53fe 00000040 00000000 00000012 .SMB@...........
Oct 27 10:48:03 Tower kernel: 00000010: 00000001 00000000 ffffffff ffffffff ................
Oct 27 10:48:03 Tower kernel: 00000020: 00000000 00000000 00000000 00000000 ................
Oct 27 10:48:03 Tower kernel: 00000030: 00000000 00000000 00000000 00000000 ................
Oct 27 10:48:47 Tower kernel: CIFS VFS: No task to wake, unknown frame received! NumMids 1
Oct 27 10:48:47 Tower kernel: 00000000: 424d53fe 00000040 00000000 00000012 .SMB@...........
Oct 27 10:48:47 Tower kernel: 00000010: 00000001 00000000 ffffffff ffffffff ................
Oct 27 10:48:47 Tower kernel: 00000020: 00000000 00000000 00000000 00000000 ................
Oct 27 10:48:47 Tower kernel: 00000030: 00000000 00000000 00000000 00000000 ................
Oct 27 10:49:18 Tower kernel: CIFS VFS: No task to wake, unknown frame received! NumMids 1
Oct 27 10:49:18 Tower kernel: 00000000: 424d53fe 00000040 00000000 00000012 .SMB@...........
Oct 27 10:49:18 Tower kernel: 00000010: 00000001 00000000 ffffffff ffffffff ................
Oct 27 10:49:18 Tower kernel: 00000020: 00000000 00000000 00000000 00000000 ................
Oct 27 10:49:18 Tower kernel: 00000030: 00000000 00000000 00000000 00000000 ................
Oct 27 10:49:44 Tower emhttpd: req (7): csrf_token=***************&title=System+Log&cmd=%2FwebGui%2Fscripts%2Ftail_log&arg1=syslog
Oct 27 10:49:44 Tower emhttpd: cmd: /usr/local/emhttp/plugins/dynamix/scripts/tail_log syslog
Oct 27 10:49:55 Tower unassigned.devices: Removing Remote SMB share '//TOWERII/backupshare'...
Oct 27 10:49:55 Tower unassigned.devices: Device '//TOWERII/backupshare' script file not found. 'REMOVE' script not executed.
Oct 27 10:49:55 Tower unassigned.devices: Unmounting Remote SMB Share '//TOWERII/backupshare'...
Oct 27 10:49:55 Tower unassigned.devices: Unmounting '//TOWERII/backupshare'...
Oct 27 10:49:55 Tower unassigned.devices: Unmount cmd: /bin/umount -t cifs '//TOWERII/backupshare' 2>&1
Oct 27 10:49:55 Tower unassigned.devices: Successfully unmounted '//TOWERII/backupshare'
Oct 27 10:49:55 Tower unassigned.devices: Removing SMB share file '/etc/samba/unassigned-shares/TOWERII_backupshare.conf'
Oct 27 10:49:55 Tower unassigned.devices: Removing SMB share definitions from '/boot/config/smb-extra.conf'
Oct 27 10:49:55 Tower unassigned.devices: Reloading Samba configuration..
Oct 27 10:49:55 Tower unassigned.devices: Successfully removed SMB share 'TOWERII_backupshare'.
Oct 27 10:49:55 Tower unassigned.devices: Share '//TOWERII/backupshare' unmount successfull.
Oct 27 10:49:58 Tower unassigned.devices: Mount SMB share '//TOWERII/backupshare' using SMB3 protocol.
Oct 27 10:49:58 Tower kernel: CIFS VFS: error -95 on ioctl to get interface list
Oct 27 10:49:58 Tower unassigned.devices: Mount SMB/NFS command: mount -t cifs -o rw,nounix,iocharset=utf8,_netdev,file_mode=0777,dir_mode=0777,,vers=3.0,username=xxx=******* '//TOWERII/backupshare' '/mnt/disks/TOWERII_backupshare'
Oct 27 10:49:58 Tower unassigned.devices: Successfully mounted '//TOWERII/backupshare' on '/mnt/disks/TOWERII_backupshare'.
Oct 27 10:49:58 Tower unassigned.devices: Defining share 'TOWERII_backupshare' with file '/etc/samba/unassigned-shares/TOWERII_backupshare.conf'
Oct 27 10:49:58 Tower unassigned.devices: Adding share 'TOWERII_backupshare' to '/boot/config/smb-extra.conf'
Oct 27 10:49:58 Tower unassigned.devices: Reloading Samba configuration...
Oct 27 10:49:58 Tower unassigned.devices: Directory '/mnt/disks/TOWERII_backupshare' shared successfully.
Oct 27 10:49:58 Tower unassigned.devices: Device '//TOWERII/backupshare' script file not found. 'ADD' script not executed.
Oct 27 10:57:18 Tower kernel: mdcmd (278): spindown 1
Oct 27 10:57:21 Tower kernel: mdcmd (279): spindown 3
Oct 27 11:01:42 Tower unassigned.devices: Removing Remote SMB share '//TOWERII/backupshare'...
Oct 27 11:01:42 Tower unassigned.devices: Device '//TOWERII/backupshare' script file not found. 'REMOVE' script not executed.
Oct 27 11:01:42 Tower unassigned.devices: Unmounting Remote SMB Share '//TOWERII/backupshare'...
Oct 27 11:01:42 Tower unassigned.devices: Unmounting '//TOWERII/backupshare'...
Oct 27 11:01:42 Tower unassigned.devices: Unmount cmd: /bin/umount -t cifs '//TOWERII/backupshare' 2>&1
Oct 27 11:01:42 Tower unassigned.devices: Successfully unmounted '//TOWERII/backupshare'
Oct 27 11:01:42 Tower unassigned.devices: Removing SMB share file '/etc/samba/unassigned-shares/TOWERII_backupshare.conf'
Oct 27 11:01:42 Tower unassigned.devices: Removing SMB share definitions from '/boot/config/smb-extra.conf'
Oct 27 11:01:42 Tower unassigned.devices: Reloading Samba configuration..
Oct 27 11:01:42 Tower unassigned.devices: Successfully removed SMB share 'TOWERII_backupshare'.
Oct 27 11:01:42 Tower unassigned.devices: Share '//TOWERII/backupshare' unmount successfull.
Oct 27 11:01:54 Tower unassigned.devices: Mount SMB share '//TOWERII/backupshare' using SMB3 protocol.
Oct 27 11:01:54 Tower kernel: CIFS VFS: error -95 on ioctl to get interface list
Oct 27 11:01:54 Tower unassigned.devices: Mount SMB/NFS command: mount -t cifs -o rw,nounix,iocharset=utf8,_netdev,file_mode=0777,dir_mode=0777,,vers=3.0,username=xxx=******* '//TOWERII/backupshare' '/mnt/disks/TOWERII_backupshare'
Oct 27 11:01:54 Tower unassigned.devices: Successfully mounted '//TOWERII/backupshare' on '/mnt/disks/TOWERII_backupshare'.
Oct 27 11:01:54 Tower unassigned.devices: Defining share 'TOWERII_backupshare' with file '/etc/samba/unassigned-shares/TOWERII_backupshare.conf'
Oct 27 11:01:54 Tower unassigned.devices: Adding share 'TOWERII_backupshare' to '/boot/config/smb-extra.conf'
Oct 27 11:01:54 Tower unassigned.devices: Reloading Samba configuration...
Oct 27 11:01:54 Tower unassigned.devices: Directory '/mnt/disks/TOWERII_backupshare' shared successfully.
Oct 27 11:01:54 Tower unassigned.devices: Device '//TOWERII/backupshare' script file not found. 'ADD' script not executed.
It looks like CIFS VFS is having a problem. It also appears that you are unmounting and re-mounting the shares constantly manually.
Fix the FCP issues, reboot the server, mount the shares and then capture the diagnostics right after the shares disconnect. Your constant mounting and unmounting the shares makes it hard for me to see what is happening.