I'm consistently seeing this on Zesty (linux-image-4.10.0-33-generic), the same fuse mount didn't prevent suspending before Ubuntu 17.04:
[262730.781448] Freezing of tasks failed after 20.009 seconds (1 tasks refusing to freeze, wq_busy=0): [262730.781679] FileInfoThread D 0 10555 1869 0x00000104 [262730.781684] Call Trace: [262730.781695] __schedule+0x233/0x6f0 [262730.781699] schedule+0x36/0x80 [262730.781705] request_wait_answer+0x14b/0x210 [262730.781711] ? wake_atomic_t_function+0x60/0x60 [262730.781716] __fuse_request_send+0x84/0x90 [...] -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1702368 Title: Mounted sshfs filesystems sometimes prevent suspend To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-settings-daemon/+bug/1702368/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs