I've also been experiencing a similar issue for some time - occurring intermittently, not when I'm using only a small amount of RAM - where s2disk would hang on writing the image: s2disk: Saving xxxx image data pages (press backspace to abort) ... 0%
On Ubuntu 18.04 (currently 4.18 kernel) In case it is of use to anyone else who finds this bug, I was able to work around this by writing a Hibernate script and assigning a keyboard shortcut to it: #!/bin/sh echo Unlimiting IO cache... sudo sysctl -w vm.dirty_ratio=100 sudo sysctl -w vm.dirty_background_ratio=100 sleep 5 sudo s2disk echo Re-limiting IO cache... sudo sysctl -w vm.dirty_background_ratio=10 sudo sysctl -w vm.dirty_ratio=20 This disables cached disk IO for the hibernate and restores it after resume. It seems to work reliably for the past few weeks for me anyway. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1819915 Title: s2disk freezes at saving image to disk (hibernation) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1819915/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs