We just hit this bug again, so it is clearly not fixed yet. Attaching another syslog. It seems to be triggered by a combination of echo 3 > /proc/sys/vm/drop_caches and destroying cgroups, but I have yet to find a reliable way of reproducing it.
** Attachment added: "syslog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1635891/+attachment/4895149/+files/syslog.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1635891 Title: Random hangs after upgrade to 4.4.0-45, possibly cgroup related To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1635891/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
