Happens to me randomly, I think scheduled by the systemd timer. When fstrim is called on the root mount it instant hangs the entire system forever. Mouse and keyboard do respond but anything requiring disk access wont be accessible anmore.
iotop is showing fstrim stuck on 100% IO at 0KB/s read and 0KB/s write. I have a Kingston SHFS37A SSD, / is ext4. ** Attachment added: "strace output of hanging fstrim" https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1756311/+attachment/5224553/+files/fstrim.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1756311 Title: fstrim and discard operations take too long to complete To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-aws/+bug/1756311/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
