Kai-Heng, Actually, I saw that the fix just landed in bionic-proposed in version 4.15.0-46.49 on 2019-02-15, so bionic-updates and bionic-security don't have the fix yet as of today.
Changelog for anyone wanting to know: https://launchpad.net/ubuntu/+source/linux/+changelog Relevant snippet: * Bionic update: upstream stable patchset 2019-01-17 (LP: #1812229) - xhci: Fix perceived dead host due to runtime suspend race with event handler -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1763594 Title: xhci hangs; reset results in NULL pointer dereference To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1763594/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
