Apparently the problem is related to power save issue and has been introduced after installing tlp tlp-rdw packages. I've removed those package and the issue is gone.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1727254 Title: Partial system freeze in ubuntu Status in linux package in Ubuntu: Confirmed Bug description: The hangs is firstly observed in my usb ethernet card suddenly. It appears when I unplug/re plug the usb ethernet card, then a lot of things then get blocked, even reboot doesn't no longer work. I will have to reset the system in order to fix the problem. I never had the issue before, only recently. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1727254/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
