I saw similar messages in https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2032386 but that only caused hangs and not block the entire desktop (and Firefox is good now so I don't know)
I saw similar messages in https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/2032386 but that only caused hangs and not block the entire desktop (and Firefox is good now so I don't know)