I resolved this bug installing linux-rt kernel I don't know why it works but it does !
-- ksoftirqd/0 hogs one core after resume from suspend https://bugs.launchpad.net/bugs/467127 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs