In fact, this bug was linked with the module "powernow-k8" I have to put it in the module blacklist and all works great now.
Other informations are available if needed.... -- [Feisty] Network go down and system freeze randomly https://bugs.launchpad.net/bugs/102748 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
