Looks like it's even in the latest Debian kernel (2.6.25-2-amd64). See the Debian bugtracker link above.
** Bug watch added: Debian Bug tracker #489058 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=489058 ** Also affects: debian via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=489058 Importance: Unknown Status: Unknown -- CPU Frequency Throttling not working on Xeon EM64T https://bugs.launchpad.net/bugs/163398 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