And here all the other x86-64 changes that have accumulated in my tree.

It's various bugfixes and cleanups.

Changes:

 - fix nmi watchdog
 - remove local timer spreading over CPUs - it's useless here and caused many problems
 - New offset.h computation from Kai
 - Lots of changes for the C99 initializer syntax
 - New MTRR driver from Dave & Mats
 - Bugfix: kernel threads don't start with interrupts disabled anymore, which fixes
   various boottime hangs (this was fixed a long time ago, but the bug crept in again
   by the backdoor)
 - Do %gs reload in context switch lockless
 - Fix device_not_available entry point race
 - New per CPU GDT layout following i386: the layot is not completely
   compatible with i386, which may problems with Wine in theory.
   Haven't seen any yet.
 - Support disableapic option
 - driverfs support removed for now because it caused crashes
 - Updates for new signal setup
 - Support for kallsyms
 - Port TLS clone flags/syscalls: unfortunately made the context switch
   even uglier than it already is.
 - Security fixes for ptrace
 - New in_interrupt()/atomic setup ported from i386
 - New makefiles mostly from Kai
 - Various updates ported from i386