Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: Combine printk()s in show_regs_common()
  x86: Don't call dump_stack() from arch_trigger_all_cpu_backtrace_handler()