1. 11 Jun, 2013 1 commit
    • Thomas Gleixner's avatar
      idle: Add the stack canary init to cpu_startup_entry() · d7880812
      Thomas Gleixner authored
      Moving x86 to the generic idle implementation (commit 7d1a9417 "x86:
      Use generic idle loop") wreckaged the stack protector.
      
      I stupidly missed that boot_init_stack_canary() must be inlined from a
      function which never returns, but I put that call into
      arch_cpu_idle_prepare() which of course returns.
      
      I pondered to play tricks with arch_cpu_idle_prepare() first, but then
      I noticed, that the other archs which have implemented the
      stackprotector (ARM and SH) do not initialize the canary for the
      non-boot cpus.
      
      So I decided to move the boot_init_stack_canary() call into
      cpu_startup_entry() ifdeffed with an CONFIG_X86 for now. This #ifdef
      is just a temporary measure as I don't want to inflict the
      boot_init_stack_canary() call on ARM and SH that late in the cycle.
      
      I'll queue a patch for 3.11 which removes the #ifdef if the ARM/SH
      maintainers have no objection.
      Reported-by: default avatarWouter van Kesteren <woutershep@gmail.com>
      Cc: x86@kernel.org
      Cc: Russell King <linux@arm.linux.org.uk>
      Cc: Paul Mundt <lethal@linux-sh.org>
      Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
      d7880812
  2. 20 May, 2013 10 commits
  3. 19 May, 2013 3 commits
  4. 18 May, 2013 26 commits