Comment # 21 on bug 943107 from Jiri Slaby

Introduced in v3.15-rc1~155 by:
commit 198d208df4371734ac4728f69cb585c284d20a15
Author: Steven Rostedt <srostedt@redhat.com>
Date:   Thu Feb 6 09:41:31 2014 -0500

    x86: Keep thread_info on thread stack in x86_32



For x86_64 fixed in:
commit 8180bf0169d2db0d4864eb19aaf5d848c7a510c9
Author: Jan Beulich <jbeulich@novell.com>
Date:   Thu Sep 18 08:29:49 2008 +0000

    - Update i386 and x86-64 config files (disable CONFIG_FRAME_POINTER in
      non-debug configs).
    - patches.suse/stack-unwind: Add missing put_cpu()-s for x86-64.
    - patches.suse/no-frame-pointer-select: Fix stack unwinder Kconfig
      (bnc#402518).