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d368514c30
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Anton Blanchard d368514c30 powerpc: Fix corruption when grabbing FWNMI data 
The FWNMI code uses a global buffer without any locks to read the RTAS error
information. If two CPUs take a machine check at once then we will corrupt
this buffer.

Since most FWNMI rtas messages are not of the extended type, we can create a
64bit percpu buffer and use it where possible. If we do receive an extended
RTAS log then we fall back to the old behaviour of using the global buffer.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2011-01-21 14:08:38 +11:00
..
alpha alpha: fix WARN_ON in __local_bh_enable() 2011-01-17 05:42:16 +01:00
arm ARM: S5PV310: Add missing virtual ASoC DMA device 2011-01-18 14:47:07 +09:00
avr32 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/avr32-2.6 2011-01-13 12:06:58 -08:00
blackfin Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-01-13 10:05:56 -08:00
cris Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2011-01-13 10:05:56 -08:00
frv BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
h8300 Merge branch 'master' into for-next 2010-12-22 18:57:02 +01:00
ia64 [IA64] fix ia64 build failure in pmdp_get_and_clear 2011-01-14 10:56:38 -08:00
m32r Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2010-10-28 16:16:39 -07:00
m68k Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2011-01-18 08:05:20 -08:00
m68knommu Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu 2011-01-18 08:05:20 -08:00
microblaze Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze 2011-01-18 08:06:22 -08:00
mips Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/upstream-linus 2011-01-18 14:28:48 -08:00
mn10300 kernel: clean up USE_GENERIC_SMP_HELPERS 2011-01-13 08:03:08 -08:00
parisc parisc: fix compile breakage caused by inlining maybe_mkwrite 2011-01-16 15:05:44 -08:00
powerpc powerpc: Fix corruption when grabbing FWNMI data 2011-01-21 14:08:38 +11:00
s390 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 2011-01-14 08:47:26 -08:00
score Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2010-10-28 16:16:39 -07:00
sh Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-idle-2.6 2011-01-13 20:15:18 -08:00
sparc thp: pte alloc trans splitting 2011-01-13 17:32:40 -08:00
tile arch/tile: handle rt_sigreturn() more cleanly 2010-12-17 16:59:29 -05:00
um thp: pte alloc trans splitting 2011-01-13 17:32:40 -08:00
x86 x86: Unify "numa=" command line option handling 2011-01-19 10:25:18 +01:00
xtensa thp: mm: define MADV_NOHUGEPAGE 2011-01-13 17:32:47 -08:00
.gitignore
Kconfig [S390] mutex: Introduce arch_mutex_cpu_relax() 2011-01-05 12:47:31 +01:00