Stephane Eranian 1d9d8639c0 perf,x86: fix kernel crash with PEBS/BTS after suspend/resume ... This patch fixes a kernel crash when using precise sampling (PEBS) after a suspend/resume. Turns out the CPU notifier code is not invoked on CPU0 (BP). Therefore, the DS_AREA (used by PEBS) is not restored properly by the kernel and keeps it power-on/resume value of 0 causing any PEBS measurement to crash when running on CPU0. The workaround is to add a hook in the actual resume code to restore the DS Area MSR value. It is invoked for all CPUS. So for all but CPU0, the DS_AREA will be restored twice but this is harmless. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-03-15 09:26:35 -07:00
..
boot	Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-27 16:17:42 -08:00
configs
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2013-02-25 15:56:15 -08:00
ia32	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2013-03-02 08:34:06 -08:00
include	x86, doc: Be explicit about what the x86 struct boot_params requires	2013-03-06 20:34:43 -08:00
kernel	perf,x86: fix kernel crash with PEBS/BTS after suspend/resume	2013-03-15 09:26:35 -07:00
kvm	hlist: drop the node parameter from iterators	2013-02-27 19:10:24 -08:00
lguest	Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-21 18:06:55 -08:00
lib
math-emu
mm	x86: Do not try to sync identity map for non-mapped pages	2013-03-07 13:23:28 -08:00
net
oprofile
pci	Bug-fixes:	2013-03-03 14:22:53 -08:00
platform	Merge branch 'x86-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-02-27 16:17:42 -08:00
power	perf,x86: fix kernel crash with PEBS/BTS after suspend/resume	2013-03-15 09:26:35 -07:00
realmode
syscalls	fix compat truncate/ftruncate	2013-02-25 09:24:55 -05:00
tools
um	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal	2013-02-23 18:50:11 -08:00
vdso
video
xen	xen/pat: Disable PAT using pat_enabled value.	2013-02-28 09:03:00 -05:00
.gitignore
Kbuild
Kconfig	Select VIRT_TO_BUS directly where needed	2013-03-12 11:16:40 -07:00
Kconfig.cpu
Kconfig.debug
Makefile
Makefile.um
Makefile_32.cpu