Anton Blanchard 79c66ce8f6 powerpc/kexec: Fix kexec when using VMX optimised memcpy ... commit b3f271e86e (powerpc: POWER7 optimised memcpy using VMX and enhanced prefetch) uses VMX when it is safe to do so (ie not in interrupt). It also looks at the task struct to decide if we have to save the current tasks' VMX state. kexec calls memcpy() at a point where the task struct may have been overwritten by the new kexec segments. If it has been overwritten then when memcpy -> enable_altivec looks up current->thread.regs->msr we get a cryptic oops or lockup. I also notice we aren't initialising thread_info->cpu, which means smp_processor_id is broken. Fix that too. Signed-off-by: Anton Blanchard <anton@samba.org> Cc: <stable@vger.kernel.org> # 3.6+ Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>		2013-05-14 14:36:23 +10:00
..
boot	MMC highlights for 3.10:	2013-05-04 13:45:17 -07:00
configs	Merge remote-tracking branch 'kumar/next' into next	2013-04-30 11:10:09 +10:00
crypto	powerpc: Fix compile of sha1-powerpc-asm.S on 32-bit	2013-03-05 16:56:26 +11:00
include	powerpc: Fix build errors STRICT_MM_TYPECHECKS	2013-05-14 14:36:20 +10:00
kernel	powerpc/kexec: Fix kexec when using VMX optimised memcpy	2013-05-14 14:36:23 +10:00
kvm	Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2013-05-05 14:47:31 -07:00
lib	uprobes/powerpc: Add dependency on single step emulation	2013-01-29 11:35:06 +11:00
math-emu
mm	powerpc: Fix build errors STRICT_MM_TYPECHECKS	2013-05-14 14:36:20 +10:00
net	filter: bpf_jit_comp: refactor and unify BPF JIT image dump output	2013-03-21 17:25:56 -04:00
oprofile	Merge branch 'merge' into next	2013-01-29 11:33:37 +11:00
perf	powerpc/perf: Enable branch stack sampling framework	2013-04-26 16:13:02 +10:00
platforms	powerpc/powernv: Improve kexec reliability	2013-05-10 16:59:18 +10:00
sysdev	powerpc: Add an in memory udbg console	2013-05-08 06:36:49 +10:00
xmon	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2013-05-02 10:16:16 -07:00
Kconfig	Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc	2013-05-02 10:16:16 -07:00
Kconfig.debug	powerpc: Add an in memory udbg console	2013-05-08 06:36:49 +10:00
Makefile	powerpc: Avoid load of static chain register when calling nested functions through a pointer on 64bit	2013-01-10 17:01:27 +11:00
relocs_check.pl	powerpc: Process dynamic relocations for kernel	2011-12-20 10:21:08 -05:00