Merge branch 'devel-stable' into devel

Conflicts:
	arch/arm/Kconfig
	arch/arm/include/asm/system.h
	arch/arm/mm/Kconfig

1 files changed, 11 insertions, 2 deletions

diff --git a/arch/x86/kernel/dumpstack.h b/arch/x86/kernel/dumpstack.h
index 29e5f7c845b2..e1a93be4fd44 100644
--- a/arch/x86/kernel/dumpstack.h
+++ b/arch/x86/kernel/dumpstack.h
@@ -14,6 +14,8 @@
 #define get_bp(bp) asm("movq %%rbp, %0" : "=r" (bp) :)
 #endif
 
+#include <linux/uaccess.h>
+
 extern void
 show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
                 unsigned long *stack, unsigned long bp, char *log_lvl);
@@ -30,6 +32,11 @@ struct stack_frame {
         unsigned long return_address;
 };
 
+struct stack_frame_ia32 {
+    u32 next_frame;
+    u32 return_address;
+};
+
 static inline unsigned long rewind_frame_pointer(int n)
 {
         struct stack_frame *frame;
@@ -37,8 +44,10 @@ static inline unsigned long rewind_frame_pointer(int n)
         get_bp(frame);
 
 #ifdef CONFIG_FRAME_POINTER
-        while (n--)
-                frame = frame->next_frame;
+        while (n--) {
+                if (probe_kernel_address(&frame->next_frame, frame))
+                        break;
+        }
 #endif
 
         return (unsigned long)frame;