---

yaml
---
r: 101670
b: refs/heads/master
c: b76e59d
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d14b3dd6190af7ce4f88be68f8df828af6d44584
+refs/heads/master: b76e59d1fb086c2fdac5d243e09786d6581f2026

trunk/arch/powerpc/kernel/kprobes.c

@@ -95,6 +95,11 @@ void __kprobes arch_remove_kprobe(struct kprobe *p)
 
 static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
 {
+	/* We turn off async exceptions to ensure that the single step will
+	 * be for the instruction we have the kprobe on, if we dont its
+	 * possible we'd get the single step reported for an exception handler
+	 * like Decrementer or External Interrupt */
+	regs->msr &= ~MSR_EE;
 	regs->msr |= MSR_SE;
 
 	/*
@@ -376,6 +381,10 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs)
 	if (!cur)
 		return 0;
 
+	/* make sure we got here for instruction we have a kprobe on */
+	if (((unsigned long)cur->ainsn.insn + 4) != regs->nip)
+		return 0;
+
 	if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) {
 		kcb->kprobe_status = KPROBE_HIT_SSDONE;
 		cur->post_handler(cur, regs, 0);

trunk/arch/powerpc/kernel/misc_32.S

@@ -489,7 +489,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_UNIFIED_ID_CACHE)
  *
  * flush_icache_range(unsigned long start, unsigned long stop)
  */
-_GLOBAL(__flush_icache_range)
+_KPROBE(__flush_icache_range)
 BEGIN_FTR_SECTION
 	blr				/* for 601, do nothing */
 END_FTR_SECTION_IFSET(CPU_FTR_COHERENT_ICACHE)