diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 03323175de308fbb3f98ecd5595f66f2d92e9580..602af692efdc1b5273e466b474dbf1a6c7e25922 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -192,7 +192,7 @@ struct task_struct;
 struct mm_struct;
 struct seq_file;
 
-typedef int (*dump_trace_func_t)(void *data, unsigned long address);
+typedef int (*dump_trace_func_t)(void *data, unsigned long address, int reliable);
 void dump_trace(dump_trace_func_t func, void *data,
 		struct task_struct *task, unsigned long sp);
 
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 6693383bc01bc7b78b4a98895a06052ccd8d77ec..518f615ad0a26d21f9bfbdb8017cdcd025768bf3 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -38,10 +38,10 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 		if (sp < low || sp > high - sizeof(*sf))
 			return sp;
 		sf = (struct stack_frame *) sp;
+		if (func(data, sf->gprs[8], 0))
+			return sp;
 		/* Follow the backchain. */
 		while (1) {
-			if (func(data, sf->gprs[8]))
-				return sp;
 			low = sp;
 			sp = sf->back_chain;
 			if (!sp)
@@ -49,6 +49,8 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 			if (sp <= low || sp > high - sizeof(*sf))
 				return sp;
 			sf = (struct stack_frame *) sp;
+			if (func(data, sf->gprs[8], 1))
+				return sp;
 		}
 		/* Zero backchain detected, check for interrupt frame. */
 		sp = (unsigned long) (sf + 1);
@@ -56,7 +58,7 @@ __dump_trace(dump_trace_func_t func, void *data, unsigned long sp,
 			return sp;
 		regs = (struct pt_regs *) sp;
 		if (!user_mode(regs)) {
-			if (func(data, regs->psw.addr))
+			if (func(data, regs->psw.addr, 1))
 				return sp;
 		}
 		low = sp;
@@ -90,7 +92,7 @@ struct return_address_data {
 	int depth;
 };
 
-static int __return_address(void *data, unsigned long address)
+static int __return_address(void *data, unsigned long address, int reliable)
 {
 	struct return_address_data *rd = data;
 
@@ -109,9 +111,12 @@ unsigned long return_address(int depth)
 }
 EXPORT_SYMBOL_GPL(return_address);
 
-static int show_address(void *data, unsigned long address)
+static int show_address(void *data, unsigned long address, int reliable)
 {
-	printk("([<%016lx>] %pSR)\n", address, (void *)address);
+	if (reliable)
+		printk(" [<%016lx>] %pSR \n", address, (void *)address);
+	else
+		printk("([<%016lx>] %pSR)\n", address, (void *)address);
 	return 0;
 }
 
diff --git a/arch/s390/kernel/perf_event.c b/arch/s390/kernel/perf_event.c
index 17431f63de00279bbef1b1619ce3966f395c7e74..955a7b6fa0a453bacf588de42e80a95e07ade61a 100644
--- a/arch/s390/kernel/perf_event.c
+++ b/arch/s390/kernel/perf_event.c
@@ -222,7 +222,7 @@ static int __init service_level_perf_register(void)
 }
 arch_initcall(service_level_perf_register);
 
-static int __perf_callchain_kernel(void *data, unsigned long address)
+static int __perf_callchain_kernel(void *data, unsigned long address, int reliable)
 {
 	struct perf_callchain_entry_ctx *entry = data;
 
diff --git a/arch/s390/kernel/stacktrace.c b/arch/s390/kernel/stacktrace.c
index 44f84b23d4e5996f1ddc594ae3985d762e80aa36..355db9db82104d11bac97f7c23c59fa363859757 100644
--- a/arch/s390/kernel/stacktrace.c
+++ b/arch/s390/kernel/stacktrace.c
@@ -27,12 +27,12 @@ static int __save_address(void *data, unsigned long address, int nosched)
 	return 1;
 }
 
-static int save_address(void *data, unsigned long address)
+static int save_address(void *data, unsigned long address, int reliable)
 {
 	return __save_address(data, address, 0);
 }
 
-static int save_address_nosched(void *data, unsigned long address)
+static int save_address_nosched(void *data, unsigned long address, int reliable)
 {
 	return __save_address(data, address, 1);
 }
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 16f4c3960b874b2dc2129926c45c8343a3f7403c..9a4de4599c7b99a82f4a38989a309c896f4e73f3 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <asm/processor.h>
 
-static int __s390_backtrace(void *data, unsigned long address)
+static int __s390_backtrace(void *data, unsigned long address, int reliable)
 {
 	unsigned int *depth = data;