diff --git a/kernel/watchdog.c b/kernel/watchdog.c
index f37f974aa81b..18bb15776c57 100644
--- a/kernel/watchdog.c
+++ b/kernel/watchdog.c
@@ -363,8 +363,14 @@ static int watchdog_nmi_enable(int cpu)
 		goto out_save;
 	}
 
-	printk(KERN_ERR "NMI watchdog disabled for cpu%i: unable to create perf event: %ld\n",
-	       cpu, PTR_ERR(event));
+
+	/* vary the KERN level based on the returned errno */
+	if (PTR_ERR(event) == -EOPNOTSUPP)
+		printk(KERN_INFO "NMI watchdog disabled (cpu%i): not supported (no LAPIC?)\n", cpu);
+	else if (PTR_ERR(event) == -ENOENT)
+		printk(KERN_WARNING "NMI watchdog disabled (cpu%i): hardware events not enabled\n", cpu);
+	else
+		printk(KERN_ERR "NMI watchdog disabled (cpu%i): unable to create perf event: %ld\n", cpu, PTR_ERR(event));
 	return PTR_ERR(event);
 
 	/* success path */
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 07f8d6d852c2..12e0e41696d9 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -680,9 +680,9 @@ static int __cmd_record(int argc, const char **argv)
 					       perf_event__synthesize_guest_os);
 
 	if (!system_wide)
-		perf_event__synthesize_thread(target_tid,
-					      process_synthesized_event,
-					      session);
+		perf_event__synthesize_thread_map(evsel_list->threads,
+						  process_synthesized_event,
+						  session);
 	else
 		perf_event__synthesize_threads(process_synthesized_event,
 					       session);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index f403aced4cba..f9a99a1ce609 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -44,6 +44,7 @@ static const char	default_pretty_printing_style[] = "normal";
 static const char	*pretty_printing_style = default_pretty_printing_style;
 
 static char		callchain_default_opt[] = "fractal,0.5";
+static symbol_filter_t	annotate_init;
 
 static struct hists *perf_session__hists_findnew(struct perf_session *self,
 						 u64 event_stream, u32 type,
@@ -167,7 +168,7 @@ static int process_sample_event(union perf_event *event,
 	struct perf_event_attr *attr;
 
 	if (perf_event__preprocess_sample(event, session, &al, sample,
-					  symbol__annotate_init) < 0) {
+					  annotate_init) < 0) {
 		fprintf(stderr, "problem processing %d event, skipping it.\n",
 			event->header.type);
 		return -1;
@@ -520,6 +521,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
 	 */
 	if (use_browser > 0) {
 		symbol_conf.priv_size = sizeof(struct annotation);
+		annotate_init	      = symbol__annotate_init;
 		/*
  		 * For searching by name on the "Browse map details".
  		 * providing it only in verbose mode not to bloat too
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 210c736e6db4..c9fd66d4a082 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -876,8 +876,8 @@ static int __cmd_top(void)
 		return -ENOMEM;
 
 	if (top.target_tid != -1)
-		perf_event__synthesize_thread(top.target_tid, perf_event__process,
-					      session);
+		perf_event__synthesize_thread_map(top.evlist->threads,
+						  perf_event__process, session);
 	else
 		perf_event__synthesize_threads(perf_event__process, session);
 
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 731265f4ad19..fbf5754c8866 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -6,6 +6,7 @@
 #include "string.h"
 #include "strlist.h"
 #include "thread.h"
+#include "thread_map.h"
 
 static const char *perf_event__names[] = {
 	[0]			 = "TOTAL",
@@ -265,11 +266,12 @@ static int __event__synthesize_thread(union perf_event *comm_event,
 					     process, session);
 }
 
-int perf_event__synthesize_thread(pid_t pid, perf_event__handler_t process,
-				  struct perf_session *session)
+int perf_event__synthesize_thread_map(struct thread_map *threads,
+				      perf_event__handler_t process,
+				      struct perf_session *session)
 {
 	union perf_event *comm_event, *mmap_event;
-	int err = -1;
+	int err = -1, thread;
 
 	comm_event = malloc(sizeof(comm_event->comm) + session->id_hdr_size);
 	if (comm_event == NULL)
@@ -279,8 +281,15 @@ int perf_event__synthesize_thread(pid_t pid, perf_event__handler_t process,
 	if (mmap_event == NULL)
 		goto out_free_comm;
 
-	err = __event__synthesize_thread(comm_event, mmap_event, pid,
-					 process, session);
+	err = 0;
+	for (thread = 0; thread < threads->nr; ++thread) {
+		if (__event__synthesize_thread(comm_event, mmap_event,
+					       threads->map[thread],
+					       process, session)) {
+			err = -1;
+			break;
+		}
+	}
 	free(mmap_event);
 out_free_comm:
 	free(comm_event);
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index eecb42273d59..9c35170fb379 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -135,6 +135,7 @@ union perf_event {
 void perf_event__print_totals(void);
 
 struct perf_session;
+struct thread_map;
 
 typedef int (*perf_event__handler_synth_t)(union perf_event *event, 
 					   struct perf_session *session);
@@ -142,8 +143,9 @@ typedef int (*perf_event__handler_t)(union perf_event *event,
 				     struct perf_sample *sample,
 				      struct perf_session *session);
 
-int perf_event__synthesize_thread(pid_t pid, perf_event__handler_t process,
-				  struct perf_session *session);
+int perf_event__synthesize_thread_map(struct thread_map *threads,
+				      perf_event__handler_t process,
+				      struct perf_session *session);
 int perf_event__synthesize_threads(perf_event__handler_t process,
 				   struct perf_session *session);
 int perf_event__synthesize_kernel_mmap(perf_event__handler_t process,