From 90d86ca370f1456e1e656b23d3f05d0614d0b8cc Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@gmail.com>
Date: Sun, 8 Jan 2012 02:25:27 +0900
Subject: [PATCH] --- yaml --- r: 285085 b: refs/heads/master c:
 cdce445906852d90efdc773ca7ba460e6e41664d h: refs/heads/master i:   285083:
 4c6494926cc11f6b674b7d94a27a598531b111b0 v: v3

---
 [refs]                         | 2 +-
 trunk/tools/perf/builtin-top.c | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 5beb9c3751ce..177e806e8986 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c30ab8aa084843159b4679e9a3d7f63187d5906a
+refs/heads/master: cdce445906852d90efdc773ca7ba460e6e41664d
diff --git a/trunk/tools/perf/builtin-top.c b/trunk/tools/perf/builtin-top.c
index d89dec90103e..8f80df896038 100644
--- a/trunk/tools/perf/builtin-top.c
+++ b/trunk/tools/perf/builtin-top.c
@@ -888,6 +888,10 @@ static void perf_top__start_counters(struct perf_top *top)
 				ui__warning("The %s event is not supported.\n",
 					    event_name(counter));
 				goto out_err;
+			} else if (err == EMFILE) {
+				ui__warning("Too many events are opened.\n"
+					    "Try again after reducing the number of events\n");
+				goto out_err;
 			}
 
 			ui__warning("The sys_perf_event_open() syscall "