diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/perf/builtin-record.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c index 771533ced6a..6e4a39328b3 100644 --- a/tools/perf/builtin-record.c +++ b/tools/perf/builtin-record.c @@ -280,7 +280,8 @@ try_again: int err = errno; if (err == EPERM || err == EACCES) - die("Permission error - are you root?\n"); + die("Permission error - are you root?\n" + "\t Consider tweaking /proc/sys/kernel/perf_event_paranoid.\n"); else if (err == ENODEV && profile_cpu != -1) die("No such device - did you specify an out-of-range profile CPU?\n"); |