diff options
| -rw-r--r-- | man2/perf_event_open.2 | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2 index 8d985b398a..6d77d970d9 100644 --- a/man2/perf_event_open.2 +++ b/man2/perf_event_open.2 @@ -3211,10 +3211,11 @@ This means to see if a given set of events works you have to start, then read before you know for sure you can get valid measurements. -Prior to Linux 2.6.34, event constraints were not enforced by the kernel. +Prior to Linux 2.6.34, +.\" FIXME . cannot find a kernel commit for this one +event constraints were not enforced by the kernel. In that case, some events would silently return "0" if the kernel scheduled them in an improper counter slot. -.\" FIXME: cannot find a kernel commit for this one Prior to Linux 2.6.34, there was a bug when multiplexing where the wrong results could be returned. |