On 1/9/20 12:57 AM, Daniel Colascione wrote: > Somewhat surprisingly, perf_event_open can fail with EINTR when trying > to enable perf reporting for a uprobe that's already been configured > for use with ftrace. Mention this error in the man page. Thanks, Daniel. Patch applied. Cheers, Michael > diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2 > index 25876c36c..b9128f542 100644 > --- a/man2/perf_event_open.2 > +++ b/man2/perf_event_open.2 > @@ -3228,6 +3228,10 @@ values are out of range or set reserved bits; > the generic event selected is not supported; or > there is not enough room to add the selected event. > .TP > +.B EINTR > +Returned when trying to mix perf and ftrace handling > +for a uprobe. > +.TP > .B EMFILE > Each opened event uses one file descriptor. > If a large number of events are opened, > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/
