On 11.10.2013 10:20, Vince Weaver wrote: > > The following documents the E2BIG error return for perf_event_open(). > > I actually ran into this error the hard way and it took me half a day > to figure out why my ->size value was changing. > > Signed-off-by: Vince Weaver <vincent.weaver@xxxxxxxxx> Thanks, Vince. Applied. Cheers, Michael > diff --git a/man2/perf_event_open.2 b/man2/perf_event_open.2 > index 71a09d5..f4cb5bd 100644 > --- a/man2/perf_event_open.2 > +++ b/man2/perf_event_open.2 > @@ -2121,6 +2121,21 @@ returns the new file descriptor, or \-1 if an error occurred > is set appropriately). > .SH ERRORS > .TP > +.B E2BIG > +Returned if the perf_event_attr > +.I size > +value is too small > +(smaller than > +.BR PERF_ATTR_SIZE_VER0 ), > +too big (larger than the page size), > +or larger than the kernel supports and the extra bytes are not zero. > +When > +.B E2BIG > +is returned, the perf_event_attr > +.I size > +field is over-written by the kernel to be the size of the structure > +it was expecting. > +.TP > .B EINVAL > Returned if the specified event is not available. > .TP > -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ My next Linux/UNIX system programming course: -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
