On Thu 15-06-17 12:09:01, Theodore Dubois wrote: > This can be verified with a simple test program. I'm not sure if this is > a kernel bug or a documentation bug, though...
THis is not a bug. You are not allowed to mmap anything below /proc/sys/vm/mmap_min_addr. So your patch to update documentation would have to mention this sysctl to be correct. > --- > man2/mmap.2 | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/man2/mmap.2 b/man2/mmap.2 > index d1942b52a..58361c837 100644 > --- a/man2/mmap.2 > +++ b/man2/mmap.2 > @@ -515,6 +515,13 @@ was mounted no-exec. > .\" (Since 2.4.25 / 2.6.0.) > .TP > .B EPERM > +The > +.I addr > +argument is 0 and > +.B MAP_FIXED > +is specified. > +.TP > +.B EPERM > The operation was prevented by a file seal; see > .BR fcntl (2). > .TP > -- > 2.13.1 -- Michal Hocko SUSE Labs
