diff --git a/man2/setresuid.2 b/man2/setresuid.2
index 49cf0f5a1..e9d004273 100644
--- a/man2/setresuid.2
+++ b/man2/setresuid.2
@@ -83,6 +83,12 @@ bring the number of processes belonging to the real user ID
 over the caller's
 .B RLIMIT_NPROC
 resource limit.
+Since Linux 3.1, this error case no longer occurs
+(but robust applications should check for this error);
+see the description of
+.B EAGAIN
+in
+.BR execve (2).
 .TP
 .B EPERM
 The calling process is not privileged (did not have the \fBCAP_SETUID\fP