sched_setattr.2: Add a bit more detail for SCHED_DEADLINE

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man2/sched_setattr.2 b/man2/sched_setattr.2
index 2f8bf77a59dd7af60831b971a3e6eca3fd38fef9..9d559979a9a4922f6cdbe952402d98a011a1c27f 100644 (file)
--- a/man2/sched_setattr.2
+++ b/man2/sched_setattr.2
@@ -173,9 +173,12 @@ algorithm.
 .\" commit 34be39305a77b8b1ec9f279163c7cdb6cc719b91
 This flag allows a
 .BR SCHED_DEADLINE
-task to get informed about run-time overruns through the delivery of
+to get informed about run-time overruns,
+which may be caused by (for example) coarse execution time accounting
+or incorrect parameter assignment.
+Notification takes the form of a 
 .B SIGXCPU
-signals.
+signal which is generated on each overrun.
 .RE
 .TP
 .I sched_nice