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-rw-r--r--share/man/man9/sleep.96
1 files changed, 5 insertions, 1 deletions
diff --git a/share/man/man9/sleep.9 b/share/man/man9/sleep.9
index aa5d66e..1e2cc73 100644
--- a/share/man/man9/sleep.9
+++ b/share/man/man9/sleep.9
@@ -99,7 +99,11 @@ Sleeps at most
\&/ hz seconds (0 means no timeout).
If the
.Va Giant
-lock is not held, then
+lock is not held and
+.Fa mtx
+is
+.Dv NULL ,
+then
.Fa timo
must be non-zero.
If
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