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Document the security.bsd.unprivileged_idprio in idprio(1) in addition

to rtprio(2).

Approved by:	wblock
MFC after:	3 days
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1 parent e35ca8a commit 09f93d334b66dcf185c36199d88d367b46a2066e @grimreaper grimreaper committed Sep 30, 2012
Showing with 9 additions and 1 deletion.
  1. +9 −1 usr.sbin/rtprio/rtprio.1
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@@ -30,7 +30,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd July 23, 1994
+.Dd September 29, 2012
.Dt RTPRIO 1
.Os
.Sh NAME
@@ -113,6 +113,14 @@ highest priority
of 0 means "the current process".
.Pp
Only root is allowed to set realtime or idle priority for a process.
+A user may modify the idle priority of their own processes if the
+.Xr sysctl 8
+variable
+.Va security.bsd.unprivileged_idprio
+is set to non-zero.
+Note that this increases the chance that a deadlock can occur
+if a process locks a required resource and then does
+not get to run.
.Sh EXIT STATUS
If
.Nm

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