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From: John-Mark Gurney <jmg@FreeBSD.org>
Date: Wed, 19 Jan 2011 22:16:42 +0000 (UTC)
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Subject: svn commit: r217613 - head/share/man/man9
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Author: jmg
Date: Wed Jan 19 22:16:42 2011
New Revision: 217613
URL: http://svn.freebsd.org/changeset/base/217613

Log:
  document that even when wakeup_one is used to wakeup, msleep and friends
  may still return a non-zero value... You are not guaranteed to get a one
  to one mapping between wakeup_one and zero return values...
  
  Reviewed by:	kib
  MFC after:	3 days

Modified:
  head/share/man/man9/sleep.9

Modified: head/share/man/man9/sleep.9
==============================================================================
--- head/share/man/man9/sleep.9	Wed Jan 19 22:15:12 2011	(r217612)
+++ head/share/man/man9/sleep.9	Wed Jan 19 22:16:42 2011	(r217613)
@@ -255,6 +255,14 @@ pay particular attention to ensure that 
 same
 .Fa chan .
 .Sh RETURN VALUES
+When awakened by a call to
+.Fn wakeup
+or
+.Fn wakeup_one ,
+if a signal is pending and
+.Dv PCATCH
+is specified,
+a non-zero error code is returned.
 If the thread is awakened by a call to
 .Fn wakeup
 or