--- sys_pipe.c.orig	2006-11-17 10:21:52.000000000 +0100
+++ sys_pipe.c	2007-08-01 20:08:09.000000000 +0200
@@ -735,9 +735,10 @@
 		 * If the other side is blocked, wake it up saying that
 		 * we want to close it down.
 		 */
+		cpipe->pipe_state |= PIPE_EOF;
 		while (cpipe->pipe_busy) {
 			wakeup(cpipe);
-			cpipe->pipe_state |= PIPE_WANT | PIPE_EOF;
+			cpipe->pipe_state |= PIPE_WANT;
 			tsleep(cpipe, PRIBIO, "pipecl", 0);
 		}