diff -up ksh-20080725/src/cmd/ksh93/sh/jobs.c.ttou ksh-20080725/src/cmd/ksh93/sh/jobs.c
--- ksh-20080725/src/cmd/ksh93/sh/jobs.c.ttou	2008-07-28 08:25:02.000000000 +0200
+++ ksh-20080725/src/cmd/ksh93/sh/jobs.c	2008-07-28 08:27:30.000000000 +0200
@@ -663,9 +663,16 @@ static void job_reset(register struct pr
 {
 	/* save the terminal state for current job */
 #ifdef SIGTSTP
+	Sig_handler_t saved_handler;
+	
+	saved_handler = signal(SIGTTOU, SIG_IGN);
 	job_fgrp(pw,tcgetpgrp(job.fd));
 	if(tcsetpgrp(job.fd,job.mypid) !=0)
+	{
+		signal(SIGTTOU, saved_handler);
 		return;
+	}
+	signal(SIGTTOU, saved_handler);
 #endif	/* SIGTSTP */
 	/* force the following tty_get() to do a tcgetattr() unless fg */
 	if(!(pw->p_flag&P_FG))