Index: dev/acpica/acpi.c
===================================================================
RCS file: /home/ncvs/src/sys/dev/acpica/acpi.c,v
retrieving revision 1.243
diff -u -r1.243 acpi.c
--- dev/acpica/acpi.c	9 Oct 2007 07:48:07 -0000	1.243
+++ dev/acpica/acpi.c	28 Jan 2008 01:52:19 -0000
@@ -2195,6 +2195,16 @@
 	}
     }
 
+    /* If devd(8) is not running, immediately enter the sleep state. */
+    if (devctl_process_running() == FALSE) {
+	ACPI_UNLOCK(acpi);
+	if (ACPI_SUCCESS(acpi_EnterSleepState(sc, sc->acpi_next_sstate))) {
+	    return (0);
+	} else {
+	    return (ENXIO);
+	}
+    }
+
     /* Now notify devd(8) also. */
     acpi_UserNotify("Suspend", ACPI_ROOT_OBJECT, state);
 
Index: sys/bus.h
===================================================================
RCS file: /home/ncvs/src/sys/sys/bus.h,v
retrieving revision 1.78
diff -u -r1.78 bus.h
--- sys/bus.h	23 Feb 2007 12:19:07 -0000	1.78
+++ sys/bus.h	27 Jan 2008 08:58:27 -0000
@@ -83,6 +83,7 @@
  * hook to send the message.  However, devctl_queue_data is also
  * included in case devctl_notify isn't sufficiently general.
  */
+boolean_t devctl_process_running(void);
 void devctl_notify(const char *__system, const char *__subsystem,
     const char *__type, const char *__data);
 void devctl_queue_data(char *__data);
Index: kern/subr_bus.c
===================================================================
RCS file: /home/ncvs/src/sys/kern/subr_bus.c,v
retrieving revision 1.201
diff -u -r1.201 subr_bus.c
--- kern/subr_bus.c	27 Jul 2007 11:59:56 -0000	1.201
+++ kern/subr_bus.c	27 Jan 2008 08:58:56 -0000
@@ -499,6 +499,15 @@
 }
 
 /**
+ * @brief Return whether the userland process is running
+ */
+boolean_t
+devctl_process_running(void)
+{
+	return (devsoftc.async_proc != NULL);
+}
+
+/**
  * @brief Queue data to be read from the devctl device
  *
  * Generic interface to queue data to the devctl device.  It is