Index: LVM2.2.02.61/daemons/cmirrord/functions.c
===================================================================
--- LVM2.2.02.61.orig/daemons/cmirrord/functions.c	2010-01-22 08:43:28.000000000 +0800
+++ LVM2.2.02.61/daemons/cmirrord/functions.c	2010-03-04 15:38:48.000000000 +0800
@@ -313,6 +313,23 @@
 	if (r != 2)
 		return -EINVAL;
 
+	/* FIXME Let's check if dm-minor exists first */
+	/* Seems sometime the udev doesn't create the device file in time */
+	sprintf(path_rtn, "/dev/dm-%d", minor);
+	int tmpi = 0;
+	while ( tmpi ++ <= 4 ) {
+		stat(path_rtn, &statbuf);
+		if (S_ISBLK(statbuf.st_mode) &&
+				(major(statbuf.st_rdev) == major) &&
+				(minor(statbuf.st_rdev) == minor)) {
+			LOG_DBG("We found the dm-%d device", minor);
+			return 0;
+		} else {
+			LOG_DBG("We don't find dm-%d device", minor);
+		}
+		sleep(1);
+	}
+
 	/* FIXME dm_dir() */
 	LOG_DBG("Checking /dev/mapper for device %d:%d", major, minor);
 	/* Check /dev/mapper dir */