--- multipath-tools.old/kpartx/kpartx.c	2008-07-23 22:49:52.000000000 +0200
+++ multipath-tools/kpartx/kpartx.c	2009-03-06 13:32:49.000000000 +0100
@@ -474,6 +474,7 @@ main(int argc, char **argv){
 			d = c;
 			while (c) {
 				for (j = 0; j < n; j++) {
+					uint64_t start;
 					int k = slices[j].container - 1;
 
 					if (slices[j].size == 0)
@@ -484,7 +485,7 @@ main(int argc, char **argv){
 						continue;
 
 					/* Skip all simple slices */
-					if (k < 0)
+					if (slices[j].container == 0)
 						continue;
 
 					/* Check container slice */
@@ -499,10 +500,11 @@ main(int argc, char **argv){
 					}
 					strip_slash(partname);
 
+					start = slices[j].start - slices[k].start;
 					if (safe_sprintf(params, "%d:%d %" PRIu64,
 							 slices[k].major,
 							 slices[k].minor,
-							 slices[j].start)) {
+							 start)) {
 						fprintf(stderr, "params too small\n");
 						exit(1);
 					}