test: add some extra tracing command

diff --git a/test/shell/vgchange-maxlv.sh b/test/shell/vgchange-maxlv.sh
index df809737f4a0f53728b6e5a9931d95d51462dde0..a4191a068eed5947cba07908c2f2d26dc1c377c9 100644 (file)
--- a/test/shell/vgchange-maxlv.sh
+++ b/test/shell/vgchange-maxlv.sh
@@ -26,6 +26,8 @@ vgremove -ff $vg
 
 vgcreate $SHARED -l 3 "$vg" "${DEVICES[@]}"
 lvcreate -aey -n one -l 1 $vg
+# to better understand weird race on some old system
+ls -Rla /dev/dm* "$DM_DEV_DIR"
 lvcreate -n snap -s -l 1 $vg/one
 lvcreate -n two -l 1 $vg
 not lvcreate -n three -l 1 $vg