diff -r 05dd6144d434 -r adbd1504c998 src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
--- a/src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp	Mon Oct 14 08:59:12 2019 +0200
+++ b/src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp	Mon Oct 14 11:03:13 2019 +0200
@@ -964,7 +964,6 @@
     ShenandoahHeapRegion* r;
     while ((r =_cs->claim_next()) != NULL) {
       assert(r->has_live(), "Region " SIZE_FORMAT " should have been reclaimed early", r->region_number());
-      assert(r->is_conc_move_allowed(), "Region " SIZE_FORMAT " should be movable", r->region_number());
       _sh->marked_object_iterate(r, &cl);
 
       if (ShenandoahPacing) {