Index: libcfa/src/concurrency/kernel.cfa
===================================================================
--- libcfa/src/concurrency/kernel.cfa	(revision c9603315ea21ea420cca7496661da95111be0209)
+++ libcfa/src/concurrency/kernel.cfa	(revision 7ee81536a3be02d074a5a1148ab8e900de43dbfc)
@@ -422,5 +422,5 @@
 		default:
 			// This makes no sense, something is wrong abort
-			abort();
+			abort("Thread %p (%s) has mismatch park/unpark\n", thrd, thrd->self_cor.name);
 	}
 }