The following test:

vmTestbase/vm/gc/containers/Combination01/TestDescription.java

failed the following:

guarantee(ZAddress::is_good(value)) failed: Bad oop 0x000008002d7ee210 found at 0x00007f64f53f16e8, expected 0x000010002d7ee210

Here's a snippet from the log file:

# Internal Error (open/src/hotspot/share/gc/z/zVerify.cpp:52), pid=18850, tid=18866
# guarantee(ZAddress::is_good(value)) failed: Bad oop 0x000008002d7ee210 found at 0x00007f64f53f16e8, expected 0x000010002d7ee210
#
# JRE version: Java(TM) SE Runtime Environment (13.0) (fastdebug build 13-ea+0-1466)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (fastdebug 13-ea+0-1466, mixed mode, tiered, z gc, linux-amd64)
# Problematic frame:
# V [libjvm.so+0x1873d1b] ZVerifyRootsClosure::do_oop(oop*)+0xcb