The following test is failing in Mach5 Tier5:

jdk/jfr/jvm/TestWaste.java

This is a new test added by:

JDK-8282153 JFR: Check for recording waste

Here's a snippet from the log file:

#section:main
----------messages:(5/317)----------
command: main -XX:TLABSize=2k jdk.jfr.jvm.TestWaste
reason: User specified action: run main/othervm -XX:TLABSize=2k jdk.jfr.jvm.TestWaste
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules jdk.jfr --add-exports jdk.jfr/jdk.jfr.internal.test=ALL-UNNAMED
elapsed time (seconds): 25.505
----------configuration:(5/167)----------
Boot Layer
  add modules: jdk.jfr
  limit modules: java.base jdk.jfr
  add exports: jdk.jfr/jdk.jfr.internal.test ALL-UNNAMED

----------System.out:(0/0)----------
----------System.err:(0/0)----------
----------rerun:(40/7686)*----------

<snip>

result: Failed. Unexpected exit from test [exit code: 139]

The test fails with a core file, but does not create an hs_err_pid.
The failure appears to be happening on all platforms.

The test task's JVM args are: --limit-modules=java.base,jdk.jfr