The following test timed out in the JDK18 CI:

compiler/c2/cr6589834/Test_ia32.java

Here's a snippet from the log file:

#section:main
----------messages:(7/1255)----------
command: main -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:+IgnoreUnrecognizedVMOptions -XX:+VerifyStack -XX:CompileCommand=compileonly,compiler.c2.cr6589834.InlinedArrayCloneTestCase::* -XX:CompileCommand=dontinline,compiler.c2.cr6589834.InlinedArrayCloneTestCase::invokeArrayClone -XX:CompileCommand=inline,compiler.c2.cr6589834.InlinedArrayCloneTestCase::verifyArguments compiler.c2.cr6589834.Test_ia32
reason: User specified action: run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI -XX:+IgnoreUnrecognizedVMOptions -XX:+VerifyStack -XX:CompileCommand=compileonly,compiler.c2.cr6589834.InlinedArrayCloneTestCase::* -XX:CompileCommand=dontinline,compiler.c2.cr6589834.InlinedArrayCloneTestCase::invokeArrayClone -XX:CompileCommand=inline,compiler.c2.cr6589834.InlinedArrayCloneTestCase::verifyArguments compiler.c2.cr6589834.Test_ia32
Mode: othervm [/othervm specified]
Additional options from @modules: --add-modules java.base,java.compiler,java.management,jdk.internal.jvmstat --add-exports java.base/jdk.internal.misc=ALL-UNNAMED --add-exports jdk.internal.jvmstat/sun.jvmstat.monitor=ALL-UNNAMED
Timeout information:
--- Timeout information end.
elapsed time (seconds): 587.738
----------configuration:(5/230)----------
Boot Layer
  add modules: java.base java.compiler java.management jdk.internal.jvmstat
  add exports: java.base/jdk.internal.misc ALL-UNNAMED
               jdk.internal.jvmstat/sun.jvmstat.monitor ALL-UNNAMED

----------System.out:(4/353)----------
CompileCommand: compileonly compiler/c2/cr6589834/InlinedArrayCloneTestCase.* bool compileonly = true
CompileCommand: dontinline compiler/c2/cr6589834/InlinedArrayCloneTestCase.invokeArrayClone bool dontinline = true
CompileCommand: inline compiler/c2/cr6589834/InlinedArrayCloneTestCase.verifyArguments bool inline = true
Timeout refired 480 times
----------System.err:(0/0)----------
----------rerun:(52/7039)*----------

<snip>

result: Error. Program `c:\ade\mesos\work_dir\jib-master\install\jdk-18+13-651\windows-x64-debug.jdk\jdk-18\fastdebug\bin\java' timed out (timeout set to 480000ms, elapsed time including timeout handling was 587738ms).