This bug is currently about sightings of the following failure mode
on linux-x64 machines only:

    Cannot get VM for test: java.net.SocketTimeoutException: Accept timed out

The macosx version of this bug is here:

        JDK-8291361 misc test failures on macOS due to "Cannot get VM for test: java.net.SocketTimeoutException: Accept timed out"

The windows-x64 version of this bug is here:

        JDK-8232179 misc test failures on windows-x64 due to "Cannot get VM for test: java.net.SocketTimeoutException: Accept timed out"

Below is the original sighting information:

The following test failed in the JDK21 CI:

compiler/codegen/Test6823354.java

Here's a snippet from the log file:

#section:compile
----------messages:(7/430)----------
command: compile /opt/mach5/mesos/work_dir/jib-master/install/jdk-21+27-2332/src.full/open/test/hotspot/jtreg/compiler/codegen/Test6823354.java
reason: .class file out of date or does not exist
started: Fri Jun 16 06:44:10 UTC 2023
Additional options from @modules: --add-modules java.base --add-exports java.base/jdk.internal.misc=ALL-UNNAMED
Mode: agentvm
finished: Fri Jun 16 08:13:52 UTC 2023
elapsed time (seconds): 5381.177
----------configuration:(0/0)----------
----------rerun:(38/7369)*----------

<snip>

result: Error. Cannot get VM for test: java.net.SocketTimeoutException: Accept timed out


Please note that this failure happened in the compile phase of
the test and has nothing to do with the test itself. The error msg
is coming from JTREG itself and has nothing to do with the test
we're trying to compile or execute. I'm starting this bug in
hotspot/runtime simply as a place to start tracking these strange
failures.