The following test timed out in the JDK21 CI:

vmTestbase/nsk/jdi/VirtualMachine/name/name001/TestDescription.java

Here's a snippet from the stdout log file:

----------System.err:(19/1303)----------
nsk.share.Failure: Connection for PipeIO Listener Thread at port 52120 wasn't accepted in 300000ms
at nsk.share.jpda.BasicSocketConnection.accept(SocketConnection.java:174)
at nsk.share.jpda.SocketConnection.accept(SocketConnection.java:453)
at nsk.share.jpda.SocketIOPipe$ListenerThread.run(SocketIOPipe.java:225)
at nsk.share.jpda.SocketIOPipe.connect(SocketIOPipe.java:279)
at nsk.share.jpda.IOPipe.connect(IOPipe.java:99)
at nsk.share.jpda.SocketIOPipe.readln(SocketIOPipe.java:188)
at nsk.jdi.VirtualMachine.name.name001.runThis(name001.java:130)
at nsk.jdi.VirtualMachine.name.name001.run(name001.java:64)
at nsk.jdi.VirtualMachine.name.name001.main(name001.java:59)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:578)
at com.sun.javatest.regtest.agent.MainWrapper$MainThread.run(MainWrapper.java:125)
at java.base/java.lang.Thread.run(Thread.java:1623)

JavaTest Message: Test threw exception: nsk.share.Failure: Connection for PipeIO Listener Thread at port 52120 wasn't accepted in 300000ms
JavaTest Message: shutting down test

Failed to get a connection in 5 minutes. The machine doesn't
appear to be overloaded according to top:

Processes: 360 total, 2 running, 1 stuck, 357 sleeping, 1246 threads
2023/02/24 07:19:07
Load Avg: 2.03, 5.70, 6.09
CPU usage: 2.77% user, 6.66% sys, 90.55% idle
SharedLibs: 1519M resident, 213M data, 553M linkedit.
MemRegions: 67361 total, 2464M resident, 164M private, 602M shared.
PhysMem: 14G used (2769M wired), 18G unused.
VM: 2062G vsize, 2321M framework vsize, 0(0) swapins, 0(0) swapouts.
Networks: packets: 370666474/963G in, 274645964/785G out.
Disks: 17781139/346G read, 74515709/1874G written.