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I believe this is related to JENKINS-25218 on the basis of the following portion of the stack trace:
"Executor #0 for DE-DD-0414 : executing srm_dev_unit_tests #2159" prio=6 tid=0x3afae400 nid=0x13e4 in Object.wait() [0x3db5f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:503)
at org.jenkinsci.remoting.nio.FifoBuffer.write(FifoBuffer.java:336)
- locked <0x16b61528> (a org.jenkinsci.remoting.nio.FifoBuffer)
at org.jenkinsci.remoting.nio.NioChannelHub$NioTransport.writeBlock(NioChannelHub.java:196)
at hudson.remoting.AbstractByteArrayCommandTransport.write(AbstractByteArrayCommandTransport.java:83)
at hudson.remoting.Channel.send(Channel.java:545)
- locked <0x16b43950> (a hudson.remoting.Channel)
at hudson.remoting.ProxyOutputStream._write(ProxyOutputStream.java:163)
- locked <0x16f1eb48> (a hudson.remoting.ProxyOutputStream)
at hudson.remoting.ProxyOutputStream.write(ProxyOutputStream.java:109)
at hudson.remoting.RemoteOutputStream.write(RemoteOutputStream.java:110)
at java.security.DigestOutputStream.write(Unknown Source)
at hudson.remoting.RemoteOutputStream.write(RemoteOutputStream.java:110)
at hudson.Util.copyStream(Util.java:448)
at hudson.FilePath$37.invoke(FilePath.java:1827)
at hudson.FilePath$37.invoke(FilePath.java:1821)
at hudson.FilePath.act(FilePath.java:920)
at hudson.FilePath.act(FilePath.java:893)
at hudson.FilePath.copyTo(FilePath.java:1821)
at hudson.plugins.copyartifact.FingerprintingCopyMethod.copyOne(FingerprintingCopyMethod.java:79)
at hudson.plugins.copyartifact.FingerprintingCopyMethod.copyAll(FingerprintingCopyMethod.java:68)
at hudson.plugins.copyartifact.CopyArtifact.perform(CopyArtifact.java:368)
at hudson.plugins.copyartifact.CopyArtifact.perform(CopyArtifact.java:306)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:745)
at hudson.model.Build$BuildExecution.build(Build.java:198)
at hudson.model.Build$BuildExecution.doRun(Build.java:159)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:518)
at hudson.model.Run.execute(Run.java:1706)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:231)
While the NioChannelHub is not blocked:
"NioChannelHub keys=1 gen=1280943: Computer.threadPoolForRemoting [#2]" daemon prio=6 tid=0x3abda400 nid=0x12f0 runnable [0x39f6f000]
java.lang.Thread.State: RUNNABLE
at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
at sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.doSelect(Unknown Source)
at sun.nio.ch.SelectorImpl.lockAndDoSelect(Unknown Source)
- locked <0x13e58190> (a sun.nio.ch.Util$2)
- locked <0x13e581a0> (a java.util.Collections$UnmodifiableSet)
- locked <0x13e58118> (a sun.nio.ch.WindowsSelectorImpl)
at sun.nio.ch.SelectorImpl.select(Unknown Source)
at sun.nio.ch.SelectorImpl.select(Unknown Source)
at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:478)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
I find it suspicious that the writing thread is stuck in the same point as the livelock of JENKINS-25218.
It would be good if the original reporter could confirm if the issue is still present and if the issue is bypassed by disabling the NioHub transport
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