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  1. WildFly
  2. WFLY-2675

Boot (???) deadlock

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    • Icon: Bug Bug
    • Resolution: Done
    • Icon: Critical Critical
    • 8.0.0.Final
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    • Management
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      A deadlock occurred during a testsuite/domain run:

      http://brontes.lab.eng.brq.redhat.com/viewLog.html?buildId=7356&buildTypeId=WFPR

      The test hung during domain shutdown:

      at org.jboss.as.test.integration.domain.management.util.ProcessWrapper.waitFor(ProcessWrapper.java:97)
      	at org.jboss.as.test.integration.domain.management.util.DomainLifecycleUtil.stop(DomainLifecycleUtil.java:312)
      	- locked <0xa7ac7318> (a org.jboss.as.test.integration.domain.management.util.DomainLifecycleUtil)
      	at org.jboss.as.test.integration.domain.management.util.DomainTestSupport.stop(DomainTestSupport.java:370)
      	at org.jboss.as.test.integration.domain.ServerManagementTestCase.tearDownDomain(ServerManagementTestCase.java:116)
      

      It's possible that's just when the test client hung, and the issue may have occurred at some earlier point. On the thread dump of all processes, one of the servers under the slave HC reported this:

      Found one Java-level deadlock:
      =============================
      "Controller Boot Thread":
        waiting to lock monitor 0x9a2566e0 (object 0xafdc6028, a org.jboss.msc.service.ServiceControllerImpl),
        which is held by "MSC service thread 1-1"
      "MSC service thread 1-1":
        waiting to lock monitor 0x9a2575b8 (object 0xb014ea70, a java.lang.Object),
        which is held by "Controller Boot Thread"
      
      Java stack information for the threads listed above:
      ===================================================
      "Controller Boot Thread":
      	at org.jboss.msc.service.ServiceControllerImpl.removeMonitorNoCallback(ServiceControllerImpl.java:1486)
      	- waiting to lock <0xafdc6028> (a org.jboss.msc.service.ServiceControllerImpl)
      	at org.jboss.msc.service.StabilityMonitor.clear(StabilityMonitor.java:175)
      	- locked <0xb014ea70> (a java.lang.Object)
      	at org.jboss.as.server.BootstrapListener.printBootStatistics(BootstrapListener.java:70)
      	at org.jboss.as.server.ServerService.boot(ServerService.java:345)
      	at org.jboss.as.controller.AbstractControllerService$1.run(AbstractControllerService.java:256)
      	at java.lang.Thread.run(Thread.java:724)
      "MSC service thread 1-1":
      	at org.jboss.msc.service.StabilityMonitor.removeControllerNoCallback(StabilityMonitor.java:151)
      	- waiting to lock <0xb014ea70> (a java.lang.Object)
      	at org.jboss.msc.service.ServiceControllerImpl.transition(ServiceControllerImpl.java:688)
      	at org.jboss.msc.service.ServiceControllerImpl$RemoveTask.run(ServiceControllerImpl.java:2267)
      	- locked <0xafdc6028> (a org.jboss.msc.service.ServiceControllerImpl)
      	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
      	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
      	at java.lang.Thread.run(Thread.java:724)
      

            bstansbe@redhat.com Brian Stansberry
            bstansbe@redhat.com Brian Stansberry
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              Created:
              Updated:
              Resolved: