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Bug
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Resolution: Fixed
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Critical
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jenkins v1.634
"Handling POST /configSubmit from 10.160.255.74 : RequestHandlerThread[#17137]": waiting for ownable synchronizer 0x00007f3a5d901708, (a java.util.concurrent.locks.ReentrantLock$NonfairSync), which is held by "Computer.threadPoolForRemoting [#31767]" "Computer.threadPoolForRemoting [#31767]": waiting to lock monitor 0x00007f38ce077bc8 (object 0x00007f3a7c8a10c8, a hudson.plugins.ec2.EC2Computer), which is held by "Handling POST /configSubmit from 10.160.255.74 : RequestHandlerThread[#17137]" "Handling POST /configSubmit from 10.160.255.74 : RequestHandlerThread[#17137]": at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00007f3a5d901708> (a java.util.concurrent.locks.ReentrantLock$NonfairSync) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireQueued(AbstractQueuedSynchronizer.java:870) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:1199) at java.util.concurrent.locks.ReentrantLock$NonfairSync.lock(ReentrantLock.java:209) at java.util.concurrent.locks.ReentrantLock.lock(ReentrantLock.java:285) at hudson.model.Queue._withLock(Queue.java:1291) at hudson.model.Queue.withLock(Queue.java:1176) at hudson.model.Computer.setNumExecutors(Computer.java:837) - locked <0x00007f3a7c8a10c8> (a hudson.plugins.ec2.EC2Computer) at hudson.model.Computer.kill(Computer.java:792) at hudson.slaves.SlaveComputer.kill(SlaveComputer.java:665) at hudson.model.AbstractCIBase.killComputer(AbstractCIBase.java:86) at hudson.model.AbstractCIBase.updateComputerList(AbstractCIBase.java:205) at jenkins.model.Jenkins.updateComputerList(Jenkins.java:1249) at jenkins.model.Jenkins.doConfigSubmit(Jenkins.java:2924) - locked <0x00007f3a5c073f20> (a hudson.model.Hudson) "Computer.threadPoolForRemoting [#31767]": at hudson.model.Computer.setNumExecutors(Computer.java:830) - waiting to lock <0x00007f3a7c8a10c8> (a hudson.plugins.ec2.EC2Computer) at hudson.model.Computer.inflictMortalWound(Computer.java:809) at hudson.model.AbstractCIBase$2.run(AbstractCIBase.java:199) at hudson.model.Queue._withLock(Queue.java:1293) at hudson.model.Queue.withLock(Queue.java:1176) at hudson.model.AbstractCIBase.updateComputerList(AbstractCIBase.java:169) at jenkins.model.Jenkins.updateComputerList(Jenkins.java:1249) at jenkins.model.Nodes$2.run(Nodes.java:136) at hudson.model.Queue._withLock(Queue.java:1293) at hudson.model.Queue.withLock(Queue.java:1176) at jenkins.model.Nodes.addNode(Nodes.java:132) at jenkins.model.Jenkins.addNode(Jenkins.java:1744)
Code changed in jenkins
User: Ted
Path:
core/src/main/java/hudson/model/Computer.java
http://jenkins-ci.org/commit/jenkins/c7fd90a8796fe0ad80bfe37a9837af4515fbf5cb
Log:
fix
JENKINS-31768dead lock while removing computer