Sometimes hudson hangs on the start of the job.
Nothing is shown in Console Output.

When i abort the build from the hudson interface i get this mesage in Console
Output:
FATAL: SCM check out aborted
java.lang.InterruptedException
at java.lang.Object.wait(Native Method)
at java.lang.Thread.join(Thread.java:1095)
at java.lang.Thread.join(Thread.java:1148)
at hudson.Proc$LocalProc.join(Proc.java:101)
at hudson.scm.CVSSCM.run(CVSSCM.java:746)
at hudson.scm.CVSSCM.run(CVSSCM.java:754)
at hudson.scm.CVSSCM.checkout(CVSSCM.java:285)
at hudson.scm.CVSSCM.checkout(CVSSCM.java:218)
at hudson.model.AbstractProject.checkout(AbstractProject.java:467)
at
hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:160)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:126)
at hudson.model.Run.run(Run.java:576)
at hudson.model.Build.run(Build.java:107)
at hudson.model.ResourceController.execute(ResourceController.java:66)
at hudson.model.Executor.run(Executor.java:59)
Publishing Javadoc
Recording test results
No test report files were found. Configuration error?
finished: FAILURE

Later builds also hang, until I restart hudson.