Builds running on the slave hang at the initial pre checkout step
10:42:10 Started by upstream project "Trunk_Master" build number 135
10:42:10 originally caused by:
10:42:10 Started by user Build Team
10:42:10 Starting limited count build: 1
10:42:10 [EnvInject] - Loading node environment variables.
10:42:10 Building remotely on SlaveX in workspace C:\Hudson\workspace\Trunk_TS

Jenkins logs show this error on the slave at the time it is hung.

WARNING hudson.node_monitors.AbstractAsyncNodeMonitorDescriptor monitor

Failed to monitor SlaveX for Free Swap Space
java.util.concurrent.TimeoutException
at hudson.remoting.Request$1.get(Request.java:275)
at hudson.remoting.Request$1.get(Request.java:210)
at hudson.remoting.FutureAdapter.get(FutureAdapter.java:59)
at hudson.node_monitors.AbstractAsyncNodeMonitorDescriptor.monitor(AbstractAsyncNodeMonitorDescriptor.java:97)
at hudson.node_monitors.AbstractNodeMonitorDescriptor$Record.run(AbstractNodeMonitorDescriptor.java:282)

Let me know if you need more details

Thanks
Shobha