Im using Hudson on a windows xp machine with cygwin.
the slaves connected using cygwin ssh.

In the last 2 releases of hudson,
Over a few hours, for some reason heaps of ssh.exe sessions are started.
I have a few slaves which as offline. Whenever hudson try's to connect to them
it starts a new ssh.exe session but dosnt kill it when the connection failes.

I noticed the following error caused an extra 4 ssh sessions to be started.

SEVERE: Unable to launch the slave agent for linux02
java.io.EOFException: unexpected stream termination
at hudson.remoting.Channel.<init>(Channel.java:258)
at hudson.model.Slave$ComputerImpl.setChannel(Slave.java:390)
at hudson.model.Slave$ComputerImpl$1.run(Slave.java:342)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:885)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:907)
at java.lang.Thread.run(Thread.java:619)
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