[vbox-dev] SVN builds Leaving zombie processes on shutdown of guest

[Perry Halbert]

Strange behavior the last few weeks.

Stopping ( even saved state ) a guest leaves a zombie process on the host.
Each new start and it uses a new pid and the zombie is still there.
Stop all guests and the main manager and all processes including the 
zombie processes finally clear.

Host = Ubuntu 12.04 LTS guest = any.

USER       PID %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
perry     9538  6.0  0.0      0     0 ?        Z    11:36   0:34 
[VirtualBox] <defunct>
perry     9934  4.3  0.0      0     0 ?        Z    11:37   0:22 
[VirtualBox] <defunct>

Normally I would not have seen this but the processor was doing work 
when it should have been idle. I have never seen a zombie process using 
CPU ticks before.  Wait long enough and the %CPU will finally get to 
zero but it seems to take like 20 to 30 minutes to do so.
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