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

[Perry Halbert]

More research on this shows that using VBoxHeadless -s <guest> or shift 
start from the main manager does not produce the zombies.

Only normal starting from the main manager or shortcut does.



On 06/01/2013 11:56 AM, Perry Halbert wrote:
> 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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