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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