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<font face="Verdana">Good day Klaus, </font><br>
<font face="Verdana"><br>
Strange indeed. As I said I didn't notice this before but can't
promise exactly when It started. I don't usually need to trace
why excessive idle CPU ticks are present. I did check the
released (4.2.12) and it does not produce this behavior.<br>
<br>
I do have backups of my builds and can if needed to see where it
started. (at least to the middle of March)<br>
<br>
Question if I may, what is the purpose of the %U in the startup
command (VirtualBox %U)<br>
<br>
<br>
Perry<br>
<br>
<br>
</font>
<div class="moz-cite-prefix">On 06/04/2013 04:06 AM, Klaus Espenlaub
wrote:<br>
</div>
<blockquote cite="mid:51ADAE26.7030907@oracle.com" type="cite">
<pre wrap="">Hi Perry,
On 03.06.2013 23:10, Perry Halbert wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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.
</pre>
</blockquote>
<pre wrap="">
Very very strange, I'm not aware of any intentional code changes in this
area for approx. a year, and actually I have no idea why VBoxHeadless
processes would consistently behave differently. The distinction should
be "VM started through the API" (i.e. anything in the GUI, and
VBoxManage startvm) or "VM started directly" (i.e.
VirtualBox/VBoxHeadless/VBoxSDL --startvm foo). In the latter case
VBoxSVC is not the parent and thus isn't responsible for waiting for the
process exit result.
I can reproduce, so will investigate what's causing this behavior change.
Thanks for letting us know...
Klaus
</pre>
<blockquote type="cite">
<pre wrap="">On 06/01/2013 11:56 AM, Perry Halbert wrote:
</pre>
<blockquote type="cite">
<pre wrap="">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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