Why I can't trace linux process's childs with truss?

[Garrett Cooper]

On Fri, Sep 10, 2010 at 12:07 PM, Yuri <yuri at rawbw.com> wrote:
> I am trying to get the log of all system calls that skype makes with truss
> -f /usr/local/share/skype/skype
> For some reason the resulting log only has the leading process calls and
> nothing from it's 8 childs.
> Truss doesn't show any 'cloned' processes. Is this a bug in truss that it
> doesn't follow 'cloned' processes?
>
> Is there any workaround or other way I can debug skype? strace doesn't work
> on amd64.
> I am primarily interested why it can't read /dev/video0 device, created by
> webcamd.

It doesn't look like ptrace support has been added into the
linuxulator, yet.. but I could be wrong.
-Garrett