Re: Processes with hidden PID files in /proc

[Bernd Eckenfels]

In article <20061213180801.A16952@xxxxxxxxxxxxxxxxxx> you wrote:
> I've Googled on this enough to find out that these are Linux threads,
> that "ps -m" will show them, that "ls -a /proc" will show /proc/.PPID,
> etc, but I'm still wondering what exact sequence of system calls will
> create a process like this?

clone(2) can be used to create a thread in a new thread group. If that
thread forks, the resulting child has the (invisible) thread group as parent
pid.

Gruss
Bernd
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