task_struct's real_parent vs parent members

Hi Mulyadi,

On 26 February 2012 23:48, Mulyadi Santosa [off-list ref] wrote:

I am bit rusty here, but AFAIK sigchld is thrown to the process who
ptrace another process. CMIIW

sigchld's definition [1] says it's sent to the parent process when a
child terminates.

But I do agree that the notion of a parent seems a bit ambiguous when
a process is being ptraced.

ptrace is what I found when looking through some websites, and you may
very well be correct.   But as always, it is good to confirm through
code. :)   Let me try checking the ptrace functions.

Thanks!
-- 
Vimal