Alan Cox wrote:
>
> > <slaps head> swapper doesn't know how to reap children, and
> > AFAIK there's no way for a kernel thread to fully clean itself
> > up. This is always done by the parent.
>
> Make daemonize() move threads with parent 0 to parent 1
Reparenting would require diving inside this lot:
/*
* pointers to (original) parent process, youngest child, younger sibling,
* older sibling, respectively. (p->father can be replaced with
* p->p_pptr->pid)
*/
struct task_struct *p_opptr, *p_pptr, *p_cptr, *p_ysptr, *p_osptr;
struct list_head thread_group;
plus maybe rewriting pgrps, sessions, gids, etc. Challenging.
Plus it would mean that the kernel requires, for its
correct operation, that process "1" is a child reaper.
Is this a good thing?
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