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DateSun, 9 Apr 2006 01:23:43 +0400
FromOleg Nesterov <>
SubjectRe: [PATCH rc1-mm] de_thread: fix deadlockable process addition
On 04/09, Oleg Nesterov wrote:
>
> proc_task_readdir:
>
> first_tid() returns old_leader
>
> next_tid() returns new_leader
>
> de_thread:
> old_leader->group_leader = new_leader;
>
>
> next_rid() returns old_leader again,
> because it is not thread_group_leader()
> anymore

I think something like this for next_tid() is sufficient:

- if (thread_group_leader(pos))
+ if (pos->pid == pos->tgid)
We can also do the same change in first_tgid().

Oleg.

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