Messages in this thread Patch in this message | | | Date | Sat, 2 Sep 2006 21:22:16 +0400 | From | Oleg Nesterov <> | Subject | [PATCH] eligible_child: remove an obsolete ->tgid check |
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It is not possible to find a sub-thread in ->children/->ptrace_children lists, ptrace_attach() does not allow to attach to sub-threads.
Even if it was possible to ptrace the task from the same thread group, we can't allow to release ->group_leader while there are others (ptracer) threads in the same group.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
--- 2.6.18-rc4/kernel/exit.c~ 2006-09-02 21:08:59.000000000 +0400 +++ 2.6.18-rc4/kernel/exit.c 2006-09-02 21:09:12.000000000 +0400 @@ -1051,7 +1051,7 @@ static int eligible_child(pid_t pid, int * Do not consider thread group leaders that are * in a non-empty thread group: */ - if (current->tgid != p->tgid && delay_group_leader(p)) + if (delay_group_leader(p)) return 2; if (security_task_wait(p))
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