[PATCH] Don't auto-reap traced children
Oleg Nesterov [Thu, 10 Nov 2005 14:22:18 +0000 (17:22 +0300)]
If a task is being traced we never auto-reap it even if it might look
like its parent doesn't care. The tracer obviously _does_ care.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>

kernel/signal.c

index 1bf3c39..80789a5 100644 (file)
@@ -1499,7 +1499,7 @@ void do_notify_parent(struct task_struct *tsk, int sig)
 
        psig = tsk->parent->sighand;
        spin_lock_irqsave(&psig->siglock, flags);
-       if (sig == SIGCHLD &&
+       if (!tsk->ptrace && sig == SIGCHLD &&
            (psig->action[SIGCHLD-1].sa.sa_handler == SIG_IGN ||
             (psig->action[SIGCHLD-1].sa.sa_flags & SA_NOCLDWAIT))) {
                /*