From: Oleg Nesterov <oleg@tv-sign.ru>
Date: Thu, 10 Nov 2005 14:22:18 +0000 (+0300)
Subject: [PATCH] Don't auto-reap traced children
X-Git-Tag: v2.6.14.3~22
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=423885efc678eec81b59e4c200417be58ede9d2f;p=thirdparty%2Fkernel%2Fstable.git

[PATCH] Don't auto-reap traced children

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>
Signed-off-by: Chris Wright <chrisw@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/kernel/signal.c b/kernel/signal.c
index 6904bbbfe1169..0d755c68981e4 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1524,7 +1524,7 @@ 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))) {
 		/*