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Date: Thu, 09 Dec 2010 18:07:54 +0100 From: Eric Dumazet <eric.dumazet@...il.com> To: Américo Wang <xiyou.wangcong@...il.com> Cc: Oleg Nesterov <oleg@...hat.com>, Florian Mickler <florian@...kler.org>, Ingo Molnar <mingo@...e.hu>, Dave Chinner <david@...morbit.com>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: [regression, 2.6.37-rc1] 'ip link tap0 up' stuck in do_exit() Le vendredi 10 décembre 2010 à 00:47 +0800, Américo Wang a écrit : > Yeah, there is no point that a zombie can trigger a BUG_ON in kenrel. > But it is still interesting to know why it becomes a zombie... > A zombie is very easy to get. Technically speaking, all processes die and become zombies, unless parent said : signal(SIGCLD, SIG_IGN) before fork() The parent is buggy (sudo in this case ?) and doesnt call wait() to 'free' one of its children. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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