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Date: Wed, 5 Apr 2006 23:38:20 -0400
From: "Albert Cahalan" <acahalan@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: wait4/waitpid/waitid oddness
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The kernel prohibits:

1. WNOHANG on waitpid/wait4
2. __WALL on waitid

Why? I need both at once.