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Message-ID: <bda6d13a0604071158x33080de3ya8016dde59c2d97f@mail.gmail.com>
Date: Fri, 7 Apr 2006 11:58:40 -0700
From: "Joshua Hudson" <joshudson@gmail.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Subject: Re: wait4/waitpid/waitid oddness
Cc: linux-kernel@vger.kernel.org
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	 <m1acaxnt1x.fsf@ebiederm.dsl.xmission.com>
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On 4/7/06, Eric W. Biederman <ebiederm@xmission.com> wrote:
> "Albert Cahalan" <acahalan@gmail.com> writes:
>
> > The kernel prohibits:
> >
> > 1. WNOHANG on waitpid/wait4
>
> Not 2.6.17-rc1, and not for a lot of earlier kernels.
> At least not on ingress, and just skimming the code
> I can't see any deeper checks that would prevent this.
>
> > 2. __WALL on waitid
> >
> > Why? I need both at once.
>
> Which kernel is failing, and how?

LKNL 2.6.16.1 has this check. Haven't checked any others.