From: ebiederm@xmission.com (Eric W. Biederman)
To: "Albert Cahalan" <acahalan@gmail.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: wait4/waitpid/waitid oddness
Date: Fri, 07 Apr 2006 12:23:38 -0600 [thread overview]
Message-ID: <m1acaxnt1x.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <787b0d920604052038i3a75bdb6ic0818d93805b881b@mail.gmail.com> (Albert Cahalan's message of "Wed, 5 Apr 2006 23:38:20 -0400")
"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?
Eric
next prev parent reply other threads:[~2006-04-07 18:24 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-06 3:38 Albert Cahalan
2006-04-07 2:09 ` Joshua Hudson
2006-04-07 5:38 ` Kyle Moffett
2006-04-07 6:40 ` Joshua Hudson
2006-04-07 6:50 ` Neil Brown
2006-04-07 7:09 ` Joshua Hudson
2006-04-07 18:23 ` Eric W. Biederman [this message]
2006-04-07 18:58 ` Joshua Hudson
2006-04-07 19:19 ` Eric W. Biederman
2006-04-07 19:24 ` Joshua Hudson
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