linux-kernel - Re: init's children list is long and slows reaping children.

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Message-ID: <46169DC5.3020502@zytor.com>
Date:	Fri, 06 Apr 2007 12:21:41 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Oleg Nesterov <oleg@...sign.ru>, Robin Holt <holt@....com>,
	Chris Snook <csnook@...hat.com>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org
Subject: Re: init's children list is long and slows reaping children.

Eric W. Biederman wrote:
>>>
>> Are you saying waitpid() (wait4) *with a pid specified* can return another pid?
>> That definitely sounds like a bug.
> 
> No.
> 
> For the full context look back a couple of messages.
> 
> I'm guessing the issue is nash just calls wait and doesn't check the
> returned pid value, assuming it is the only child it forked returning.
> Which is valid except when you are running as pid == 1.
> 

OK, userspace error :)

	-hpa
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