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Date: Tue, 17 Aug 2004 10:53:22 -0700
From: Andrew Morton <akpm@osdl.org>
To: vatsa@in.ibm.com
Cc: nathanl@austin.ibm.com, linux-kernel@vger.kernel.org, zwane@linuxpower.ca,
       rusty@rustcorp.com.au, Ingo Molnar <mingo@elte.hu>
Subject: Re: 2.6.8.1-mm1
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Srivatsa Vaddagiri <vatsa@in.ibm.com> wrote:
>
> I found this to be due to task leak in exit code. In release_task:
> 
>  	a. Task is removed from task-list (unhash_process)
>  	b. More processing is done (like proc_pid_flush etc)
>  	   before task finally dies.
> 
>  The problem is the task can get preempted between a and b.

It seems wrong that a task can be preempted so late in its lifetime.  We're
just asking for nasty bugs by permitting that.