linux-kernel - Re: [PATCH] man ptrace: add extended description of various ptrace quirks

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Message-ID: <CAK1hOcNV+Gn2VsMk5zF40J3dw8kkgqQkpphOowa_KiHFd=uR-w@mail.gmail.com>
Date:	Fri, 23 Sep 2011 11:31:39 +0200
From:	Denys Vlasenko <vda.linux@...glemail.com>
To:	mtk.manpages@...il.com
Cc:	Oleg Nesterov <oleg@...hat.com>,
	Jan Kratochvil <jan.kratochvil@...hat.com>,
	linux-kernel@...r.kernel.org, Tejun Heo <tj@...nel.org>,
	Michael Kerrisk <mtk.manpages@...glemail.com>
Subject: Re: [PATCH] man ptrace: add extended description of various ptrace quirks

On Wed, Sep 21, 2011 at 7:10 AM, Michael Kerrisk <mtk.manpages@...il.com> wrote:
>>> +Tracer can not assume that tracee ALWAYS ends its life by reporting
>>> +WIFEXITED(status) or WIFSIGNALED(status).
>>> +.LP
>>> +.\" or can it? Do we include such a promise into ptrace API?
>>
>> IIRC, we already discussed this... The traced group leader can
>> disappear during mt-exec, otherwise the tracee can never go away
>> silently.

>From userspace perspective, traced group leader doesn't go away
silently, it's execing thread who goes away silently.

> Does your patch need any revision in the light of Oleg's comments?

No, it does not. Please commit it to manpage git.

-- 
vda
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