linux-kernel - Re: [RFC PATCH] set TASK_TRACED before arch

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Message-ID: <3877989d0805251830w70f19e4cu46fbc32148217749@mail.gmail.com>
Date:	Mon, 26 May 2008 09:30:39 +0800
From:	"Luming Yu" <luming.yu@...il.com>
To:	"Roland McGrath" <roland@...hat.com>
Cc:	"Petr Tesarik" <ptesarik@...e.cz>,
	LKML <linux-kernel@...r.kernel.org>, linux-ia64@...r.kernel.org
Subject: Re: [RFC PATCH] set TASK_TRACED before arch_ptrace code to fix a race

On Mon, May 26, 2008 at 8:15 AM, Roland McGrath <roland@...hat.com> wrote:
>> "deliver" here I mean get_signal_to_deliver()...
>
> This can never happen inside ptrace_stop.
> So your line of inquiry doesn't make sense to me.

if happens, it should be a bug, right?

>
> Please tell us the exact code path you think is happening in the error case
> you can reproduce.
>
I will try to customize kernel to capture call trace for a precise code path.

--Luming
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