linux-kernel - Re: [PATCH v2 7/7] bug: Move WARN_ON() "cut here" into exception handler

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Message-ID: <4c1ed94a-4dd0-e5cb-0b87-397b512d465e@c-s.fr>
Date:   Thu, 29 Aug 2019 06:55:59 +0200
From:   Christophe Leroy <christophe.leroy@....fr>
To:     Kees Cook <keescook@...omium.org>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Drew Davenport <ddavenport@...omium.org>,
        Arnd Bergmann <arnd@...db.de>,
        "Steven Rostedt (VMware)" <rostedt@...dmis.org>,
        Feng Tang <feng.tang@...el.com>,
        Petr Mladek <pmladek@...e.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>,
        Borislav Petkov <bp@...e.de>,
        YueHaibing <yuehaibing@...wei.com>, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 7/7] bug: Move WARN_ON() "cut here" into exception
 handler


Le 24/08/2019 à 21:08, Kees Cook a écrit :

Euh ... only received this mail yesterday. Same for the other answer.


> On Fri, Aug 23, 2019 at 04:26:59PM +0200, Christophe Leroy wrote:
>>
>>
>> Le 23/08/2019 à 00:56, Andrew Morton a écrit :
>>> On Tue, 20 Aug 2019 09:47:55 -0700 Kees Cook <keescook@...omium.org> wrote:
>>>
>>>> Reply-To: 20190819234111.9019-8-keescook@...omium.org
>>>
>>> Really?
>>
>> That seems correct, that's the "[PATCH 7/7] bug: Move WARN_ON() "cut here"
>> into exception handler" from the series at
>> https://lkml.org/lkml/2019/8/19/1155
>>
>>
>>>
>>>> Subject: [PATCH v2 7/7] bug: Move WARN_ON() "cut here" into exception handler
>>>
>>> It's strange to receive a standalone [7/7] patch.
>>
>> Iaw the Reply_To, I understand it as an update of the 7th patch of the
>> series.
> 
> Was trying to avoid the churn of resending the identical 1-6 patches
> (which are all just refactoring to make 7/7 not a mess).

Yes but Reply-To: means the address we have to use to answer to this email.

I think you wanted to use In-reply-to:

> 
> I can resend the whole series, if that's preferred.

I guess not.

> 
>>>> Reported-by: Christophe Leroy <christophe.leroy@....fr>
>>>> Fixes: Fixes: 6b15f678fb7d ("include/asm-generic/bug.h: fix "cut here" for WARN_ON for __WARN_TAINT architectures")
>>>
>>> I'm seeing double.
> 
> Tracking down all these combinations has been tricky, which is why I did
> the patch 1-6 refactoring: it makes the call hierarchy much easier to
> examine (IMO).

But still, Andrew is seing double ... And me as well :)

Fixes: Fixes:

Christophe

> 
> -Kees
>