linux-kernel - Re: [PATCH v2] x86/fault: Decode and print #PF oops in human readable form

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Message-ID: <CAHk-=wgtN9nQBimLuOmBxY8eYqDRhNeBOW_uvnhqtZSFycyHuA@mail.gmail.com>
Date:   Fri, 7 Dec 2018 12:46:30 -0800
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     sean.j.christopherson@...el.com
Cc:     dave.hansen@...ux.intel.com, Andrew Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, bp@...en8.de,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Peter Anvin <hpa@...or.com>,
        Linux List Kernel Mailing <linux-kernel@...r.kernel.org>,
        Rik van Riel <riel@...riel.com>, yu-cheng.yu@...el.com,
        Ingo Molnar <mingo@...nel.org>
Subject: Re: [PATCH v2] x86/fault: Decode and print #PF oops in human readable form

On Fri, Dec 7, 2018 at 11:52 AM Sean Christopherson
<sean.j.christopherson@...el.com> wrote:
>
> Remove the per-bit decoding of the error code and instead print:

The patch looks fine to me, so feel free to add an acked-by, but:

 (a) I'm not the one who wanted the human-legible version in the first
place, since I'm also perfectly ok with just the error code, so my
judgement is obviously garbage wrt this whole thing

 (b) it would be good to have a couple of actual examples of the
printout to judge.

I can certainly imagine how it looks just from the patch, but maybe if
I actually see reality I'd go "eww". Or somebody else goes "eww".

              Linus

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