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Date:   Mon, 29 Apr 2019 16:14:50 +0200
From:   Borislav Petkov <>
To:     Dmitry Vyukov <>
Cc:     Sean Christopherson <>,
        Dave Hansen <>,
        Andy Lutomirski <>,
        Peter Zijlstra <>,
        Thomas Gleixner <>,
        Ingo Molnar <>,
        the arch/x86 maintainers <>,
        "H. Peter Anvin" <>,
        LKML <>,
        Linus Torvalds <>,
        Rik van Riel <>,
        Yu-cheng Yu <>,
        Ingo Molnar <>,
        syzkaller <>
Subject: Re: [PATCH v3 2/2] x86/fault: Decode and print #PF oops in human
 readable form

On Mon, Apr 29, 2019 at 03:58:20PM +0200, Dmitry Vyukov wrote:
> Ideally, such changes are coordinated with kernel testing for gradual
> rollout. Since kernel does not provide an official facility for crash
> parsing, the actual output effectively becomes part of public API.

Well, printk message formats are not an API. I agree, though, that if
this is how kernel testing is going to get told about crashes, then we'd
need some sort of parsing specification which gets changed together with
when the actual messages are changed, so that tools don't break.

Or something slicker and more robust than tools parsing dmesg output...


Good mailing practices for 400: avoid top-posting and trim the reply.

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