linux-kernel - Re: [PATCH] x86/dumpstack: make stack name tags more comprehensible

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Date:   Sat, 19 Nov 2016 16:49:46 +0100
From:   Frederic Weisbecker <fweisbec@...il.com>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     "the arch/x86 maintainers" <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH] x86/dumpstack: make stack name tags more comprehensible

2016-11-18 18:46 GMT+01:00 Josh Poimboeuf <jpoimboe@...hat.com>:
> NMI stack dumps are bracked by the following tags:
>
>   <NMI>
>   ...
>   <EOE>
>
> The ending tag is kind of confusing if you don't already know what "EOE"
> means (end of exception).  The same ending tag is also used to mark the
> end of all other exceptions' stacks.  For example:
>
>   <#DF>
>   ...
>   <EOE>
>
> And similarly, "EOI" is used as the ending tag for interrupts:
>
>   <IRQ>
>   ...
>   <EOI>
>
> Change the tags to be more comprehensible by making them symmetrical and
> more XML-esque:
>
>   <NMI>
>   ...
>   </NMI>
>
>   <#DF>
>   ...
>   </#DF>
>
>   <IRQ>
>   ...
>   </IRQ>
>
> Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>

I like that! I hope not too many tools rely on the old namings.
But dmesg isn't supposed to be a stable ABI anyway.

Acked-by: Frederic Weisbecker <fweisbec@...il.com>