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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 18 Nov 2016 19:54:25 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/dumpstack: make stack name tags more comprehensible

On Fri, Nov 18, 2016 at 11:46:23AM -0600, Josh Poimboeuf wrote:
> 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>

>  arch/x86/include/asm/stacktrace.h |  3 +--
>  arch/x86/kernel/dumpstack.c       | 12 ++++++------
>  arch/x86/kernel/dumpstack_32.c    | 19 ++++++++-----------
>  arch/x86/kernel/dumpstack_64.c    | 22 ++++++++--------------
>  4 files changed, 23 insertions(+), 33 deletions(-)

And saves lines too, awesome!

Acked-by: Peter Zijlstra (Intel) <peterz@...radead.org>