linux-kernel - Re: [PATCH] x86/dumpstack: Walk frames when built with frame pointers

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Message-ID: <20140507173728.GW30445@twins.programming.kicks-ass.net>
Date:	Wed, 7 May 2014 19:37:28 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Richard Yao <ryao@...too.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>,
	the arch/x86 maintainers <x86@...nel.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Tejun Heo <tj@...nel.org>, Vineet Gupta <vgupta@...opsys.com>,
	Jesper Nilsson <jesper.nilsson@...s.com>,
	Jiri Slaby <jslaby@...e.cz>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	kernel@...too.org, Brian Behlendorf <behlendorf1@...l.gov>,
	Frédéric Weisbecker <fweisbec@...il.com>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Jiri Olsa <jolsa@...hat.com>
Subject: Re: [PATCH] x86/dumpstack: Walk frames when built with frame pointers

On Wed, May 07, 2014 at 07:18:22PM +0200, Ingo Molnar wrote:
> 
> Conclusion:
> 
> So to me #4 looks best, and it's 16 lines instead of 31. Not as 
> compact as your mockup that has 13 lines, but pretty close.
> 
> (I'd also do the color tricks on #6, but that's more technically 
> challenging and I also don't look forward fighting the syslog guys 
> over it...)
> 
> I'd guess that some people would prefer #2 or #3, depending on how 
> ergonomic the parentheses and brackets are for them.
> 

Can we get a CONFIG option to retain the old (current) format? My brain
is all used to those and since I use a logging serial console there's no
space issues what so ever.

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