linux-kernel - Re: [PATCH v2] x86: fix output of show_stack_log

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Message-ID: <20150220103845.GB19378@pd.tnic>
Date:	Fri, 20 Feb 2015 11:38:45 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Ingo Molnar <mingo@...nel.org>
Cc:	Adrien Schildknecht <adrien+dev@...ischi.me>, tglx@...utronix.de,
	mingo@...hat.com, hpa@...or.com, x86@...nel.org,
	rostedt@...dmis.org, heukelum@...tmail.fm, luto@...capital.net,
	adech.fo@...il.com, masami.hiramatsu.pt@...achi.com,
	akpm@...ux-foundation.org, a.ryabinin@...sung.com,
	fruggeri@...sta.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] x86: fix output of show_stack_log_lvl()

On Fri, Feb 20, 2015 at 09:10:03AM +0100, Ingo Molnar wrote:
> This approach looks good to me, we want to print multi-line 
> messages with the same consistent loglevel.

Right, I'll pick this one up for now as it is obviously correct and
whatever we end up doing to pr_cont() won't influence it.

> Totally unrelated observation #2:
> 
> >  		if (kstack_end(stack))
> >  			break;
> > -		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
> > -			pr_cont("\n");
> 
> > +++ b/arch/x86/kernel/dumpstack_64.c
> 
> >  		if (((long) stack & (THREAD_SIZE-1)) == 0)
> >  			break;
> >  		}
> > -		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
> > -			pr_cont("\n");
> 
> Looks like kstack_end() could be defined on 64-bit as well, 
> unifying the stack printing logic some more?
> 
> ( I'd no go so far as to unify the two functions, but the 
>   closer to each other the better it is to make changes 
>   that affect both of them. )

Adrien, want to take care of that one too?

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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