linux-kernel - Re: [PATCH V2] x86, cpu: trivial printk formatting fixes

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Message-ID: <20141103101049.GA27384@pd.tnic>
Date:	Mon, 3 Nov 2014 11:10:49 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Steven Honeyman <stevenhoneyman@...il.com>
Cc:	Joe Perches <joe@...ches.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, Jiri Kosina <trivial@...nel.org>,
	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH V2] x86, cpu: trivial printk formatting fixes

On Sun, Nov 02, 2014 at 11:56:42AM +0000, Steven Honeyman wrote:
> A 2 line printk makes dmesg output messy, because the second line does not get a timestamp.
> For example:
> 
> [    0.012863] CPU0: Thermal monitoring enabled (TM1)
> [    0.012869] Last level iTLB entries: 4KB 1024, 2MB 1024, 4MB 1024
> Last level dTLB entries: 4KB 1024, 2MB 1024, 4MB 1024, 1GB 4
> [    0.012958] Freeing SMP alternatives memory: 28K (ffffffff81d86000 - ffffffff81d8d000)
> [    0.014961] dmar: Host address width 39
> 
> V2: Revert change to log level, only fix the newline formatting issue
> 
> Signed-off-by: Steven Honeyman <stevenhoneyman@...il.com>

Yeah, patch is fine. I'm sorry that I forgot to ask you to add the
reasoning *why* this change is needed, i.e., all the details about dmesg
accessing /dev/kmsg directly and so on.

I think we want to explain why *really* this change is being done as
some old dmesg, as we saw, do work because they're using syslog(2) and
so on...

Thanks.

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
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