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From: Randy Dunlap <rdunlap@infradead.org>
To: Prarit Bhargava <prarit@redhat.com>,
	Matt Fleming <matt@console-pimps.org>
Cc: Colin Ian King <colin.king@canonical.com>,
	Borislav Petkov <bp@alien8.de>,
	linux-kernel@vger.kernel.org, lszubowi@redhat.com,
	Matt Fleming <matt.fleming@intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, linux-efi@vger.kernel.org
Subject: Re: [PATCH] x86, efi: print debug values in Kib not MB
Date: Wed, 30 Jul 2014 10:10:24 -0700	[thread overview]
Message-ID: <53D92700.3040803@infradead.org> (raw)
In-Reply-To: <53D9259F.5050307@redhat.com>

On 07/30/14 10:04, Prarit Bhargava wrote:
> 
> 
> On 07/30/2014 11:05 AM, Colin Ian King wrote:
>> On 30/07/14 15:48, Matt Fleming wrote:
>>> On Wed, 30 Jul, at 12:29:32AM, Borislav Petkov wrote:
>>>> On Tue, Jul 29, 2014 at 01:09:21PM -0400, Prarit Bhargava wrote:
>>>>> The current debug print in EFI does
>>>>>
>>>>> [    0.000000] efi: mem84: type=3, attr=0xf, range=[0x00000000645b5000-0x00000000645fb000) (0MB)
>>>>>
>>>>> and rounds off the size to 0MB and isn't very useful.  We should print this in
>>>>> Kib.  After applying this patch we get better info with
>>>>>
>>>>> [    0.000000] efi: mem84: type=3, attr=0xf, range=[0x00000000645b5000-0x00000000645fb000) (280kiB)
>>>>
>>>> Turning this into kiB unconditionally won't always work ok:
>>>>
>>>> First of all, there might be something which parses that output so I'd
>>>> make sure I'm not breaking that. Maybe fwts... Matt will know.
>>>
>>> I'm not aware of anything that parses the dmesg output, but I'm
>>> including Colin in case he has any insight.
>>>
>> That won't break fwts.
> 
> Matt -- could you make a decision on whether or not this should be strictly in
> KiB or if it should be a rolling KiB, Mib, and GiB?
> 
> My issue is simply that I'd like to know *exactly* how big each range is and not
> have it rounded off.  Others think that it is easier to read Mib & Gib ...

It is easier to read in MiB or GiB IMHO, but since it is debug info,
exact is good.  It would be even better [more readable] to use commas
(or periods/dots) to separate it into groups of 3 digits.


-- 
~Randy

  reply	other threads:[~2014-07-30 17:10 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-07-29 17:09 [PATCH] x86, efi: print debug values in Kib not MB Prarit Bhargava
     [not found] ` <1406653761-3884-1-git-send-email-prarit-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-07-29 20:29   ` David Rientjes
2014-07-29 22:02     ` Joe Perches
2014-07-29 22:05       ` Prarit Bhargava
     [not found]     ` <alpine.DEB.2.02.1407291327450.13073-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-07-29 22:05       ` Prarit Bhargava
2014-07-29 22:29   ` Borislav Petkov
     [not found]     ` <20140729222932.GA17481-fF5Pk5pvG8Y@public.gmane.org>
2014-07-29 22:32       ` Prarit Bhargava
     [not found]         ` <53D82118.6090202-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-07-29 22:36           ` Borislav Petkov
     [not found]             ` <20140729223603.GC17241-fF5Pk5pvG8Y@public.gmane.org>
2014-07-29 22:42               ` David Rientjes
2014-07-29 23:01                 ` Borislav Petkov
     [not found]                   ` <20140729230102.GD17241-fF5Pk5pvG8Y@public.gmane.org>
2014-07-29 23:03                     ` Prarit Bhargava
     [not found]                 ` <alpine.DEB.2.02.1407291541480.20991-X6Q0R45D7oAcqpCFd4KODRPsWskHk0ljAL8bYrjMMd8@public.gmane.org>
2014-07-29 23:07                   ` Joe Perches
2014-07-29 23:44                     ` David Rientjes
2014-07-29 22:54               ` Prarit Bhargava
     [not found]                 ` <53D82623.4080903-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2014-07-30  3:25                   ` Steven Noonan
2014-07-30 14:48       ` Matt Fleming
     [not found]         ` <20140730144803.GB15082-HNK1S37rvNbeXh+fF434Mdi2O/JbrIOy@public.gmane.org>
2014-07-30 15:05           ` Colin Ian King
     [not found]             ` <53D909C3.9050205-Z7WLFzj8eWMS+FvcfC7Uqw@public.gmane.org>
2014-07-30 17:04               ` Prarit Bhargava
2014-07-30 17:10                 ` Randy Dunlap [this message]
     [not found]                   ` <53D92700.3040803-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2014-07-30 17:21                     ` H. Peter Anvin
     [not found]                       ` <53D92996.1050906-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2014-07-30 19:58                         ` Borislav Petkov
2014-07-30 20:43                           ` Randy Dunlap

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