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Date: Fri, 12 Oct 2007 17:02:58 +0400
From: Sergey Matveychuk <sem@FreeBSD.org>
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To: Kostik Belousov <kostikbel@gmail.com>
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Cc: FreeBSD Current <freebsd-current@freebsd.org>, JoaoBR <joao@matik.com.br>
Subject: Re: what is this: SdMaP0?
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Kostik Belousov wrote:
> On Fri, Oct 12, 2007 at 05:20:49AM -0700, Jeremy Chadwick wrote:
>> On Fri, Oct 12, 2007 at 09:13:47AM -0300, JoaoBR wrote:
>>> somebody has a translation for this in my dmesg of amd64?
>>> SdMaP0::  AP1 6C0P.U0 0#0M1B /Lsa utnrcahnesdf!e
>> Here's the translation, and look closely:
>>
>> SMP: AP CPU #1 Launched!
>> da0: 160.000MB/s transfe
>>
>> And yes, I have seen this before on amd64.  My guess is that it's two
>> things in the kernel trying to output to the console buffer at the exact
>> same time, and there's no mutex lock being done.
> 
> I think that setting the option PRINTF_BUFR_SIZE 128 could help in this
> situation.

BTW, note my kern/116310. It fixes relate issue for log() function. But 
I did not touch kernel's printf(). Our logs have no junk now.

-- 
Dixi.
Sem.