linux-kernel - Re: Peculiar out-of-sync boot log lines

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Message-ID: <474F1D24.4070009@rtr.ca>
Date:	Thu, 29 Nov 2007 15:12:20 -0500
From:	Mark Lord <lkml@....ca>
To:	Nick Warne <nick@...sn.org>
Cc:	linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
Subject: Re: Peculiar out-of-sync boot log lines

Nick Warne wrote:
> Hi all,
> 
> 2.6.23.9
> 
> I have noticed after applying Bart's patch to word93 blacklist my new
> DVD drive:
> 
> http://lkml.org/lkml/2007/10/23/475
> 
> I see now in logs (look at the hdd line:
> 
> [dmesg]
> hdc: 39876480 sectors (20416 MB) w/2048KiB Cache, CHS=39560/16/63,
> UDMA(66)
> hdc: cache flushes not supported
>  hdc: hdc1
> hdd: ATAPI 48X DVD-ROM DVD-R-RAM CD-R/RW drive, 2048kB Cache<7>hdd:
> skipping word 93 validity check
> , UDMA(66)
> Uniform CD-ROM driver Revision: 3.20
> 
> 
> <7> ??  And the ", UDMA(66)" gets new lined, so in syslog it appears all
> by itself:
...

That's a minor bug with the patch.

The code does this:

ide_dma_verbose::printk( ... "2048kB Cache");
eighty_ninty_three::printk(KERN_DEBUG "%s: skipping word 93 validity check\n");
ide_dma_verbose::printk(", UDMA(66)"

Something in there needs to insert a '\n' before the "skipping word" message.
Since it doesn't do that right now, the KERN_DEBUG string appears as "<7>"
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