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Date: Fri, 27 Jul 2007 19:49:50 -0600
From: Robert Hancock <hancockr@shaw.ca>
Subject: Re: Problems with reading DVD using 2.6.21.5
In-reply-to: <fa.wwGTjo0zKd+GP1ok2NxTU1KXblw@ifi.uio.no>
To: Manuel Reimer <Manuel.Spam@nurfuerspam.de>
Cc: linux-kernel@vger.kernel.org
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Manuel Reimer wrote:
> Hello,
> 
> today I've tried to install Slackware 12.0
> 
> As the installer just "skipped" some install steps, I tried to find the 
> error.
> 
> The problem seems to be unreadable parts on the DVD:
> 
> http://pastebin.com/f381e8a88
> 
> But the DVD is OK. I've checked the MD5sum directly from disc on the 
> same system using the same DVD drive.
> 
> dmesg says:
> 
> http://pastebin.com/f63c5c389
> 
> The kernel, used on the Slackware setup disk, uses SMP, but my hardware 
> doesn't support this (get error on dmesg). May this (SMP kernel on 
> non-SMP system) cause such bugs?
> 
> Is this a known bug? How could code, which breaks DVD access, get into 
> stable 2.6.21.5?

I don't think this is a bug, the drive was told to read a sector and 
returned error SK=03, ASC=02, ASCQ=00 which is "NO SEEK COMPLETE", in 
other words it couldn't find that sector. Could be that the disc is 
marginally readable and only sometimes causes read errors.

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@nospamshaw.ca
Home Page: http://www.roberthancock.com/