linux-kernel - Re: x86_64 SATA DVD drive + libata trouble

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Message-ID: <20071109190413.0efe9318@the-village.bc.nu>
Date:	Fri, 9 Nov 2007 19:04:13 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Bernd Strieder <strieder@...ormatik.uni-kl.de>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: x86_64 SATA DVD drive + libata trouble

> I have a Tyan mainboard with NVIDIA chipset CK804. The only 
> SATA/IDE device is a SATA DVD combo, the harddisks are on a RAID 
> controller from 3ware. The harddisks are fine.

Interesting. I have only one other report of this problem that resembles
yours. They also have a 3ware raid controller. 

> installation kernel cannot use the DVD drive. That kernel uses 
> libata and sata_nv pata_amd as drivers. The drive is recognized 

These are the correct drivers.

> A vanilla 2.6.23.1 kernel behaves even less friendly, the dd 
> on /dev/sr0 causes a hard reset.

A dmesg and further info would be useful here. Also knowing how much
memory your system has and whether it passes memtest86.

> So there are clearly some problems with libata in this system.

CK804 is known to work reliably. That means we are looking for something
thats "different" about your system - perhaps the devices, the amount of
memory etc. 

Alan
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