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Message-id: <47388F6F.9010603@shaw.ca>
Date: Mon, 12 Nov 2007 11:37:51 -0600
From: Robert Hancock <hancockr@...w.ca>
To: Bernd Strieder <strieder@...ormatik.uni-kl.de>
Cc: Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org
Subject: Re: x86_64 SATA DVD drive + libata trouble
Bernd Strieder wrote:
> I managed to get it running with the SuSE kernel when passing
> adma=0 to sata_nv module, and I managed to get it running when
> passing mem=2000M to the SuSE kernel. Thanks to Robert for those
> hints.
>
> The vanilla kernels I tried 2.6.23.1 and 2.6.24-rc1-git10 (with
> patch to sata_nv.c from Robert Hancock see
> https://bugzilla.redhat.com/show_bug.cgi?id=351451) seem to be
> very sensitive in this area. Whenever I got them to oops, I did
> not have much time to get anything read on the screen.
>
> I managed under the patched 2.6.24-rc1-git10 to manually load
> sata_nv and sr_mod, and then I got an OOps like
>
> Unable to handle ... NULL pointer dref at 0000000000000000 RIP
> ffffff880edf6a
> .....
> libata:ata_qc_prep + 0xe2/0x15b
> .....
> srmod:sr_probe
Which patch is this using, the original one from Nov. 2 or the updated
one from Nov. 10? The original one has a bug.
> I have attached 3 dmesg outputs with the openSuSE 10.3 kernel and
> extracts of /var/log/messages, especially some Oopses. The oopses
> from the vanilla kernels seem to be so bad that they do never end
> up in a file.
>
> I will do some more tests as soon as possible. I have attached the
> files as I created them, you will have to diff the single files,
> anyway, to get the important information out, I cannot select for
> you.
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