[Bug 14994] Random Panic/Freeze due to BUG: unable to handle kernel NULL pointer dereference at 00000024(?)

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https://bugzilla.kernel.org/show_bug.cgi?id=14994





--- Comment #22 from Anonymous Emailer <anonymous@kernel-bugs.osdl.org>  2010-04-14 20:48:26 ---
Reply-To: bp@alien8.de

From: Borislav Petkov <bp@alien8.de>
Date: Wed, Apr 14, 2010 at 10:07:37AM +0200

Hi,

 [ Mark, please try replying with a simple mail instead over bugzilla
 since it is much easier to work that way, thanks ]

> --- Comment #21 from Marc H. Thoben <kernelbug@develz.org>  2010-04-14 18:42:53 ---
> Created an attachment (id=26001)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=26001)
>  --> (https://bugzilla.kernel.org/attachment.cgi?id=26001)
> dmesg, normal ide-cd_mod, tainted kernel 2.6.34-rc4
> 
> Pity I couldn't get Nouveau working with 2.6.34-rc4 without recompiling X/Mesa
> - which I am not able to.
> 
> So I ran Nvidia again - but it's the same kernel panic, I believe.

No, tainted kernel doesn't help. The only info I get from this is that
it might be that the proprietary crap interferes with the cdrom. How do
I know it doesn't?

Well, I don't because I can't look at the source code. So the reason
I'm asking you to retry without the nvidia driver is so that we can be
really sure whether there's a bug.

Alternatively, if feel like you must use the nvidia driver, you can
always try libata and use the scsi sr_mod driver for your cdrom. Simply
enable CONFIG_BLK_DEV_SR or since you're using distro kernel, simply
blacklist ide-cd_mod and load sr_mod (or something to that extent -
there should be some description how to do this the debian way so use
your favourite search engine).

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