Re: MegaRAID on AMD64 under 2.6.1

From: Christoph Hellwig
Date: Thu Jan 08 2004 - 07:13:58 EST


On Wed, Jan 07, 2004 at 05:01:28PM -0500, Chris Meadors wrote:
> I seem to recall some discussion reguarding the MegaRAID driver use on
> AMD64 machines with large amounts of RAM. My machine only has 2 GB of
> RAM, and the driver was working fine under 2.6.0 (note I use Andi
> Kleen's x86_64 patch kit, on an otherwise stock kernel). But with the
> release of 2.6.1-rc1 the driver does not load. I have module support
> disabled and all needed drivers built into the kernel. All my file
> systems (including root) are on logical drives provided by the RAID
> controller. So the kernel panics when attempting to mount the root
> filesystem, if the driver doesn't load.
>
> Looking through the 2.6.1-rc2 patch, it seems that the megaraid.[ch]
> files got some large amount of re-ordering. So I can't easily spot what
> change might have effected the driver.
>
> Here is the lspci output for my specific card:

Can you put a printk into megaraid_probe_one() whether that one actually
gets called?

Also lspci -n output would be very nice to have.

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