Re: Problems with nVidia nForce 520 Chipset

[Tejun Heo <htejun@gmail.com>]

Craig Block wrote:
> Hello,
> 
> I'm having a problem getting Linux to handle the SATA drives and controllers on
> a new computer with an ASUS M2N-X motherboard.  This is a socket AM2 board and
> has an nVidia nForce 520 chipset.  It has three controller mode settings in the
> BIOS, SATA, AHCI, and RAID.
> 
> I built and tried a couple kernels, one with SATA_NV plus BLK_DEV_IDECD and the
> other with SATA_AHCI plus PATA_AMD.
> 
> With the controllers in SATA mode, the kernel built with SATA_NV doesn't see
> the SATA controllers at all.  The PATA CD drive links to hda and works
> properly.  I tried the same kernel on an nForce 4 system and everything works
> right.
>  
> With the controllers in AHCI mode, the kernel built with SATA_AHCI, hangs when
> probing the SATA controllers.  It literally takes about a minute to get through
> each one.  It never does link any drives to them.  The PATA CD drive links to
> sr0 and seems to work okay.
> 
> I've had MS Windows working without issue in either mode, using the canned IDE
> driver in SATA mode and the nVidia AHCI driver in AHCI mode.
> 
> Output from "dmesg" and "lspci -n -vvv" commands is attached.

Does 'noapic' kernel parameter help?

-- 
tejun