amd64/148489: Generic driver is used for Nvidia SATA (nforce? MCP78?)

[Stéphane Thibaud]

>Number:         148489
>Category:       amd64
>Synopsis:       Generic driver is used for Nvidia SATA (nforce? MCP78?)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul 11 00:50:07 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Stéphane Thibaud
>Release:        FreeBSD 8.0-RELEASE-p2 (PCBSD really)
>Organization:
>Environment:
FreeBSD pcbsd-5973 8.0-RELEASE-p2 FreeBSD 8.0-RELEASE-p2 #10: Thu Jan  7 14:50:53 EST 2010     root at build8x64.pcbsd.org:/usr/obj/usr/pcbsd-build80/fbsd-source/8.0-src/sys/PCBSD  amd64
>Description:
I think the following extract from pciconf -lv represents the chipset of my SATA controller:

atapci1 at pci0:0:9:0:     class=0x010185 card=0x360a103c chip=0x0ad010de rev=0xa2 hdr=0x00                                                                        
    vendor     = 'Nvidia Corp'                                                  
    device     = 'SATA Controller IDE mode (MCP78)'                             
    class      = mass storage                                                   
    subclass   = ATA             

And this appears in dmesg:
ad6: 238475MB <Seagate ST9250320AS HP07> at ata3-master UDMA33        

I noticed that my laptop becomes really slow when copying files or using the hard-drive a lot.

Laptop is a Compaq Presario cq60-213ef
>How-To-Repeat:
Copy files and try to do something else (like browsing with firefox).
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: