kern/37826: Kernel sees only one SATA channel (out of four) on Abit AN52 motherboard (nvidia nf520__single chip)

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>Number:         37826
>Category:       kern
>Synopsis:       Kernel sees only one SATA channel (out of four) on Abit AN52 
>motherboard (nvidia nf520__single chip)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jan 21 03:10:00 +0000 2008
>Originator:     Art Lemasters
>Release:        4.0 stable but also tried to boot a current kernel.
>Organization:
>Environment:
NetBSD 4.99.49 (MORDECHAI) #0: Thu Jan 10 21:27:07 MST 2008
        elijah@noah:/usr/obj/sys/arch/i386/compile/MORDECHAI

(That's with a 4.0 userland...also tried a 4.0 stable kernel with same results 
on the SATA problem)

>Description:
NetBSD only sees one SATA channel out of four. The BIOS sees the two hard 
drives plugged into two of the four hardware interfaces.

Further information that might be helpful:

  FreeBSD (7.0--live CD) sees both drives (the two drives plugged into two of 
the four SATA interfaces on the motherboard).

  NetBSD dmesg
  http://mail-index.netbsd.org/current-users/2008/01/11/0010.html

  FreeBSD dmesg
  http://mail-index.netbsd.org/current-users/2008/01/12/0018.html

  
>How-To-Repeat:
Try to boot NetBSD with SATA drive(s) plugged into any of the last three 
interfaces on an Abit AN52 motherboard with nvidia nf520 single chip. NetBSD 
can only see a drive on the first interface.


>Fix:
See the message posted by Jonathan Kollasch for a possible solution.

http://mail-index.netbsd.org/current-users/2008/01/12/0020.html