amd64/96400: FreeBSD 6.0 Bootin Conflict between Broadcom on-broad NIC and Adaptec7902 storage chip

[York]

>Number:         96400
>Category:       amd64
>Synopsis:       FreeBSD 6.0 Bootin Conflict between Broadcom on-broad NIC and Adaptec7902 storage chip
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          maintainer-update
>Submitter-Id:   current-users
>Arrival-Date:   Thu Apr 27 08:00:35 GMT 2006
>Closed-Date:
>Last-Modified:
>Originator:     York
>Release:        FreeBSD 6.0 and 6.1
>Organization:
www.Inventecesc.com
>Environment:
System can boot from installation Boot CD.
>Description:
The related Hardware SPEC as below

System Chipset
	nVIDIA CK8-04 Pro
	AMD-8131 
Network Controllers
	2 x Broadcom 5721 Gigabit Ethernet controller
	TCP/IP off-loading, load-balancing, autofailover.
	Support 10BASE-T, 100BASE-TX and 1000BASE-T
Graphics
	ATI Rage XL PCI video controller
	8MB of video memory
Storage Chip
	SCSI Adaptec aic7902


Systen hang on Installation CD booting,
The Screen as below
	
--------------------------------------------------
(noperiph:ahd1:0:-1:-1): SCSI bus reset delivered. ) SCBs aborted.
md0: Preloaded image </boot/mfsroot> 4194304 bytes at 0xffffffff80970f68
ata0-slave: pio=PI04 wdma=WDMA2 udma=UDMA33 cab;e-40 write
ata0-master: pio=PIO4 wdma=WDMA2 udma=UDMA133 cable=80 write
ad0: setting PIO4 on nVidia nForce4 chip
ad0: setting UDMA133 on nVIDIA nForce4 chip
ad0: 117246MB <Maxtor 6Y120L0 YAR41BW0> at ata0-master UDMA133
CE0M: new disk ad0
ad0: nVidia check1 failed
ad0: Adaptec check1 failed
ad0: LSI (v3) check1 failed
ad0: LSI (v2) check1 failed
ad0: FreeBSD check1 failed
acd0: setting PIO4 on nVidia nForce4 chip
acd0: <MATSHITA CR-594/YSA2> CDROM drive at ata0 as slave
acd0: read 8258KB/s (8258KB/s), 128KB buffer, UDMA33
acd0: Reads: CDR. CDRW. CDDA strea,. packet
acd0: Writes:
acd0: Audio: play, 256 volume levels
acd0: MechanismL ejectsble tray, unlocked
acd0: Medium: CD-ROM 128mm data disk
ahd0: Selection Timeout on A:0, 0 SCBs aborted

------------------------------------------------------------------
Hang.............................Orz

>How-To-Repeat:
Happend on Installation,
Verify.
If disable Both on-broad NICs, installation will be OK
>Fix:

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