misc/125722: Error "BTX halted" at installation FreeBsd7 on notebook Acer Aspire 7520G

[Gregory]

>Number:         125722
>Category:       misc
>Synopsis:       Error "BTX halted" at installation FreeBsd7 on notebook Acer Aspire 7520G
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Jul 17 17:10:01 UTC 2008
>Closed-Date:
>Last-Modified:
>Originator:     Gregory
>Release:        
>Organization:
>Environment:
>Description:
At attempt to install FreeBsd6 - FreeBsd7 I receive a error " BTX halted " at a choice of any of modes of installation.
At install FreeBsd 8 I receive on the screen a matrix.
full error:
int=00000006 err=00000000 efl=00010006 eip=00458a34
eax=00458a30 ebx=00458a30 ecx=a0000075 edx=00048800
esi=0006632c edi=0005c05c ebx=00092c88 esp=0009cc44

es:eip= of c7 80 d4 00 00 00 00-00 00 00 b8 01 00 00 00
            5d c2 8d 76 00 8d bc 27-00 00 00 00 55 89 e5 5d

ss:esp=90 95 00 00 00 00 00 80-75 00 00 a0 00 00 00 00
           00 00 00 00 00 00 00 00-a0 88 04 00 00 00 14 01

BTX halted

Configuration notebook:

    Motherboard:
      CPU Type                                          Mobile DualCore AMD Turion 64 X2 TL-58, 1900 MHz (9.5 x 200)
      Motherboard Name                                  Acer Aspire 7520
      Motherboard Chipset                               nVIDIA nForce 7xxxM-6x0M, AMD Hammer
      System Memory                                     2048 MB  (DDR2 SDRAM)
      BIOS Type                                         Phoenix (07/04/07)

    Display:
      Video Adapter                                     NVIDIA GeForce 8400M G  (512 MB)
      Video Adapter                                     NVIDIA GeForce 8400M G  (512 MB)
      3D Accelerator                                    nVIDIA GeForce 8400M G
      Monitor                                           LG Philips LP171WP4-TLB1  [17.1" LCD]

    Multimedia:
      Audio Adapter                                     Realtek ALC268 @ nVIDIA MCP67/68 - High Definition Audio Controller

    Storage:
      IDE Controller                                    Ricoh Memory Stick Controller
      IDE Controller                                    Ricoh xD-Picture Card 
      Storage Controller                                SCSI/RAID Host Controller
      Disk Drive                                        WDC WD1600BEVS-22RST0  (149 GB, IDE)
      Disk Drive                                        WDC WD1600BEVS-22RST0  (149 GB, IDE)
      Disk Drive                                        WDC WD32      WD-WCASE023 USB Device  (298 GB, USB)
      Optical Drive                                     FI0734K ARF616N SCSI CdRom Device
      Optical Drive                                     Optiarc DVD RW AD-7560A
      SMART Hard Disks Status                           OK
      FireWire Controller                               Ricoh RL5C832 IEEE1394 Controller (PHY: Ricoh RL5C832)
      USB1 Controller                                   nVIDIA MCP67/68 - OHCI USB 1.1 Controller
      USB1 Controller                                   nVIDIA MCP67/68 - OHCI USB 1.1 Controller
      USB2 Controller                                   nVIDIA MCP67/68 - EHCI USB 2.0 Controller
      USB2 Controller                                   nVIDIA MCP67/68 - EHCI USB 2.0 Controller




>How-To-Repeat:

>Fix:


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