amd64/142270: System trap on Xorg shutdown when using nvidia driver on FreeBSD 8.0

[Sergey Maltsev]

>Number:         142270
>Category:       amd64
>Synopsis:       System trap on Xorg shutdown when using nvidia driver on FreeBSD 8.0
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    freebsd-amd64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jan 03 17:20:01 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Sergey Maltsev
>Release:        FreeBSD 8.0-RELEASE-p1 amd64
>Organization:
>Environment:
FreeBSD book.planet-a.ru 8.0-RELEASE-p1 FreeBSD 8.0-RELEASE-p1 #0: Sun Jan  3 21:02:05 YEKT 2010     root at book.planet-a.ru:/usr/obj/usr/src/sys/BOOK  amd64
>Description:
I am using a notebook Asus N61Vn with video card Nvidia GEFORCE GT240M. nvidia-driver-195.22 installed from ports. System traps always when Xorg exiting. The notebook can be switched off only by long pressing of the power button. 
>How-To-Repeat:
1. Install port x11/nvidia-driver: nvidia-driver-195.22 NVidia graphics card binary drivers.
2. Load kernel module: `kldload nvidia`
3. Configure xorg.conf with nvidia driver support:
Section "Device"
        Identifier  "nvidia"
        VendorName  "nVidia Corporation"
        BoardName   "GeForce GT 240M"   
        BusID       "PCI:1:0:0"         
EndSection                              
4. Start Xorg for example by `startx` utility.
5. Exit Xorg.
>Fix:


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