System randomly Crashes when Graphics Acceleration is turned on

[lokesh kumar]

Hi,
    i am working on a x86 board.
    facing some trouble with my pvr driver,whenever i enable my hardware
acceleration my board hangs randomly and i have to reboot.

 #cat /etc/xorg.conf

   Section "Device"
    Identifier    "Video Device"
    Driver        "pvr"
    Option        "FlipChain"    "true"
    Option        "NoAccel"    "false"
    Option        "Plane"        "UPP_B"
    Option        "CursorPlane"    "IAP_B"
EndSection

Section "Monitor"
    Identifier    "Monitor"
EndSection

Section "Screen"
    Identifier    "Screen"
    Monitor        "Monitor"
    Device        "Video Device"
EndSection

Section "DRI"
    Mode 0666
EndSection

Section "ServerFlags"
    Option        "UseSIGIO"    "false"
EndSection


i am not able to debug it as i get no errors in serial console.
can anyone tell me where should i start debugging.
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