This is the ending part of my XFree86.0.log after a crash:
(II) Loading extension NV-GLX
(II) [GLX]: Initializing GLX extension
(II) Open APM successful
(II) NVIDIA(0): Setting mode "1280x1024"
GetModeLine - scrn: 0 clock: 135000
GetModeLine - hdsp: 1280 hbeg: 1296 hend: 1440 httl: 1688
vdsp: 1024 vbeg: 1025 vend: 1028 vttl: 1066 flags: 5
Fatal server error:
Caught signal 11. Server aborting
Really useful... :-(
I found nothing of strange in the rest of file, only some warnings about unsopported modes (shouldn't care...).
In XFree86.9.log I found a "warning" output:
(WW) NVIDIA(0): Failed to verify AGP usage
but looking in /proc/driver/nvidia/agp/status, it seems agp is working.
AGP Rate: 4x
Fast Writes: Disabled
I attached the logs.