[Xcb] Re: Problem with XCBImagePut

[Orhun Birsoy]

I think I have BIG-REQUESTS extension, please see the my findings below. 
As you suggested I am losing my connection to X somehow. Is there a way 
I can further debug this?

Since I am lost at this, I will suggest random thoughts maybe one of 
them will ring a bell,
. My X server has some setting that XCB does not like.
. My Fedora Core 5 has some setting that XCB does not like.
. My compiler (gcc (GCC) 4.1.1 20060525 (Red Hat 4.1.1-1)) does 
something that XCB does not like.
. XCB does not like my video card (GeForce 6800, nvidia drivers loaded)
. I am compiling my application wrong.
. I somehow managed to compile XCB wrong.
. I have to enable some stuff (ie BIG-REQUESTS), either in some 
configuration file, and/or during compilation of XCB, and/or during 
compilation of my program.

I guess I have to wait Vincent to get back to me.

I am also studying SHM, if that solves my problem I'll let you know.

Here is my findings :

XCBGetMaximumRequestLength returns 4194303. Strangely enough this number 
is very close to my image size that causes problems but according to the 
documentation this should be a number representing 16777212 bytes (which 
is also confirmed by xdpyinfo, see below).

xdpyinfo returns this information :

name of display:    :0.0
version number:    11.0
vendor string:    The X.Org Foundation
vendor release number:    70000000
X.Org version: 7.0.0
maximum request size:  16777212 bytes
motion buffer size:  256
bitmap unit, bit order, padding:    32, LSBFirst, 32
image byte order:    LSBFirst
number of supported pixmap formats:    7
supported pixmap formats:
     depth 1, bits_per_pixel 1, scanline_pad 32
     depth 4, bits_per_pixel 8, scanline_pad 32
     depth 8, bits_per_pixel 8, scanline_pad 32
     depth 15, bits_per_pixel 16, scanline_pad 32
     depth 16, bits_per_pixel 16, scanline_pad 32
     depth 24, bits_per_pixel 32, scanline_pad 32
     depth 32, bits_per_pixel 32, scanline_pad 32
keycode range:    minimum 8, maximum 255
focus:  window 0x340001e, revert to Parent
number of extensions:    31
     BIG-REQUESTS
     DAMAGE
     DOUBLE-BUFFER
     DPMS
     Extended-Visual-Information
     GLX
     LBX
     MIT-SCREEN-SAVER
     MIT-SHM
     MIT-SUNDRY-NONSTANDARD
     NV-CONTROL
     NV-GLX
     RECORD
     RENDER
     SECURITY
     SHAPE
     SYNC
     TOG-CUP
     X-Resource
     XC-APPGROUP
     XC-MISC
     XFIXES
     XFree86-Bigfont
     XFree86-DGA
     XFree86-Misc
     XFree86-VidModeExtension
     XInputExtension
     XKEYBOARD
     XTEST
     XVideo
     XVideo-MotionCompensation

My Xorg.0.log also contains this line
(II) Loading extension BIG-REQUESTS