GNU gdb (GDB) 7.2
Copyright (C) 2010 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-unknown-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/bin/Xorg...done.
Attaching to program: /usr/bin/Xorg, process 3692
Reading symbols from /lib/libudev.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libudev.so.0
Reading symbols from /lib/libgcrypt.so.11...(no debugging symbols found)...done.
Loaded symbols for /lib/libgcrypt.so.11
Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.2
Reading symbols from /usr/lib/libpciaccess.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpciaccess.so.0
Reading symbols from /lib/libpthread.so.0...(no debugging symbols found)...done.
[Thread debugging using libthread_db enabled]
Loaded symbols for /lib/libpthread.so.0
Reading symbols from /usr/lib/libpixman-1.so.0...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libpixman-1.so.0
Reading symbols from /usr/lib/libXfont.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXfont.so.1
Reading symbols from /usr/lib/libXau.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXau.so.6
Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libXdmcp.so.6
Reading symbols from /lib/libm.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libm.so.6
Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/libgpg-error.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libgpg-error.so.0
Reading symbols from /lib/ld-linux-x86-64.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/ld-linux-x86-64.so.2
Reading symbols from /usr/lib/libfreetype.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfreetype.so.6
Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /usr/lib/libfontenc.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libfontenc.so.1
Reading symbols from /usr/lib/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libgcc_s.so.1
Reading symbols from /usr/lib/xorg/modules/extensions/libextmod.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libextmod.so
Reading symbols from /usr/lib/xorg/modules/extensions/libdbe.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libdbe.so
Reading symbols from /usr/lib/xorg/modules/extensions/libglx.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libglx.so
Reading symbols from /usr/lib/xorg/modules/extensions/librecord.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/librecord.so
Reading symbols from /usr/lib/xorg/modules/extensions/libdri.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libdri.so
Reading symbols from /usr/lib/libdrm.so.2...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libdrm.so.2
Reading symbols from /usr/lib/xorg/modules/extensions/libdri2.so...done.
Loaded symbols for /usr/lib/xorg/modules/extensions/libdri2.so
Reading symbols from /usr/lib/xorg/modules/drivers/radeon_drv.so...done.
Loaded symbols for /usr/lib/xorg/modules/drivers/radeon_drv.so
Reading symbols from /usr/lib/libdrm_radeon.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libdrm_radeon.so.1
Reading symbols from /usr/lib/xorg/modules/libexa.so...done.
Loaded symbols for /usr/lib/xorg/modules/libexa.so
Reading symbols from /usr/lib/xorg/modules/libfb.so...done.
Loaded symbols for /usr/lib/xorg/modules/libfb.so
Reading symbols from /usr/lib/xorg/modules/dri/r600_dri.so...done.
Loaded symbols for /usr/lib/xorg/modules/dri/r600_dri.so
Reading symbols from /usr/lib/libexpat.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libexpat.so.1
Reading symbols from /usr/lib/libstdc++.so.6...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libstdc++.so.6
Reading symbols from /usr/lib/xorg/modules/input/evdev_drv.so...done.
Loaded symbols for /usr/lib/xorg/modules/input/evdev_drv.so
Reading symbols from /usr/lib/xorg/modules/input/synaptics_drv.so...done.
Loaded symbols for /usr/lib/xorg/modules/input/synaptics_drv.so
Reading symbols from /lib/libnss_files.so.2...(no debugging symbols found)...done.
Loaded symbols for /lib/libnss_files.so.2
0x00007f010631d903 in select () from /lib/libc.so.6
(gdb) c
Continuing.

Program received signal SIGSEGV, Segmentation fault.
0x00007f01062c6c94 in ?? () from /lib/libc.so.6
(gdb) bt full
#0  0x00007f01062c6c94 in ?? () from /lib/libc.so.6
No symbol table info available.
#1  0x00007f01062c8dfd in malloc () from /lib/libc.so.6
No symbol table info available.
#2  0x0000000000445412 in AllocatePixmap (pScreen=<value optimized out>, pixDataSize=<value optimized out>) at pixmap.c:123
        pPixmap = <value optimized out>
        __PRETTY_FUNCTION__ = "AllocatePixmap"
#3  0x00007f0103fa3f12 in fbCreatePixmapBpp (pScreen=0x1ccf250, width=0, height=0, depth=24, bpp=32, usage_hint=<value optimized out>) at fbpixmap.c:53
        pPixmap = <value optimized out>
        datasize = <value optimized out>
        paddedWidth = 0
        adjust = <value optimized out>
        base = <value optimized out>
#4  0x00007f01041b5d54 in exaCreatePixmap_mixed (pScreen=0x1ccf250, w=440, h=143, depth=<value optimized out>, usage_hint=<value optimized out>) at exa_mixed.c:62
        pPixmap = <value optimized out>
        pExaPixmap = 0x230f030
        bpp = <value optimized out>
        paddedWidth = <value optimized out>
        pExaScr = 0x1ce2900
#5  0x000000000042a1ee in ProcCreatePixmap (client=0x20ca7d0) at dispatch.c:1405
        pMap = <value optimized out>
        pDraw = 0x23e45e0
        stuff = 0x230f030
        pDepth = <value optimized out>
        i = <value optimized out>
        rc = <value optimized out>
#6  0x000000000042e7f9 in Dispatch () at dispatch.c:431
        clientReady = 0x20da590
        result = <value optimized out>
        client = 0x20ca7d0
        nready = 0
        icheck = 0x7e2ed0
        start_tick = 1140
#7  0x0000000000422afe in main (argc=9, argv=<value optimized out>, envp=<value optimized out>) at main.c:287
        i = <value optimized out>
        alwaysCheckForInput = {0, 1}
(gdb)