Bug#699472: xserver-xorg-core: Caught signal 11 (Segmentation fault). Server aborting

["Nelson A. de Oliveira" <naoliv@debian.org>]

I don't know if it's related, but got another reproducible
segmentation fault while trying another game (FTL).

In Xorg.0.log:

[1305277.651] Backtrace:
[1305277.660] 0: /usr/bin/Xorg (xorg_backtrace+0x36) [0x7fbe5f917cd6]
[1305277.660] 1: /usr/bin/Xorg (0x7fbe5f799000+0x182829) [0x7fbe5f91b829]
[1305277.660] 2: /lib/x86_64-linux-gnu/libpthread.so.0
(0x7fbe5eac1000+0xf030) [0x7fbe5ead0030]
[1305277.661] 3: /usr/lib/x86_64-linux-gnu/dri/r600_dri.so
(0x7fbe59d4a000+0x285ae3) [0x7fbe59fcfae3]
[1305277.661] 4: /usr/lib/xorg/modules/extensions/libglx.so
(0x7fbe5c230000+0xddb1) [0x7fbe5c23ddb1]
[1305277.661] 5: /usr/lib/xorg/modules/extensions/libglx.so
(0x7fbe5c230000+0x3c223) [0x7fbe5c26c223]
[1305277.661] 6: /usr/bin/Xorg (0x7fbe5f799000+0x52e61) [0x7fbe5f7ebe61]
[1305277.661] 7: /usr/bin/Xorg (0x7fbe5f799000+0x41ec5) [0x7fbe5f7daec5]
[1305277.661] 8: /lib/x86_64-linux-gnu/libc.so.6
(__libc_start_main+0xfd) [0x7fbe5d7e8ead]
[1305277.661] 9: /usr/bin/Xorg (0x7fbe5f799000+0x4219d) [0x7fbe5f7db19d]
[1305277.661]
[1305277.661] Segmentation fault at address 0x637f4870
[1305277.661]
Fatal server error:
[1305277.661] Caught signal 11 (Segmentation fault). Server aborting

A backtrace is also attached.

Thank you!

Best regards,
Nelson

Continuing.
[New Thread 0x7fbe586c8700 (LWP 26833)]

Program received signal SIGSEGV, Segmentation fault.
_mesa_GenTextures (n=256, textures=<optimized out>) at main/texobj.c:876
876	main/texobj.c: Arquivo ou diretório não encontrado.
#0  _mesa_GenTextures (n=256, textures=<optimized out>) at main/texobj.c:876
        texObj = <optimized out>
        name = 1871
        target = 0
        ctx = 0x7fbe6261f030
        first = <optimized out>
        i = <optimized out>
#1  0x00007fbe5c23ddb1 in __glXDisp_GenTextures (cl=0x7fbe62b4b058, 
    pc=<optimized out>) at ../../glx/indirect_dispatch.c:2851
        n = 256
        answerBuffer = {2201748512, 32767, 1602384045, 32702, 2201748528, 
          32767, 2202004137, 32767, 0 <repeats 20 times>, 2201748624, 32767, 
          2202004137, 32767, 2201748688, 32767, 0, 0, 0, 1, 1, 0, 1606004352, 
          32702, 1605976304, 32702, 2201748688, 32767, 1572175494, 32702, 
          2201748688, 32767, 1, 0, 1606004352, 32702, 1603393436, 32702, 0, 0, 
          20000, 0, 0, 0, 20000, 0, 1606004224, 32702, 1603360858, 32702, 32, 
          0, 1637120688, 32702, 1650585648, 32702, 2201748752, 32767, 112, 0, 
          891963, 0 <repeats 33 times>, 58, 0, 1602787880, 32702, 1635264896, 
          32702, 48, 32702, 2201749064, 32767, 2201748992, 32767, 32, 0, 
          25165825, 58, 1572142792, 32702, 0, 32702, 24, 0, 16, 48, 
          2201749216, 32767, 2201749008, 32767, 1572142792, 32702, 1, 0, 27, 
          0, 1669243184, 32702, 4112, 0, 1, 0 <repeats 25 times>, 2201749216, 
          32767, 2202004137, 32767, 2201749280, 32767, 0, 0, 1635451600, 
          32702, 1635454272, 32702, 1605960840, 32702, 1602160052, 32702, 
          1661456160, 32702, 1605960832, 32702, 1548310592, 32702, 0, 0}
        textures = 0x637f4870
        req = <optimized out>
        error = 32702
        cx = <optimized out>
#2  0x00007fbe5c26c223 in __glXDispatch (client=<optimized out>)
    at ../../glx/glxext.c:568
        rendering = 0 '\000'
        stuff = 0x7fbe637ea130
        opcode = 145 '\221'
        proc = <optimized out>
        cl = 0x7fbe62b4b058
        retval = <optimized out>
#3  0x00007fbe5f7ebe61 in Dispatch () at ../../dix/dispatch.c:428
        clientReady = 0x7fbe61947ab0
        result = <optimized out>
        client = 0x7fbe62b4af10
        nready = 0
        icheck = 0x7fbe5fb940f0
        start_tick = 14020
#4  0x00007fbe5f7daec5 in main (argc=10, argv=0x7fff833c0918, 
    envp=<optimized out>) at ../../dix/main.c:288
        i = <optimized out>
        alwaysCheckForInput = {0, 1}