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  1. $ gdb  -c CoreDump -symbols=/usr/lib/debug/usr/bin/Xorg  /usr/bin/Xorg
  2. GNU gdb (GDB) 7.5.91.20130417-cvs-ubuntu   
  3. Copyright (C) 2013 Free Software Foundation, Inc.
  4. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
  5. This is free software: you are free to change and redistribute it.
  6. There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
  7. and "show warranty" for details.
  8. This GDB was configured as "x86_64-linux-gnu".
  9. For bug reporting instructions, please see:
  10. <http://www.gnu.org/software/gdb/bugs/>...
  11. Reading symbols from /usr/bin/Xorg...Reading symbols from /usr/lib/debug/usr/bin/Xorg...done.
  12. done.
  13. [New LWP 1635]
  14. [New LWP 1729]
  15.  
  16. warning: Can't read pathname for load map: Input/output error.
  17. [Thread debugging using libthread_db enabled]
  18. Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
  19.  
  20. warning: no loadable sections found in added symbol-file system-supplied DSO at 0x7fffc79fe000
  21. Core was generated by `/usr/bin/X :0 vt8 -br -nolisten tcp -auth /var/run/xauth/A:0-lF9oac'.
  22. Program terminated with signal 6, Aborted.
  23. #0  0x00007fe18459d037 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  24. 56      ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
  25. (gdb) bt full
  26. #0  0x00007fe18459d037 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
  27.         resultvar = 0
  28.         pid = 1635
  29.         selftid = 1635
  30. #1  0x00007fe1845a0698 in __GI_abort () at abort.c:90
  31.         save_stage = 2
  32.         act = {__sigaction_handler = {sa_handler = 0x7fffc7902d82, sa_sigaction = 0x7fffc7902d82}, sa_mask = {__val = {140606566205732, 140606602996640,
  33.               1891, 4294967296, 140606564825233, 0, 0, 1, 4, 140736541495440, 0, 0, 0, 140606566205075, 140606599540736, 140606566221176}},
  34.           sa_flags = -2036339712, sa_restorer = 0x7fe1869fed10 <__PRETTY_FUNCTION__.23574>}
  35.         sigs = {__val = {32, 0 <repeats 15 times>}}
  36. #2  0x00007fe184595e03 in __assert_fail_base (fmt=0x7fe1846ec578 "%s%s%s:%u: %s%sAssertion `%s' failed.\n%n",
  37.     assertion=assertion@entry=0x7fe1869fec00 "pScreen->myNum < xf86NumScreens", file=file@entry=0x7fe1869feba0 "../../../../hw/xfree86/common/xf86Helper.c",
  38.     line=line@entry=1891, function=function@entry=0x7fe1869fed10 <__PRETTY_FUNCTION__.23574> "xf86ScreenToScrn") at assert.c:92
  39.         str = 0x7fe188d9c360 "\240\016ވ\341\177"
  40.         total = 4096
  41. #3  0x00007fe184595eb2 in __GI___assert_fail (assertion=assertion@entry=0x7fe1869fec00 "pScreen->myNum < xf86NumScreens",
  42.     file=file@entry=0x7fe1869feba0 "../../../../hw/xfree86/common/xf86Helper.c", line=line@entry=1891,
  43.     function=function@entry=0x7fe1869fed10 <__PRETTY_FUNCTION__.23574> "xf86ScreenToScrn") at assert.c:101
  44. No locals.
  45. #4  0x00007fe1868dc57d in xf86ScreenToScrn (pScreen=<optimized out>) at ../../../../hw/xfree86/common/xf86Helper.c:1891
  46. No locals.
  47. #5  0x00007fe182fe6145 in radeon_dri2_destroy_buffer2 (pScreen=<optimized out>, drawable=<optimized out>, buffers=<optimized out>)
  48.     at ../../src/radeon_dri2.c:356
  49.         scrn = <optimized out>
  50. #6  radeon_dri2_destroy_buffer2 (pScreen=<optimized out>, drawable=<optimized out>, buffers=0x7fe188d8c470) at ../../src/radeon_dri2.c:347
  51. No locals.
  52. #7  0x00007fe182fe6cb0 in radeon_dri2_client_state_changed (ClientStateCallback=<optimized out>, data=<optimized out>, calldata=<optimized out>)
  53.     at ../../src/radeon_dri2.c:599
  54.         pClientEventsPriv = 0x7fe188d7b0d0
  55.         ref = 0x7fe188d7ec90
  56.         clientinfo = <optimized out>
  57.         pClient = <optimized out>
  58. #8  0x00007fe1868955d4 in _CallCallbacks (pcbl=pcbl@entry=0x7fe186c733a0 <ClientStateCallback>, call_data=call_data@entry=0x7fffc7901240)
  59.     at ../../dix/dixutils.c:735
  60.         cbl = 0x7fe1888c3ea0
  61.         cbr = 0x7fe1888c30c0
  62.         pcbr = <optimized out>
  63. #9  0x00007fe18688ffb4 in CallCallbacks (call_data=0x7fffc7901240, pcbl=0x7fe186c733a0 <ClientStateCallback>) at ../../include/callback.h:83
  64. No locals.
  65. ---Type <return> to continue, or q <return> to quit---
  66. #10 CloseDownClient (client=client@entry=0x7fe188d7b010) at ../../dix/dispatch.c:3395
  67.         clientinfo = {client = 0x7fe188d7b010, prefix = 0x0, setup = 0x0}
  68.         really_close_down = <optimized out>
  69. #11 0x00007fe186890b35 in Dispatch () at ../../dix/dispatch.c:440
  70.         clientReady = 0x7fe188bff990
  71.         result = -1
  72.         client = 0x7fe188d7b010
  73.         nready = 0
  74.         icheck = 0x7fe186c733b0 <checkForInput>
  75.         start_tick = 100
  76. #12 0x00007fe18687f5aa in main (argc=8, argv=0x7fffc7901438, envp=<optimized out>) at ../../dix/main.c:298
  77.         i = <optimized out>
  78.         alwaysCheckForInput = {0, 1}
  79. (gdb)
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