sudo gdb /usr/bin/Xorg



\

Program received signal SIGINT, Interrupt.
[Switching to Thread 0xb7cb9a30 (LWP 1630)]
0xb7fe1410 in __kernel_vsyscall ()
(gdb) backtrace full
#0  0xb7fe1410 in __kernel_vsyscall ()
No symbol table info available.
#1  0xb7dedd89 in fork () from /lib/tls/i686/cmov/libc.so.6
No symbol table info available.
#2  0x081b8d22 in Popen (
    command=0xa21f9a0 "\"/usr/bin/xkbcomp\" -w 1 \"-R/usr/share/X11/xkb\" -xkm \"-\" -em1 \"The XKEYBOARD keymap compiler (xkbcomp) reports:\" -emp \"> \" -eml \"Errors from xkbcomp are not fatal to the X server\" \"/var/lib/xkb/server-"..., type=0x81ce0ed "w") at ../../os/utils.c:1728
        iop = <value optimized out>
        pdes = {59, 62}
        pid = <value optimized out>
#3  0x081ade91 in XkbDDXLoadKeymapByNames (keybd=0x8260a68, names=0xbffbf7c8,
    want=127, need=63, finfoRtrn=0xbffbf7e0, nameRtrn=0xbffbf7f8 "",
    nameRtrnLen=4096) at ../../xkb/ddxLoad.c:355
        xkb = (XkbDescPtr) 0x863dab8
        file = <value optimized out>
        fileName = "\0374lL\000\000\033�\t\000\000�9:;-);r\017\000\001 �\f\000\000�A@B$9Co\000\a\036W\207\000\000\000�0\030\005�@Ip\000+@l\017\000\001\035�\v\000\000�:85$9Ag\000\a!]\207\000\000\000�1\033\006�?N\214\0005K\224\006\000\fL�\001\000\000�83%I;I}\000=L\200\000=J\203\000;F\200\0008Dy\000\003\030[�\000\000\000�0\037\r\222@J\203\000?K\211\000>J\207\000=I\204\000AK\204\000>I\200\000=G~\000=G|\000;F~\000;D~\000;F\200\000=I\204\000>I\204\000>I\203\000=J~\000&D{\033"...
---Type <return> to continue, or q <return> to quit---
        missing = <value optimized out>
#4  0x08184741 in ProcXkbGetKbdByName (client=0xa221940)
    at ../../xkb/xkb.c:5198
        dev = (DeviceIntPtr) 0x8260a68
        tmpd = <value optimized out>
        finfo = {type = 0, defined = 0, xkb = 0x0}
        rep = {type = 1 '\001', deviceID = 0 '\0', sequenceNumber = 10176,
  length = 0, minKeyCode = 8 '\b', maxKeyCode = 255 '�', loaded = 0 '\0',
  newKeyboard = 0 '\0', found = 26190, reported = 255, pad1 = 9726290,
  pad2 = 10317914, pad3 = 4286078797, pad4 = 4285947211}
        mrep = {type = 83 'S', deviceID = 105 'i', sequenceNumber = 136,
  length = 8940116, pad1 = 27220, minKeyCode = 137 '\211',
  maxKeyCode = 0 '\0', present = 27220, firstType = 136 '\210',
  nTypes = 0 '\0', totalTypes = 84 'T', firstKeySym = 104 'h',
  totalSyms = 135, nKeySyms = 84 'T', firstKeyAct = 104 'h', totalActs = 135,
  nKeyActs = 84 'T', firstKeyBehavior = 105 'i', nKeyBehaviors = 135 '\207',
  totalKeyBehaviors = 0 '\0', firstKeyExplicit = 85 'U',
  nKeyExplicit = 106 'j', totalKeyExplicit = 136 '\210',
  firstModMapKey = 0 '\0', nModMapKeys = 80 'P', totalModMapKeys = 100 'd',
  firstVModMapKey = 130 '\202', nVModMapKeys = 0 '\0',
  totalVModMapKeys = 79 'O', pad2 = 100 'd', virtualMods = 130}
        crep = {type = 87 'W', deviceID = 112 'p', sequenceNumber = 145,
  length = 9465686, groups = 81 'Q', pad1 = 107 'k', firstSI = 142,
---Type <return> to continue, or q <return> to quit---
  nSI = 27216, nTotalSI = 141, pad2 = 9399378, pad3 = 9530964, pad4 = 9333841,
  pad5 = 9070669}
        irep = {type = 82 'R', deviceID = 104 'h', sequenceNumber = 134,
  length = 8808273, which = 8676943, realIndicators = 8676686,
  nIndicators = 80 'P', pad1 = 102 'f', pad2 = 133, pad3 = 8808529,
  pad4 = 8808271, pad5 = 9137236}
        nrep = {type = 79 'O', deviceID = 101 'e', sequenceNumber = 131,
  length = 8545358, which = 8545357, minKeyCode = 77 'M',
  maxKeyCode = 100 'd', nTypes = 130 '\202', groupNames = 0 '\0',
  virtualMods = 26192, firstKey = 132 '\204', nKeys = 0 '\0',
  indicators = 8742737, nRadioGroups = 80 'P', nKeyAliases = 102 'f',
  nKTLevels = 133, pad3 = 8808273}
        grep = {type = 78 'N', deviceID = 99 'c', sequenceNumber = 129,
  length = 8413773, name = 8413773, found = 77 'M', pad = 98 'b',
  widthMM = 128, heightMM = 25424, nProperties = 129, nColors = 25680,
  nShapes = 130, nSections = 25680, nDoodads = 130, nKeyAliases = 25936,
  baseColorNdx = 131 '\203', labelColorNdx = 0 '\0'}
        names = {keymap = 0x0, keycodes = 0x0, types = 0x9e2a130 "%",
  compat = 0x9dd4d50 "%", symbols = 0xa231aa8 "%", geometry = 0xa113bf8 "%"}
        xkb = (XkbDescPtr) 0x863dab8
        str = <value optimized out>
        mapFile = '\0' <repeats 4095 times>
        fwant = 127
---Type <return> to continue, or q <return> to quit---
        fneed = 63
        status = 0
        geom_changed = 0
        sli = <value optimized out>
#5  0x0818c9ba in ProcXkbDispatch (client=0x0) at ../../xkb/xkb.c:6178
No locals.
#6  0x081506ee in XaceCatchExtProc (client=0xa221940) at ../../Xext/xace.c:299
        major = 149
        ext = <value optimized out>
#7  0x0808d8df in Dispatch () at ../../dix/dispatch.c:502
        result = <value optimized out>
        client = (ClientPtr) 0xa221940
        nready = 0
        start_tick = 13440
#8  0x0807471b in main (argc=8, argv=0xbffc0d94, envp=Cannot access memory at address 0x8
) at ../../dix/main.c:452
        i = 1
        error = 136163204
        xauthfile = <value optimized out>
        alwaysCheckForInput = {0, 1}
(gdb)