GNU gdb (GDB) 7.1-ubuntu Copyright (C) 2010 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later 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 "i486-linux-gnu". For bug reporting instructions, please see: ... Reading symbols from /usr/bin/Xorg... warning: the debug information found in "/usr/lib/debug//usr/bin/Xorg" does not match "/usr/bin/Xorg" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/bin/Xorg" does not match "/usr/bin/Xorg" (CRC mismatch). (no debugging symbols found)...done. (gdb) attach 2562 Attaching to program: /usr/bin/Xorg, process 2562 Reading symbols from /lib/libudev.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/libudev.so.0 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/tls/i686/cmov/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libdl.so.2 Reading symbols from /lib/tls/i686/cmov/libpthread.so.0...(no debugging symbols found)...done. [Thread debugging using libthread_db enabled] Loaded symbols for /lib/tls/i686/cmov/libpthread.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/libpixman-1.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libpixman-1.so.0 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/libgcrypt.so.11...(no debugging symbols found)...done. Loaded symbols for /lib/libgcrypt.so.11 Reading symbols from /lib/tls/i686/cmov/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libm.so.6 Reading symbols from /lib/tls/i686/cmov/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/librt.so.1 Reading symbols from /lib/tls/i686/cmov/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libc.so.6 Reading symbols from /lib/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libz.so.1 Reading symbols from /lib/ld-linux.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.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 /lib/libbz2.so.1.0...(no debugging symbols found)...done. Loaded symbols for /lib/libbz2.so.1.0 Reading symbols from /usr/lib/libfontenc.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libfontenc.so.1 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/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/libgcc_s.so.1 Reading symbols from /usr/lib/xorg/extra-modules/libglx.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/extra-modules/libglx.so Reading symbols from /usr/lib/nvidia-173/libGLcore.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/nvidia-173/libGLcore.so.1 Reading symbols from /usr/lib/nvidia-173/tls/libnvidia-tls.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/nvidia-173/tls/libnvidia-tls.so.1 Reading symbols from /usr/lib/xorg/modules/extensions/libextmod.so...warning: the debug information found in "/usr/lib/debug//usr/lib/xorg/modules/extensions/libextmod.so" does not match "/usr/lib/xorg/modules/extensions/libextmod.so" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/lib/xorg/modules/extensions/libextmod.so" does not match "/usr/lib/xorg/modules/extensions/libextmod.so" (CRC mismatch). (no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libextmod.so Reading symbols from /usr/lib/xorg/modules/extensions/libdbe.so...warning: the debug information found in "/usr/lib/debug//usr/lib/xorg/modules/extensions/libdbe.so" does not match "/usr/lib/xorg/modules/extensions/libdbe.so" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/lib/xorg/modules/extensions/libdbe.so" does not match "/usr/lib/xorg/modules/extensions/libdbe.so" (CRC mismatch). (no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libdbe.so Reading symbols from /usr/lib/xorg/modules/extensions/librecord.so...warning: the debug information found in "/usr/lib/debug//usr/lib/xorg/modules/extensions/librecord.so" does not match "/usr/lib/xorg/modules/extensions/librecord.so" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/lib/xorg/modules/extensions/librecord.so" does not match "/usr/lib/xorg/modules/extensions/librecord.so" (CRC mismatch). (no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/librecord.so Reading symbols from /usr/lib/xorg/modules/extensions/libdri.so...warning: the debug information found in "/usr/lib/debug//usr/lib/xorg/modules/extensions/libdri.so" does not match "/usr/lib/xorg/modules/extensions/libdri.so" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/lib/xorg/modules/extensions/libdri.so" does not match "/usr/lib/xorg/modules/extensions/libdri.so" (CRC mismatch). (no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libdri.so Reading symbols from /lib/libdrm.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libdrm.so.2 Reading symbols from /usr/lib/xorg/modules/extensions/libdri2.so...warning: the debug information found in "/usr/lib/debug//usr/lib/xorg/modules/extensions/libdri2.so" does not match "/usr/lib/xorg/modules/extensions/libdri2.so" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/lib/xorg/modules/extensions/libdri2.so" does not match "/usr/lib/xorg/modules/extensions/libdri2.so" (CRC mismatch). (no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libdri2.so Reading symbols from /usr/lib/xorg/extra-modules/nvidia_drv.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/extra-modules/nvidia_drv.so Reading symbols from /usr/lib/xorg/modules/libfb.so...warning: the debug information found in "/usr/lib/debug//usr/lib/xorg/modules/libfb.so" does not match "/usr/lib/xorg/modules/libfb.so" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/lib/xorg/modules/libfb.so" does not match "/usr/lib/xorg/modules/libfb.so" (CRC mismatch). (no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/libfb.so Reading symbols from /usr/lib/xorg/modules/libwfb.so...warning: the debug information found in "/usr/lib/debug//usr/lib/xorg/modules/libwfb.so" does not match "/usr/lib/xorg/modules/libwfb.so" (CRC mismatch). warning: the debug information found in "/usr/lib/debug/usr/lib/xorg/modules/libwfb.so" does not match "/usr/lib/xorg/modules/libwfb.so" (CRC mismatch). (no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/libwfb.so Reading symbols from /usr/lib/xorg/modules/input/evdev_drv.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/input/evdev_drv.so Reading symbols from /lib/tls/i686/cmov/libnss_compat.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_compat.so.2 Reading symbols from /lib/tls/i686/cmov/libnsl.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnsl.so.1 Reading symbols from /lib/tls/i686/cmov/libnss_nis.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_nis.so.2 Reading symbols from /lib/tls/i686/cmov/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/tls/i686/cmov/libnss_files.so.2 0x00ac7422 in __kernel_vsyscall () (gdb) cont Continuing. Program received signal SIGSEGV, Segmentation fault. 0x08087041 in dixChangeGC () (gdb) bt full #0 0x08087041 in dixChangeGC () No symbol table info available. #1 0x080879eb in ChangeGC () No symbol table info available. #2 0x081bc1b4 in ?? () No symbol table info available. #3 0x081bc3ae in miCompositeRects () No symbol table info available. #4 0x081139d2 in CompositeRects () No symbol table info available. #5 0x0811a77d in ?? () No symbol table info available. #6 0x08116a23 in ?? () No symbol table info available. #7 0x08072477 in ?? () No symbol table info available. #8 0x08066d7a in _start () No symbol table info available. (gdb) backtrace full #0 0x08087041 in dixChangeGC () No symbol table info available. #1 0x080879eb in ChangeGC () No symbol table info available. #2 0x081bc1b4 in ?? () No symbol table info available. #3 0x081bc3ae in miCompositeRects () No symbol table info available. #4 0x081139d2 in CompositeRects () No symbol table info available. #5 0x0811a77d in ?? () No symbol table info available. #6 0x08116a23 in ?? () No symbol table info available. #7 0x08072477 in ?? () No symbol table info available. #8 0x08066d7a in _start () No symbol table info available. (gdb) quit A debugging session is active. Inferior 1 [process 2562] will be detached. Quit anyway? (y or n) Not confirmed. (gdb) handle all nostop Signal Stop Print Pass to program Description SIGHUP No Yes Yes Hangup SIGQUIT No Yes Yes Quit SIGILL No Yes Yes Illegal instruction SIGABRT No Yes Yes Aborted SIGEMT No Yes Yes Emulation trap SIGFPE No Yes Yes Arithmetic exception SIGKILL No Yes Yes Killed SIGBUS No Yes Yes Bus error SIGSEGV No Yes Yes Segmentation fault SIGSYS No Yes Yes Bad system call SIGPIPE No Yes Yes Broken pipe SIGALRM No No Yes Alarm clock SIGTERM No Yes Yes Terminated SIGURG No No Yes Urgent I/O condition SIGSTOP No Yes Yes Stopped (signal) SIGTSTP No Yes Yes Stopped (user) SIGCONT No Yes Yes Continued SIGCHLD No No Yes Child status changed SIGTTIN No Yes Yes Stopped (tty input) SIGTTOU No Yes Yes Stopped (tty output) SIGIO No No Yes I/O possible SIGXCPU No Yes Yes CPU time limit exceeded SIGXFSZ No Yes Yes File size limit exceeded SIGVTALRM No No Yes Virtual timer expired SIGPROF No No Yes Profiling timer expired SIGWINCH No No Yes Window size changed SIGLOST No Yes Yes Resource lost SIGUSR1 No Yes Yes User defined signal 1 SIGUSR2 No Yes Yes User defined signal 2 SIGPWR No Yes Yes Power fail/restart SIGPOLL No No Yes Pollable event occurred SIGWIND No Yes Yes SIGWIND SIGPHONE No Yes Yes SIGPHONE SIGWAITING No No Yes Process's LWPs are blocked SIGLWP No No Yes Signal LWP SIGDANGER No Yes Yes Swap space dangerously low SIGGRANT No Yes Yes Monitor mode granted SIGRETRACT No Yes Yes Need to relinquish monitor mode SIGMSG No Yes Yes Monitor mode data available SIGSOUND No Yes Yes Sound completed SIGSAK No Yes Yes Secure attention SIGPRIO No Yes Yes SIGPRIO SIG33 No No Yes Real-time event 33 SIG34 No Yes Yes Real-time event 34 SIG35 No Yes Yes Real-time event 35 SIG36 No Yes Yes Real-time event 36 SIG37 No Yes Yes Real-time event 37 SIG38 No Yes Yes Real-time event 38 SIG39 No Yes Yes Real-time event 39 SIG40 No Yes Yes Real-time event 40 SIG41 No Yes Yes Real-time event 41 SIG42 No Yes Yes Real-time event 42 SIG43 No Yes Yes Real-time event 43 SIG44 No Yes Yes Real-time event 44 SIG45 No Yes Yes Real-time event 45 SIG46 No Yes Yes Real-time event 46 SIG47 No Yes Yes Real-time event 47 SIG48 No Yes Yes Real-time event 48 SIG49 No Yes Yes Real-time event 49 SIG50 No Yes Yes Real-time event 50 SIG51 No Yes Yes Real-time event 51 SIG52 No Yes Yes Real-time event 52 SIG53 No Yes Yes Real-time event 53 SIG54 No Yes Yes Real-time event 54 SIG55 No Yes Yes Real-time event 55 SIG56 No Yes Yes Real-time event 56 SIG57 No Yes Yes Real-time event 57 SIG58 No Yes Yes Real-time event 58 SIG59 No Yes Yes Real-time event 59 SIG60 No Yes Yes Real-time event 60 SIG61 No Yes Yes Real-time event 61 SIG62 No Yes Yes Real-time event 62 SIG63 No Yes Yes Real-time event 63 SIGCANCEL No No Yes LWP internal signal SIG32 No No Yes Real-time event 32 SIG64 No Yes Yes Real-time event 64 SIG65 No Yes Yes Real-time event 65 SIG66 No Yes Yes Real-time event 66 SIG67 No Yes Yes Real-time event 67 SIG68 No Yes Yes Real-time event 68 SIG69 No Yes Yes Real-time event 69 SIG70 No Yes Yes Real-time event 70 SIG71 No Yes Yes Real-time event 71 SIG72 No Yes Yes Real-time event 72 SIG73 No Yes Yes Real-time event 73 SIG74 No Yes Yes Real-time event 74 SIG75 No Yes Yes Real-time event 75 SIG76 No Yes Yes Real-time event 76 SIG77 No Yes Yes Real-time event 77 SIG78 No Yes Yes Real-time event 78 SIG79 No Yes Yes Real-time event 79 SIG80 No Yes Yes Real-time event 80 SIG81 No Yes Yes Real-time event 81 SIG82 No Yes Yes Real-time event 82 SIG83 No Yes Yes Real-time event 83 SIG84 No Yes Yes Real-time event 84 SIG85 No Yes Yes Real-time event 85 SIG86 No Yes Yes Real-time event 86 SIG87 No Yes Yes Real-time event 87 SIG88 No Yes Yes Real-time event 88 SIG89 No Yes Yes Real-time event 89 SIG90 No Yes Yes Real-time event 90 SIG91 No Yes Yes Real-time event 91 SIG92 No Yes Yes Real-time event 92 SIG93 No Yes Yes Real-time event 93 SIG94 No Yes Yes Real-time event 94 SIG95 No Yes Yes Real-time event 95 SIG96 No Yes Yes Real-time event 96 SIG97 No Yes Yes Real-time event 97 SIG98 No Yes Yes Real-time event 98 SIG99 No Yes Yes Real-time event 99 SIG100 No Yes Yes Real-time event 100 SIG101 No Yes Yes Real-time event 101 SIG102 No Yes Yes Real-time event 102 SIG103 No Yes Yes Real-time event 103 SIG104 No Yes Yes Real-time event 104 SIG105 No Yes Yes Real-time event 105 SIG106 No Yes Yes Real-time event 106 SIG107 No Yes Yes Real-time event 107 SIG108 No Yes Yes Real-time event 108 SIG109 No Yes Yes Real-time event 109 SIG110 No Yes Yes Real-time event 110 SIG111 No Yes Yes Real-time event 111 SIG112 No Yes Yes Real-time event 112 SIG113 No Yes Yes Real-time event 113 SIG114 No Yes Yes Real-time event 114 SIG115 No Yes Yes Real-time event 115 SIG116 No Yes Yes Real-time event 116 SIG117 No Yes Yes Real-time event 117 SIG118 No Yes Yes Real-time event 118 SIG119 No Yes Yes Real-time event 119 SIG120 No Yes Yes Real-time event 120 SIG121 No Yes Yes Real-time event 121 SIG122 No Yes Yes Real-time event 122 SIG123 No Yes Yes Real-time event 123 SIG124 No Yes Yes Real-time event 124 SIG125 No Yes Yes Real-time event 125 SIG126 No Yes Yes Real-time event 126 SIG127 No Yes Yes Real-time event 127 SIGINFO No Yes Yes Information request EXC_BAD_ACCESS No Yes Yes Could not access memory EXC_BAD_INSTRUCTION No Yes Yes Illegal instruction/operand EXC_ARITHMETIC No Yes Yes Arithmetic exception EXC_EMULATION No Yes Yes Emulation instruction EXC_SOFTWARE No Yes Yes Software generated exception EXC_BREAKPOINT No Yes Yes Breakpoint (gdb) handle all pass Signal Stop Print Pass to program Description SIGHUP No Yes Yes Hangup SIGQUIT No Yes Yes Quit SIGILL No Yes Yes Illegal instruction SIGABRT No Yes Yes Aborted SIGEMT No Yes Yes Emulation trap SIGFPE No Yes Yes Arithmetic exception SIGKILL No Yes Yes Killed SIGBUS No Yes Yes Bus error SIGSEGV No Yes Yes Segmentation fault SIGSYS No Yes Yes Bad system call SIGPIPE No Yes Yes Broken pipe SIGALRM No No Yes Alarm clock SIGTERM No Yes Yes Terminated SIGURG No No Yes Urgent I/O condition SIGSTOP No Yes Yes Stopped (signal) SIGTSTP No Yes Yes Stopped (user) SIGCONT No Yes Yes Continued SIGCHLD No No Yes Child status changed SIGTTIN No Yes Yes Stopped (tty input) SIGTTOU No Yes Yes Stopped (tty output) SIGIO No No Yes I/O possible SIGXCPU No Yes Yes CPU time limit exceeded SIGXFSZ No Yes Yes File size limit exceeded SIGVTALRM No No Yes Virtual timer expired SIGPROF No No Yes Profiling timer expired SIGWINCH No No Yes Window size changed SIGLOST No Yes Yes Resource lost SIGUSR1 No Yes Yes User defined signal 1 SIGUSR2 No Yes Yes User defined signal 2 SIGPWR No Yes Yes Power fail/restart SIGPOLL No No Yes Pollable event occurred SIGWIND No Yes Yes SIGWIND SIGPHONE No Yes Yes SIGPHONE SIGWAITING No No Yes Process's LWPs are blocked SIGLWP No No Yes Signal LWP SIGDANGER No Yes Yes Swap space dangerously low SIGGRANT No Yes Yes Monitor mode granted SIGRETRACT No Yes Yes Need to relinquish monitor mode SIGMSG No Yes Yes Monitor mode data available SIGSOUND No Yes Yes Sound completed SIGSAK No Yes Yes Secure attention SIGPRIO No Yes Yes SIGPRIO SIG33 No No Yes Real-time event 33 SIG34 No Yes Yes Real-time event 34 SIG35 No Yes Yes Real-time event 35 SIG36 No Yes Yes Real-time event 36 SIG37 No Yes Yes Real-time event 37 SIG38 No Yes Yes Real-time event 38 SIG39 No Yes Yes Real-time event 39 SIG40 No Yes Yes Real-time event 40 SIG41 No Yes Yes Real-time event 41 SIG42 No Yes Yes Real-time event 42 SIG43 No Yes Yes Real-time event 43 SIG44 No Yes Yes Real-time event 44 SIG45 No Yes Yes Real-time event 45 SIG46 No Yes Yes Real-time event 46 SIG47 No Yes Yes Real-time event 47 SIG48 No Yes Yes Real-time event 48 SIG49 No Yes Yes Real-time event 49 SIG50 No Yes Yes Real-time event 50 SIG51 No Yes Yes Real-time event 51 SIG52 No Yes Yes Real-time event 52 SIG53 No Yes Yes Real-time event 53 SIG54 No Yes Yes Real-time event 54 SIG55 No Yes Yes Real-time event 55 SIG56 No Yes Yes Real-time event 56 SIG57 No Yes Yes Real-time event 57 SIG58 No Yes Yes Real-time event 58 SIG59 No Yes Yes Real-time event 59 SIG60 No Yes Yes Real-time event 60 SIG61 No Yes Yes Real-time event 61 SIG62 No Yes Yes Real-time event 62 SIG63 No Yes Yes Real-time event 63 SIGCANCEL No No Yes LWP internal signal SIG32 No No Yes Real-time event 32 SIG64 No Yes Yes Real-time event 64 SIG65 No Yes Yes Real-time event 65 SIG66 No Yes Yes Real-time event 66 SIG67 No Yes Yes Real-time event 67 SIG68 No Yes Yes Real-time event 68 SIG69 No Yes Yes Real-time event 69 SIG70 No Yes Yes Real-time event 70 SIG71 No Yes Yes Real-time event 71 SIG72 No Yes Yes Real-time event 72 SIG73 No Yes Yes Real-time event 73 SIG74 No Yes Yes Real-time event 74 SIG75 No Yes Yes Real-time event 75 SIG76 No Yes Yes Real-time event 76 SIG77 No Yes Yes Real-time event 77 SIG78 No Yes Yes Real-time event 78 SIG79 No Yes Yes Real-time event 79 SIG80 No Yes Yes Real-time event 80 SIG81 No Yes Yes Real-time event 81 SIG82 No Yes Yes Real-time event 82 SIG83 No Yes Yes Real-time event 83 SIG84 No Yes Yes Real-time event 84 SIG85 No Yes Yes Real-time event 85 SIG86 No Yes Yes Real-time event 86 SIG87 No Yes Yes Real-time event 87 SIG88 No Yes Yes Real-time event 88 SIG89 No Yes Yes Real-time event 89 SIG90 No Yes Yes Real-time event 90 SIG91 No Yes Yes Real-time event 91 SIG92 No Yes Yes Real-time event 92 SIG93 No Yes Yes Real-time event 93 SIG94 No Yes Yes Real-time event 94 SIG95 No Yes Yes Real-time event 95 SIG96 No Yes Yes Real-time event 96 SIG97 No Yes Yes Real-time event 97 SIG98 No Yes Yes Real-time event 98 SIG99 No Yes Yes Real-time event 99 SIG100 No Yes Yes Real-time event 100 SIG101 No Yes Yes Real-time event 101 SIG102 No Yes Yes Real-time event 102 SIG103 No Yes Yes Real-time event 103 SIG104 No Yes Yes Real-time event 104 SIG105 No Yes Yes Real-time event 105 SIG106 No Yes Yes Real-time event 106 SIG107 No Yes Yes Real-time event 107 SIG108 No Yes Yes Real-time event 108 SIG109 No Yes Yes Real-time event 109 SIG110 No Yes Yes Real-time event 110 SIG111 No Yes Yes Real-time event 111 SIG112 No Yes Yes Real-time event 112 SIG113 No Yes Yes Real-time event 113 SIG114 No Yes Yes Real-time event 114 SIG115 No Yes Yes Real-time event 115 SIG116 No Yes Yes Real-time event 116 SIG117 No Yes Yes Real-time event 117 SIG118 No Yes Yes Real-time event 118 SIG119 No Yes Yes Real-time event 119 SIG120 No Yes Yes Real-time event 120 SIG121 No Yes Yes Real-time event 121 SIG122 No Yes Yes Real-time event 122 SIG123 No Yes Yes Real-time event 123 SIG124 No Yes Yes Real-time event 124 SIG125 No Yes Yes Real-time event 125 SIG126 No Yes Yes Real-time event 126 SIG127 No Yes Yes Real-time event 127 SIGINFO No Yes Yes Information request EXC_BAD_ACCESS No Yes Yes Could not access memory EXC_BAD_INSTRUCTION No Yes Yes Illegal instruction/operand EXC_ARITHMETIC No Yes Yes Arithmetic exception EXC_EMULATION No Yes Yes Emulation instruction EXC_SOFTWARE No Yes Yes Software generated exception EXC_BREAKPOINT No Yes Yes Breakpoint (gdb) handle 11 stop Signal Stop Print Pass to program Description SIGSEGV Yes Yes Yes Segmentation fault (gdb) cont Continuing. Program exited with code 01. (gdb) quit