GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1 Copyright (C) 2014 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 "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /usr/bin/Xorg...Reading symbols from /usr/lib/debug//usr/bin/Xorg...done. done. (gdb) attach 26027 Attaching to program: /usr/bin/Xorg, process 26027 Reading symbols from /lib/x86_64-linux-gnu/libudev.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libudev.so.1 Reading symbols from /lib/x86_64-linux-gnu/libselinux.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libselinux.so.1 Reading symbols from /lib/x86_64-linux-gnu/libgcrypt.so.11...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libgcrypt.so.11 Reading symbols from /lib/x86_64-linux-gnu/libdl.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libdl-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libdl.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libpciaccess.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libpciaccess.so.0 Reading symbols from /lib/x86_64-linux-gnu/libpthread.so.0...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libpthread-2.19.so...done. done. [New LWP 26028] [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". Loaded symbols for /lib/x86_64-linux-gnu/libpthread.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libdrm.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libdrm.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libpixman-1.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libpixman-1.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libXfont.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXfont.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libXau.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXau.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libxshmfence.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxshmfence.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libXdmcp.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 Reading symbols from /lib/x86_64-linux-gnu/libaudit.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libaudit.so.1 Reading symbols from /lib/x86_64-linux-gnu/libm.so.6...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libm-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libm.so.6 Reading symbols from /lib/x86_64-linux-gnu/libc.so.6...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libc-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libc.so.6 Reading symbols from /lib/x86_64-linux-gnu/libcgmanager.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libcgmanager.so.0 Reading symbols from /lib/x86_64-linux-gnu/libnih.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libnih.so.1 Reading symbols from /lib/x86_64-linux-gnu/libnih-dbus.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libnih-dbus.so.1 Reading symbols from /lib/x86_64-linux-gnu/libdbus-1.so.3...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libdbus-1.so.3 Reading symbols from /lib/x86_64-linux-gnu/librt.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/librt-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/librt.so.1 Reading symbols from /lib64/ld-linux-x86-64.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/ld-2.19.so...done. done. Loaded symbols for /lib64/ld-linux-x86-64.so.2 Reading symbols from /lib/x86_64-linux-gnu/libpcre.so.3...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libpcre.so.3 Reading symbols from /lib/x86_64-linux-gnu/libgpg-error.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libgpg-error.so.0 Reading symbols from /lib/x86_64-linux-gnu/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libz.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libfreetype.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libfreetype.so.6 Reading symbols from /lib/x86_64-linux-gnu/libbz2.so.1.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libbz2.so.1.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libfontenc.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libfontenc.so.1 Reading symbols from /lib/x86_64-linux-gnu/libpng12.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libpng12.so.0 Reading symbols from /lib/x86_64-linux-gnu/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libgcc_s.so.1 Reading symbols from /usr/lib/xorg/modules/extensions/libglx.so...Reading symbols from /usr/lib/debug//usr/lib/xorg/modules/extensions/libglx.so...done. done. Loaded symbols for /usr/lib/xorg/modules/extensions/libglx.so Reading symbols from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libglapi.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libglapi.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libXext.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXext.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libXdamage.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXdamage.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libXfixes.so.3...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXfixes.so.3 Reading symbols from /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libX11.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libX11.so.6 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb-present.so.0...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb-present.so.0 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libxcb.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libxcb.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 Reading symbols from /usr/lib/xorg/modules/drivers/intel_drv.so...done. Loaded symbols for /usr/lib/xorg/modules/drivers/intel_drv.so Reading symbols from /usr/lib/x86_64-linux-gnu/libdrm_intel.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libdrm_intel.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so...Reading symbols from /usr/lib/debug//usr/lib/x86_64-linux-gnu/dri/radeon_dri.so...done. done. Loaded symbols for /usr/lib/x86_64-linux-gnu/dri/i965_dri.so Reading symbols from /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libdrm_nouveau.so.2 Reading symbols from /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libdrm_radeon.so.1 Reading symbols from /lib/x86_64-linux-gnu/libexpat.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/x86_64-linux-gnu/libexpat.so.1 Reading symbols from /usr/lib/x86_64-linux-gnu/libstdc++.so.6...(no debugging symbols found)...done. Traceback (most recent call last): File "/usr/share/gdb/auto-load/usr/lib/x86_64-linux-gnu/libstdc++.so.6.0.19-gdb.py", line 63, in from libstdcxx.v6.printers import register_libstdcxx_printers ImportError: No module named 'libstdcxx' Loaded symbols for /usr/lib/x86_64-linux-gnu/libstdc++.so.6 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 /usr/lib/x86_64-linux-gnu/libmtdev.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/x86_64-linux-gnu/libmtdev.so.1 Reading symbols from /lib/x86_64-linux-gnu/libnss_compat.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_compat-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnss_compat.so.2 Reading symbols from /lib/x86_64-linux-gnu/libnsl.so.1...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnsl-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnsl.so.1 Reading symbols from /lib/x86_64-linux-gnu/libnss_nis.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_nis-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnss_nis.so.2 Reading symbols from /lib/x86_64-linux-gnu/libnss_files.so.2...Reading symbols from /usr/lib/debug//lib/x86_64-linux-gnu/libnss_files-2.19.so...done. done. Loaded symbols for /lib/x86_64-linux-gnu/libnss_files.so.2 0x00007ffa66ee8da3 in select () at ../sysdeps/unix/syscall-template.S:81 81 ../sysdeps/unix/syscall-template.S: No such file or directory. (gdb) backtrace full #0 0x00007ffa66ee8da3 in select () at ../sysdeps/unix/syscall-template.S:81 No locals. #1 0x00007ffa69482d8c in WaitForSomething (pClientsReady=pClientsReady@entry=0x7ffa6a6246c0) at ../../os/WaitFor.c:226 i = waittime = {tv_sec = 140713510925760, tv_usec = 0} wt = 0x0 timeout = clientsReadable = {fds_bits = {0 }} clientsWritable = {fds_bits = {0, 140713484410429, 558345748480, 0, 140713503906208, 140713483588135, 140713487558824, 136, 6, 140713377709372, 140713482313728, 140713377720423, 72, 140713482313728, 140713506485888, 140713506485904}} selecterr = nready = 0 devicesReadable = {fds_bits = {140713506485928, 0, 140734211720736, 140713377746448, 140713503906440, 140734211720736, 5207283792512648, 140734211720768, 140713503875584, 12903776297, 140713482317824, 4, 0, 0, 0, 7168}} now = someReady = 0 #2 0x00007ffa69331c61 in Dispatch () at ../../dix/dispatch.c:362 clientReady = 0x7ffa6a6246c0 result = client = nready = icheck = 0x7ffa6971e990 start_tick = #3 0x00007ffa69335d9a in dix_main (argc=13, argv=0x7fff3cb288c8, envp=) at ../../dix/main.c:294 i = alwaysCheckForInput = {0, 1} #4 0x00007ffa66e18ec5 in __libc_start_main (main=0x7ffa693211c0
, argc=13, argv=0x7fff3cb288c8, init=, fini=, rtld_fini=, stack_end=0x7fff3cb288b8) at libc-start.c:287 result = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -8394811026010626040, 140713483440581, 140734211721408, 0, 0, 8395231683430492168, 8397926989903734792}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x7ffa694954a0 <__libc_csu_init>, 0x7fff3cb288c8}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1766413472}}} not_first_call = #5 0x00007ffa693211ee in _start () No symbol table info available. (gdb) quit A debugging session is active. Inferior 1 [process 26027] will be detached. Quit anyway? (y or n) Detaching from program: /usr/bin/Xorg, process 26027