GNU gdb (GDB) 7.9.1 Copyright (C) 2015 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-unknown-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"... Attaching to process 10190 Reading symbols from /usr/lib/xorg-server/Xorg...(no debugging symbols found)...done. Reading symbols from /usr/lib/libdbus-1.so.3...(no debugging symbols found)...done. Reading symbols from /usr/lib/libudev.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libgcrypt.so.20...(no debugging symbols found)...done. Reading symbols from /usr/lib/libdl.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libunwind.so.8...(no debugging symbols found)...done. Reading symbols from /usr/lib/libpciaccess.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libdrm.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libpixman-1.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libXfont.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libXau.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libsystemd.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxshmfence.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libXdmcp.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libm.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libc.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libpthread.so.0...(no debugging symbols found)...done. [New LWP 10191] [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". Reading symbols from /usr/lib/librt.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libresolv.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libcap.so.2...(no debugging symbols found)...done. Reading symbols from /lib64/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libgpg-error.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/liblzma.so.5...(no debugging symbols found)...done. Reading symbols from /usr/lib/libfreetype.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libfontenc.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/liblz4.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libattr.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libbz2.so.1.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libpng16.so.16...(no debugging symbols found)...done. Reading symbols from /usr/lib/libharfbuzz.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libglib-2.0.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libgraphite2.so.3...(no debugging symbols found)...done. Reading symbols from /usr/lib/libpcre.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/extensions/libglx.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/libGL.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libexpat.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libglapi.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libXext.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libXdamage.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libXfixes.so.3...(no debugging symbols found)...done. Reading symbols from /usr/lib/libX11-xcb.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libX11.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-glx.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-dri2.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-dri3.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-present.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-randr.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-xfixes.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-render.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-shape.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb-sync.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libxcb.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libXxf86vm.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/drivers/ati_drv.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/drivers/radeon_drv.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/libdrm_radeon.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/libexa.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/libfb.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/dri/r600_dri.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/libdrm_nouveau.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/libelf.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libLLVM-3.6.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/libstdc++.so.6...done. Reading symbols from /usr/lib/libgcc_s.so.1...done. Reading symbols from /usr/lib/libffi.so.6...(no debugging symbols found)...done. Reading symbols from /usr/lib/libedit.so.0...(no debugging symbols found)...done. Reading symbols from /usr/lib/libncursesw.so.5...(no debugging symbols found)...done. Reading symbols from /usr/lib/libtxc_dxtn.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/input/evdev_drv.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/libmtdev.so.1...(no debugging symbols found)...done. Reading symbols from /usr/lib/libevdev.so.2...(no debugging symbols found)...done. Reading symbols from /usr/lib/xorg/modules/input/synaptics_drv.so...(no debugging symbols found)...done. Reading symbols from /usr/lib/libnss_files.so.2...(no debugging symbols found)...done. 0x00007f2036311b03 in select () from /usr/lib/libc.so.6 (gdb) cont Continuing. Program received signal SIGSEGV, Segmentation fault. 0x00007f2030d4d3b2 in ?? () from /usr/lib/xorg/modules/drivers/radeon_drv.so (gdb) bt f #0 0x00007f2030d4d3b2 in ?? () from /usr/lib/xorg/modules/drivers/radeon_drv.so No symbol table info available. #1 0x000000000058244f in ?? () No symbol table info available. #2 0x000000000043d84a in BlockHandler () No symbol table info available. #3 0x000000000058f4c3 in WaitForSomething () No symbol table info available. #4 0x0000000000438be1 in ?? () No symbol table info available. #5 0x000000000043cf0b in ?? () No symbol table info available. #6 0x00007f2036251790 in __libc_start_main () from /usr/lib/libc.so.6 No symbol table info available. #7 0x0000000000427319 in _start () No symbol table info available. (gdb) bt f #0 0x00007f2030d4d3b2 in ?? () from /usr/lib/xorg/modules/drivers/radeon_drv.so No symbol table info available. #1 0x000000000058244f in ?? () No symbol table info available. #2 0x000000000043d84a in BlockHandler () No symbol table info available. #3 0x000000000058f4c3 in WaitForSomething () No symbol table info available. #4 0x0000000000438be1 in ?? () No symbol table info available. #5 0x000000000043cf0b in ?? () No symbol table info available. #6 0x00007f2036251790 in __libc_start_main () from /usr/lib/libc.so.6 No symbol table info available. #7 0x0000000000427319 in _start () No symbol table info available. (gdb) #0 0x00007f2030d4d3b2 in ?? () from /usr/lib/xorg/modules/drivers/radeon_drv.so No symbol table info available. #1 0x000000000058244f in ?? () No symbol table info available. #2 0x000000000043d84a in BlockHandler () No symbol table info available. #3 0x000000000058f4c3 in WaitForSomething () No symbol table info available. #4 0x0000000000438be1 in ?? () No symbol table info available. #5 0x000000000043cf0b in ?? () No symbol table info available. #6 0x00007f2036251790 in __libc_start_main () from /usr/lib/libc.so.6 No symbol table info available. #7 0x0000000000427319 in _start () No symbol table info available. (gdb) #0 0x00007f2030d4d3b2 in ?? () from /usr/lib/xorg/modules/drivers/radeon_drv.so No symbol table info available. #1 0x000000000058244f in ?? () No symbol table info available. #2 0x000000000043d84a in BlockHandler () No symbol table info available. #3 0x000000000058f4c3 in WaitForSomething () No symbol table info available. #4 0x0000000000438be1 in ?? () No symbol table info available. #5 0x000000000043cf0b in ?? () No symbol table info available. #6 0x00007f2036251790 in __libc_start_main () from /usr/lib/libc.so.6 No symbol table info available. #7 0x0000000000427319 in _start () No symbol table info available. (gdb) detach Detaching from program: /usr/lib/xorg-server/Xorg, process 10190 (gdb) detachquit