GNU gdb (GDB) 7.2 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 "x86_64-unknown-linux-gnu". For bug reporting instructions, please see: . Attaching to process 4085 Reading symbols from /usr/bin/Xorg...(no debugging symbols found)...done. Reading symbols from /lib/libudev.so.0...(no debugging symbols found)...done. Loaded symbols for /lib/libudev.so.0 Reading symbols from /lib/libgcrypt.so.11...(no debugging symbols found)...done. Loaded symbols for /lib/libgcrypt.so.11 Reading symbols from /lib/libdl.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libdl.so.2 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/libpthread.so.0...(no debugging symbols found)...done. [Thread debugging using libthread_db enabled] Loaded symbols for /lib/libpthread.so.0 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/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/libXdmcp.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libXdmcp.so.6 Reading symbols from /lib/libm.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/libm.so.6 Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done. Loaded symbols for /lib/librt.so.1 Reading symbols from /lib/libc.so.6...(no debugging symbols found)...done. Loaded symbols for /lib/libc.so.6 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/ld-linux-x86-64.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/ld-linux-x86-64.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 /usr/lib/libz.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libz.so.1 Reading symbols from /usr/lib/libfontenc.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libfontenc.so.1 Reading symbols from /usr/lib/libgcc_s.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libgcc_s.so.1 Reading symbols from /usr/lib/xorg/modules/extensions/libextmod.so...(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...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libdbe.so Reading symbols from /usr/lib/xorg/modules/extensions/libglx.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libglx.so Reading symbols from /usr/lib/xorg/modules/extensions/librecord.so...(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...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libdri.so Reading symbols from /usr/lib/libdrm.so.2...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libdrm.so.2 Reading symbols from /usr/lib/xorg/modules/extensions/libdri2.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/extensions/libdri2.so Reading symbols from /usr/lib/xorg/modules/drivers/radeon_drv.so...done. Loaded symbols for /usr/lib/xorg/modules/drivers/radeon_drv.so Reading symbols from /usr/lib/libdrm_radeon.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libdrm_radeon.so.1 Reading symbols from /usr/lib/xorg/modules/libfb.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/libfb.so Reading symbols from /usr/lib/xorg/modules/libexa.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/libexa.so Reading symbols from /usr/lib/xorg/modules/dri/r600_dri.so...(no debugging symbols found)...done. Loaded symbols for /usr/lib/xorg/modules/dri/r600_dri.so Reading symbols from /usr/lib/libexpat.so.1...(no debugging symbols found)...done. Loaded symbols for /usr/lib/libexpat.so.1 Reading symbols from /usr/lib/libstdc++.so.6...(no debugging symbols found)...done. Loaded symbols for /usr/lib/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 /lib/libnss_files.so.2...(no debugging symbols found)...done. Loaded symbols for /lib/libnss_files.so.2 0x00007fa0f661d2d3 in select () from /lib/libc.so.6 Program received signal SIGUSR1, User defined signal 1. Program received signal SIGSEGV, Segmentation fault. 0x00007fa0f49918e0 in dixGetPrivateAddr (privates=0x68, key=0x7fa0f4bd76c0) at /usr/include/xorg/privates.h:123 123 return (char *) (*privates) + key->offset; #0 0x00007fa0f49918e0 in dixGetPrivateAddr (privates=0x68, key=0x7fa0f4bd76c0) at /usr/include/xorg/privates.h:123 __PRETTY_FUNCTION__ = "dixGetPrivateAddr" #1 0x00007fa0f4991971 in dixLookupPrivate (privates=0x68, key=0x7fa0f4bd76c0) at /usr/include/xorg/privates.h:165 No locals. #2 0x00007fa0f4992247 in ListDelDRI2ClientEvents (client=0x0, entry=0x1a11cf0) at radeon_dri2.c:499 pClientPriv = 0x95ca80 #3 0x00007fa0f4993098 in radeon_dri2_schedule_swap (client=0x1a11d50, draw=0x1413420, front=0x1b71000, back=0x1ade350, target_msc=0x7fff908a22f8, divisor=0, remainder=0, func=0x7fa0f4bdb580, data=0x1413420) at radeon_dri2.c:988 screen = 0x95c500 scrn = 0x950b70 info = 0x953ed0 vbl = {request = {type = 2424971776, sequence = 32767, signal = 140329275172528}, reply = {type = 2424971776, sequence = 32767, tval_sec = 140329275172528, tval_usec = 3}} ret = 0 crtc = -1 flip = 0 swap_info = 0x1a11cb0 swap_type = DRI2_SWAP current_msc = 140735618359928 box = {x1 = 0, y1 = 0, x2 = 300, y2 = 300} region = {extents = {x1 = 0, y1 = 0, x2 = 300, y2 = 300}, data = 0x0} #4 0x00007fa0f4bda9ba in DRI2SwapBuffers () from /usr/lib/xorg/modules/extensions/libdri2.so No symbol table info available. #5 0x00007fa0f4bdbda5 in ?? () from /usr/lib/xorg/modules/extensions/libdri2.so No symbol table info available. #6 0x000000000042a2e1 in ?? () No symbol table info available. #7 0x000000000042123e in _start () No symbol table info available. Program received signal SIGABRT, Aborted. 0x00007fa0f6587595 in raise () from /lib/libc.so.6