GNU gdb (Gentoo 7.11.1 vanilla) 7.11.1 Copyright (C) 2016 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-pc-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...done. warning: core file may not match specified executable file. [New LWP 21624] [New LWP 21629] [New LWP 21628] [New LWP 21627] warning: Could not load shared library symbols for linux-vdso.so.1. Do you need "set solib-search-path" or "set sysroot"? [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `/usr/bin/X -nolisten tcp -auth /var/run/sddm/{b40d68c0-714a-4f62-9962-b29e13c81'. Program terminated with signal SIGABRT, Aborted. #0 0x00007f9c6c141128 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 54 return INLINE_SYSCALL (tgkill, 3, pid, selftid, sig); [Current thread is 1 (Thread 0x7f9c6e5a5900 (LWP 21624))] #0 0x00007f9c6c141128 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54 resultvar = 0 pid = 21624 selftid = 21624 #1 0x00007f9c6c14257a in __GI_abort () at abort.c:89 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x36633966370a2030, sa_sigaction = 0x36633966370a2030}, sa_mask = {__val = {3256155514248115813, 3474075446830261815, 3255383588231721017, 3472893445204353136, 7363449369391018032, 3690471420409231392, 2314885530818453558, 2314885530818453536, 7091318037929795616, 3328772983915230262, 7365367189377790770, 3474861597677478713, 3919039211917619248, 2319406792442918501, 3472328228581767026, 3472310704041636658}}, sa_flags = 543567930, sa_restorer = 0x7ffd3d285658} sigs = {__val = {32, 0 }} #2 0x00007f9c6c17de11 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7f9c6c272020 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175 ap = fd = 59 on_2 = list = nlist = cp = written = #3 0x00007f9c6c183926 in malloc_printerr (action=3, str=0x7f9c6c26eea9 "free(): invalid pointer", ptr=, ar_ptr=) at malloc.c:5007 buf = "00007ffd3d286280" cp = ar_ptr = ptr = str = 0x7f9c6c26eea9 "free(): invalid pointer" action = 3 #4 0x00007f9c6c18411e in _int_free (av=0x7f9c6c4a1b00 , p=, have_lock=0) at malloc.c:3868 size = fb = nextchunk = nextsize = nextinuse = prevsize = bck = fwd = errstr = locked = __func__ = "_int_free" #5 0x00007f9c67d56a8e in backlight_disable (b=0x21c4170) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/backlight.c:524 No locals. #6 0x00007f9c67deb973 in sna_output_backlight_disable (sna_output=0x21c4110) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_display.c:887 output = 0x21c41e0 #7 0x00007f9c67debabb in sna_output_backlight_on (sna_output=0x21c4110) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_display.c:943 No locals. #8 0x00007f9c67df42fc in sna_output_create_ranged_atom (output=0x21c41e0, atom=0x0, name=0x7f9c67df42fc "u\320H\211UȉM\304D\211E\300L\211M\270dH\213\004%(", min=32765, max=1026054688, value=35406096, immutable=0) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_display.c:4278 err = 3 atom_range = {1851105280, 32668} #9 0x00007f9c67dec555 in sna_crtc_force_outputs_off (crtc=0x21c1ca0) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_display.c:1283 config = 0x21c1950 i = 3099679 __func__ = "sna_crtc_force_outputs_off" #10 0x00007f9c67decf6a in overlap (a=0x8302e0 , b=0x830310 ) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_display.c:1627 No locals. #11 0x00007f9c67df149e in __sna_crtc_set_mode (crtc=0x21c1ca0) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_display.c:3064 sna = 0x7f9c6e55a000 sna_crtc = 0x21c1a40 saved_bo = 0x2365e30 bo = 0x2365e30 saved_offset = 0 saved_transform = false saved_hwcursor = true saved_cursor_transform = false ret = 0 __func__ = "__sna_crtc_set_mode" #12 0x00007f9c67df1b78 in sna_mode_adjust_frame (sna=0x2365e30, x=0, y=37117488) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_display.c:3170 config = 0x0 crtc = 0x21c1ca0 saved_x = 1742674808 saved_y = 32668 #13 0x00007f9c67e04c63 in sna_save_screen (screen=0x7f9c6c1411b0 <__restore_rt>, mode=32668) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_driver.c:363 scrn = 0xe18ede8a9b1e5d00 #14 0x00007f9c67e04d39 in sna_setup_capabilities (scrn=0x220fa40, fd=1) at /usr/src/debug/x11-drivers/xf86-video-intel-2.99.917_p20161024/325570e731b5819e28ce6bae72242914bb2d7f8e/src/sna/sna_driver.c:392 value = 18446603348118943136 #15 0x0000000000466c4e in dixSaveScreens (client=, on=on@entry=1, mode=mode@entry=0) at /usr/src/debug/x11-base/xorg-server-1.18.4/xorg-server-1.18.4/dix/window.c:3149 pScreen = 0x220fa40 rc = i = 0 what = type = #16 0x000000000056ee2e in mieqProcessInputEvents () at /usr/src/debug/x11-base/xorg-server-1.18.4/xorg-server-1.18.4/mi/mieq.c:631 e = screen = 0x220fa40 event = {any = {header = 255 '\377', type = ET_RawKeyRelease, length = 624, time = 3099123}, device_event = {header = 255 '\377', type = ET_RawKeyRelease, length = 624, time = 3099123, deviceid = 10, sourceid = 10, detail = {button = 36, key = 36}, touchid = 0, root_x = 0, root_x_frac = 0, root_y = 0, root_y_frac = 0, buttons = '\000' , valuators = {mask = "\000\000\000\000", mode = "\000\000\000\000", data = {0 }}, mods = {base = 0, latched = 0, locked = 0, effective = 0}, group = {base = 0 '\000', latched = 0 '\000', locked = 0 '\000', effective = 0 '\000'}, root = 0, corestate = 0, key_repeat = 0, flags = 0, resource = 0}, changed_event = {header = 255 '\377', type = ET_RawKeyRelease, length = 624, time = 3099123, deviceid = 10, flags = 10, masterid = 36, sourceid = 0, buttons = {num_buttons = 0, names = {0 }}, num_valuators = 0, valuators = {{ min = 0, max = 0, value = 0, resolution = 0, mode = 0 '\000', name = 0, scroll = {type = SCROLL_TYPE_NONE, increment = 0, flags = 0}} }, keys = {min_keycode = 0, max_keycode = 0}}, touch_ownership_event = {header = 255 '\377', type = ET_RawKeyRelease, length = 624, time = 3099123, deviceid = 10, sourceid = 10, touchid = 36, reason = 0 '\000', resource = 0, flags = 0}, barrier_event = {header = 255 '\377', type = ET_RawKeyRelease, length = 624, time = 3099123, deviceid = 10, sourceid = 10, barrierid = 36, window = 0, root = 0, dx = 0, dy = 0, root_x = 0, root_y = 0, dt = 0, event_id = 0, flags = 0}, dga_event = {header = 255 '\377', type = ET_RawKeyRelease, length = 624, time = 3099123, subtype = 10, detail = 10, dx = 36, dy = 0, screen = 0, state = 0}, raw_event = {header = 255 '\377', type = ET_RawKeyRelease, length = 624, time = 3099123, deviceid = 10, sourceid = 10, detail = { button = 36, key = 36}, valuators = {mask = "\000\000\000\000", data = {0 }, data_raw = {0 }}, flags = 0}} dev = 0x25aedc0 master = 0x2372760 inProcessInputEvents = 1 __func__ = "mieqProcessInputEvents" #17 0x0000000000475c89 in ProcessInputEvents () at /usr/src/debug/x11-base/xorg-server-1.18.4/xorg-server-1.18.4/hw/xfree86/common/xf86Events.c:168 x = 39114548 y = 0 #18 0x0000000000435d0e in Dispatch () at /usr/src/debug/x11-base/xorg-server-1.18.4/xorg-server-1.18.4/dix/dispatch.c:386 clientReady = 0x254d730 result = client = 0x2cc1940 nready = 0 icheck = 0x829e90 start_tick = 50 #19 0x0000000000439e23 in dix_main (argc=11, argv=0x7ffd3d286b58, envp=) at /usr/src/debug/x11-base/xorg-server-1.18.4/xorg-server-1.18.4/dix/main.c:300 i = alwaysCheckForInput = {0, 1} #20 0x00007f9c6c12e670 in __libc_start_main (main=0x424090
, argc=11, argv=0x7ffd3d286b58, init=, fini=, rtld_fini=, stack_end=0x7ffd3d286b48) at ../csu/libc-start.c:289 result = unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, -4686692192296516609, 4341920, 0, 0, 0, 4688243555734504447, 4741550271631574015}, mask_was_saved = 0}}, priv = { pad = {0x0, 0x0, 0xb, 0x424090
}, data = {prev = 0x0, cleanup = 0x0, canceltype = 11}}} not_first_call = #21 0x00000000004240c9 in _start () at ../sysdeps/x86_64/start.S:118 No locals.