Starting program: /usr/libexec/Xorg -core :0
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
[tcsetpgrp failed in terminal_inferior: Operation not permitted]
[New Thread 0x7fe9e7fce700 (LWP 1212)]

Program received signal SIGABRT, Aborted.
#0  0x00007fe9ec1c4508 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
        resultvar = 0
        pid = 1206
        selftid = 1206
#1  0x00007fe9ec1c591a in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x1, sa_sigaction = 0x1}, sa_mask = {__val = {140735504703864, 140735504705600, 
              140642696850432, 171515904, 0, 0, 0, 0, 0, 0, 0, 0, 140642665383952, 8482656, 140735504703648, 0}}, 
          sa_flags = -300144448, sa_restorer = 0x835c70}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x000000000058831e in OsAbort () at utils.c:1342
No locals.
#3  0x000000000047669c in ddxGiveUp (error=error@entry=EXIT_ERR_ABORT) at xf86Init.c:1065
        i = <optimized out>
#4  0x000000000047674a in AbortDDX (error=error@entry=EXIT_ERR_ABORT) at xf86Init.c:1109
        i = <optimized out>
#5  0x000000000058d842 in AbortServer () at log.c:784
No locals.
#6  0x000000000058e4c8 in FatalError (f=f@entry=0x5b6c90 "Caught signal %d (%s). Server aborting\n") at log.c:925
        args = {{gp_offset = 24, fp_offset = 48, overflow_arg_area = 0x7fff89c3e260, reg_save_area = 0x7fff89c3e190}}
        args2 = {{gp_offset = 8, fp_offset = 48, overflow_arg_area = 0x7fff89c3e260, reg_save_area = 0x7fff89c3e190}}
        beenhere = 1
#7  0x0000000000585e9e in OsSigHandler (signo=11, sip=<optimized out>, unused=<optimized out>) at osinit.c:147
        unused = <optimized out>
        sip = <optimized out>
        signo = 11
#8  <signal handler called>
No locals.
#9  0x0000000000000000 in ?? ()
No symbol table info available.
#10 0x00007fe9e8416594 in kgem_retire (kgem=kgem@entry=0x7fe9ee129000) at kgem.c:2789
        retired = <optimized out>
#11 0x00007fe9e8418022 in kgem_cleanup_cache (kgem=0x7fe9ee129000) at kgem.c:4023
        n = <optimized out>
#12 0x00007fe9e8418178 in __kgem_bo_map__cpu (kgem=kgem@entry=0x7fe9ee129000, bo=0x8518b0) at kgem.c:536
        mmap_arg = {handle = 3, pad = 0, offset = 0, size = 262144, addr_ptr = 140735504705968, flags = 140642698301440}
        err = <optimized out>
#13 0x00007fe9e84181a7 in kgem_bo_map__cpu (kgem=kgem@entry=0x7fe9ee129000, bo=<optimized out>) at kgem.c:6347
No locals.
#14 0x00007fe9e841be1b in kgem_bo_map__cpu (bo=<optimized out>, kgem=0x7fe9ee129000) at kgem.c:1496
No locals.
#15 kgem_new_batch (kgem=kgem@entry=0x7fe9ee129000) at kgem.c:1471
        last = 0x0
        flags = <optimized out>
#16 0x00007fe9e841c748 in kgem_init (kgem=kgem@entry=0x7fe9ee129000, fd=<optimized out>, dev=<optimized out>, gen=gen@entry=48)
    at kgem.c:1631
        aperture = {aper_size = 140638704107521, aper_available_size = 4226368}
        totalram = <optimized out>
        half_gpu_max = <optimized out>
        i = 2
        j = <optimized out>
#17 0x00007fe9e8463b39 in sna_pre_init (scrn=0x850940, probe=<optimized out>) at sna_driver.c:651
        sna = <optimized out>
        buf = "x86-64, sse2, sse3, ssse3, sse4.1, sse4.2, avx\000\000\\\000\000\000\000\000\000\000\360\016S\355\351\177\000\000\340\244\034\356\351\177\000\000\370\353É\377\177\000\000\364\353É\377\177\000\000\240\004S\355\351\177\000\000\360\016S\355\351\177\000\000\030\020S\355\351\177\000\000@\rS\355\351\177\000\000\004\257\373\355\351\177\000\000n0\230\252\000\000\000\000\\\b\000\000\000\000\000\000\000p\034\356\351\177\000\000\bM\031\354\351\177\000\000\240\035\032\354\351\177\000\000\062\267\373\355\351\177\000\000\\\b\000\000\000\000\000\000\240\035\032\354\351\177\000\000\000p\034\356\351\177\000\000x\354"...
        defaultWeight = {red = 0, green = 0, blue = 0}
        pEnt = 0x851280
        zeros = {red = 0, green = 0, blue = 0}
        fd = 8
#18 0x000000000047842b in InitOutput (pScreenInfo=pScreenInfo@entry=0x81e660 <screenInfo>, argc=argc@entry=3, 
    argv=argv@entry=0x7fff89c3f158) at xf86Init.c:582
        i = 0
        j = <optimized out>
        k = <optimized out>
        scr_index = <optimized out>
        modulelist = <optimized out>
        optionlist = 0x83fb40
        screenpix24 = <optimized out>
        pix24 = <optimized out>
        pix24From = X_DEFAULT
        pix24Fail = 0
        autoconfig = <optimized out>
        sigio_blocked = 0
        want_hw_access = <optimized out>
        configured_device = <optimized out>
#19 0x000000000043b33a in dix_main (argc=3, argv=0x7fff89c3f158, envp=<optimized out>) at main.c:202
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#20 0x00007fe9ec1b1770 in __libc_start_main (main=0x426c10 <main>, argc=3, argv=0x7fff89c3f158, init=<optimized out>, 
    fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff89c3f148) at libc-start.c:289
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 2248669616754517678, 4353056, 140735504707920, 0, 0, -2248437301424298322, 
                -2240758938095196498}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x591f00 <__libc_csu_init>, 0x7fff89c3f158}, 
            data = {prev = 0x0, cleanup = 0x0, canceltype = 5840640}}}
        not_first_call = <optimized out>
#21 0x0000000000426c49 in _start () at ../sysdeps/x86_64/start.S:118
No locals.