#0  x86_64_fallback_frame_state (context=0x7ffd65b8c1b0, context=0x7ffd65b8c1b0, fs=0x7ffd65b8c2a0) at ./md-unwind-support.h:58
        pc = 0x23f2 <error: Cannot access memory at address 0x23f2>
        sc = <optimized out>
        new_cfa = <optimized out>
#1  uw_frame_state_for (context=context@entry=0x7ffd65b8c1b0, fs=fs@entry=0x7ffd65b8c2a0) at ../../../src/libgcc/unwind-dw2.c:1249
        fde = 0x0
        cie = <optimized out>
        aug = <optimized out>
        insn = <optimized out>
        end = <optimized out>
#2  0x00007fe56794c618 in _Unwind_Backtrace (trace=0x7fe56900d1a0 <backtrace_helper>, trace_argument=0x7ffd65b8c460) at ../../../src/libgcc/unwind.inc:290
        fs = {regs = {reg = {{loc = {reg = 0, offset = 0, exp = 0x0}, how = REG_UNSAVED} <repeats 18 times>}, prev = 0x0, cfa_offset = 0, cfa_reg = 0, cfa_exp = 0x0, cfa_how = CFA_UNSET}, pc = 0x0, personality = 0x0, data_align = 0, code_align = 0, retaddr_column = 0, fde_encoding = 0 '\000', lsda_encoding = 0 '\000', saw_z = 0 '\000', signal_frame = 0 '\000', eh_ptr = 0x0}
        context = {reg = {0x7ffd65b8c7d0, 0x7ffd65b8c7c8, 0x7ffd65b8c7d8, 0x7ffd65b8c7c0, 0x7ffd65b8c7b0, 0x7ffd65b8c7a8, 0x7ffd65b8c7b8, 0x7ffd65b8c7e0, 0x7ffd65b8c768, 0x7ffd65b8c770, 0x7ffd65b8c778, 0x7ffd65b8c780, 0x7ffd65b8c788, 0x7ffd65b8c790, 0x7ffd65b8c798, 0x7ffd65b8c7a0, 0x7ffd65b8c7e8, 0x0}, cfa = 0x7ffd65b8ccd8, ra = 0x23f2, lsda = 0x0, bases = {tbase = 0x0, dbase = 0x0, func = 0x7fe568f2c3cf}, flags = 13835058055282163712, version = 0, args_size = 0, by_value = '\000' <repeats 17 times>}
        code = <optimized out>
#3  0x00007fe56900d316 in __GI___backtrace (array=array@entry=0x7ffd65b8c4a0, size=size@entry=64) at ../sysdeps/x86_64/backtrace.c:109
        arg = {array = 0x7ffd65b8c4a0, cfa = 140726310061888, cnt = 3, size = 64}
        once = 2
#4  0x00005611f706462e in xorg_backtrace () at ../../os/backtrace.c:125
        array = 0xb
        mod = <optimized out>
        size = <optimized out>
        i = <optimized out>
        info = {dli_fname = 0x20 <error: Cannot access memory at address 0x20>, dli_fbase = 0x0, dli_sname = 0x3000000010 <error: Cannot access memory at address 0x3000000010>, dli_saddr = 0x7ffd65b8c7b0}
#5  0x00005611f7068999 in OsSigHandler (signo=11, sip=0x7ffd65b8c870, unused=<optimized out>) at ../../os/osinit.c:129
        unused = <optimized out>
        sip = 0x7ffd65b8c870
        signo = 11
#6  <signal handler called>
No locals.
#7  0x00000000000023f2 in ?? ()
No symbol table info available.
#8  0x00007fe565353b73 in copy_overlap (sna=sna@entry=0x7fe56af26000, alu=<optimized out>, draw=draw@entry=0x7ffd65b8d380, bo=bo@entry=0x5611f8c5eb60, src_dx=src_dx@entry=0, src_dy=<optimized out>, dst_dx=0, dst_dy=0, box=0x7ffd65b8d360, n=1, extents=0x7ffd65b8d0e0) at ../../../src/sna/sna_render.c:2158
        screen = <optimized out>
        tmp = <optimized out>
        ret = false
#9  0x00007fe565358362 in sna_render_copy_boxes__overlap (sna=sna@entry=0x7fe56af26000, alu=<optimized out>, draw=draw@entry=0x7ffd65b8d380, bo=bo@entry=0x5611f8c5eb60, src_dx=src_dx@entry=0, src_dy=src_dy@entry=0, dst_dx=0, dst_dy=0, box=0x7ffd65b8d360, n=1, extents=0x7ffd65b8d0e0) at ../../../src/sna/sna_render.c:2209
        ret = false
        overlap = {extents = {x1 = 11202, y1 = 0, x2 = 9297, y2 = 8}, data = 0xa3fbc}
        non_overlap = {extents = {x1 = 26, y1 = 0, x2 = 0, y2 = 0}, data = 0x7ffd65b8d150}
        region = {extents = {x1 = 1, y1 = 0, x2 = 0, y2 = 0}, data = 0x0}
        stack_boxes = {{x1 = -912, y1 = -1860, x2 = 22033, y2 = 0}, {x1 = 19337, y1 = 26879, x2 = 32741, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = -13780, y1 = -2298, x2 = 22033, y2 = 0}, {x1 = 16, y1 = 0, x2 = 48, y2 = 0}, {x1 = -12560, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = -12768, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 7680, y1 = 10004, x2 = 17736, y2 = 9909}, {x1 = -12272, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 7680, y1 = 10004, x2 = 17736, y2 = 9909}, {x1 = 26, y1 = 0, x2 = 0, y2 = 0}, {x1 = -11840, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 1, y1 = 0, x2 = 0, y2 = 0}, {x1 = 91, y1 = 0, x2 = 0, y2 = 0}, {x1 = 4, y1 = 0, x2 = 0, y2 = 0}, {x1 = -6064, y1 = -1860, x2 = 22033, y2 = 0}, {x1 = -21856, y1 = -1936, x2 = 22033, y2 = 0}, {x1 = 19337, y1 = 26879, x2 = 32741, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = -13780, y1 = -2298, x2 = 22033, y2 = 0}, {x1 = 895, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 8099, y1 = 0, x2 = -1, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = -21856, y1 = -1936, x2 = 22033, y2 = 0}, {x1 = 19337, y1 = 26879, x2 = 32741, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = -13780, y1 = -2298, x2 = 22033, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = 16, y1 = 0, x2 = 48, y2 = 0}, {x1 = -12256, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = -12464, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 7680, y1 = 10004, x2 = 17736, y2 = 9909}, {x1 = -2400, y1 = 27387, x2 = 32741, y2 = 0}, {x1 = 32, y1 = 0, x2 = 0, y2 = 0}, {x1 = 55, y1 = 0, x2 = 0, y2 = 0}, {x1 = -11536, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 1, y1 = 0, x2 = 0, y2 = 0}, {x1 = 1056, y1 = 0, x2 = 0, y2 = 0}, {x1 = 16, y1 = 0, x2 = 48, y2 = 0}, {x1 = -12176, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = -12384, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 7680, y1 = 10004, x2 = 17736, y2 = 9909}, {x1 = 32144, y1 = -1935, x2 = 22033, y2 = 0}, {x1 = 32, y1 = 0, x2 = 26, y2 = 0}, {x1 = 55, y1 = 0, x2 = 0, y2 = 0}, {x1 = -11456, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 1, y1 = 0, x2 = 0, y2 = 0}, {x1 = 0, y1 = 0, x2 = 0, y2 = 0}, {x1 = -12320, y1 = 26040, x2 = 32765, y2 = 0}, {x1 = 31776, y1 = -1938, x2 = 22033, y2 = 0}}
        boxes = <optimized out>
        num_boxes = <optimized out>
        i = <optimized out>
#10 0x00007fe5653c31af in gen7_render_copy_boxes (sna=0x7fe56af26000, alu=<optimized out>, src=0x7ffd65b8d380, src_bo=0x5611f8c5eb60, src_dx=<optimized out>, src_dy=<optimized out>, dst=0x5611f853f4c0, dst_bo=0x5611f8c5eb60, dst_dx=0, dst_dy=0, box=0x7ffd65b8d360, n=1, flags=17) at ../../../src/sna/gen7_render.c:3005
        tmp = {blt = 0x7fe56afbf6a0, box = 0x20, boxes = 0x3000000010, thread_boxes = 0x7ffd65b8d1f0, done = 0x7ffd65b8d120, damage = 0x26b5454827141e00, op = 1706611424, dst = {pixmap = 0x165b8d150, format = 55, bo = 0x5611f853cb80, x = 4096, y = 0, width = 0, height = 0}, src = {bo = 0x1, transform = 0x7ffd65b8d190, width = 31403, height = 63220, pict_format = 22033, card_format = 0, filter = 0, repeat = 0, is_affine = 0, is_solid = 0, is_linear = 0, is_opaque = 0, alpha_fixup = 0, rb_reversed = 0, offset = {0, 0}, scale = {0, 0}, embedded_transform = {matrix = {{0, 0, 0}, {0, 0, 0}, {0, 0, 0}}}, u = {linear = {dx = 0, dy = 0, offset = 1.09098512e+23}, gen2 = {pixel = 0}, gen3 = {type = 0, mode = 0, constants = 1706611184}}}, mask = {bo = 0x7ffd65bf1c75, transform = 0x7ffd65b8d230, width = 0, height = 0, pict_format = 0, card_format = 0, filter = 1, repeat = 4096, is_affine = 0, is_solid = 0, is_linear = 0, is_opaque = 0, alpha_fixup = 0, rb_reversed = 0, offset = {0, -1367}, scale = {4.5879913e-41, 0}, embedded_transform = {matrix = {{0, -150549167, 22033}, {-128726144, 22033, 4096}, {0, 0, 0}}}, u = {linear = {dx = 0, dy = 0, offset = 1.09098512e+23}, gen2 = {pixel = 0}, gen3 = {type = 0, mode = 0, constants = 1706611184}}}, is_affine = 1, has_component_alpha = 0, need_magic_ca_pass = 0, rb_reversed = 0, floats_per_vertex = 0, floats_per_rect = 0, prim_emit = 0x7ffd65b8d240, emit_boxes = 0x0, redirect = {real_bo = 0x0, real_damage = 0x5611f8338140, damage = 0x33, box = {x1 = 24, y1 = 0, x2 = 0, y2 = 0}}, u = {blt = {src_pixmap = 0x0, sx = 0, sy = 0, inplace = 0, overwrites = 0, bpp = 0, alu = 0, cmd = 0, br13 = 0, pitch = {4143890334, 22033}, pixel = 1706611344, bo = {0x7ffd65b8d360, 0x7ffd65b8d2b0}}, gen3 = {constants = {0, 0, 0, 0, 0, 0, -2.58345676e+33, 3.08748091e-41}, num_constants = 1706611344}, gen4 = {wm_kernel = 0, ve_id = 0}, gen5 = {wm_kernel = 0, ve_id = 0}, gen6 = {flags = 0}, gen7 = {flags = 0}, gen8 = {flags = 0}}, priv = 0x7ffd65b8d2b0}
        extents = {x1 = 1270, y1 = 0, x2 = 1780, y2 = 256}
#11 0x00007fe5653d245f in __sna_dri2_copy_region (sna=0x7fe56af26000, draw=<optimized out>, region=<optimized out>, src=<optimized out>, dst=<optimized out>, flags=2) at ../../../src/sna/sna_dri2.c:1319
        scratch = {type = 96 '`', class = 127 '\177', depth = 24 '\030', bitsPerPixel = 32 ' ', id = 22033, x = 0, y = 0, width = 1869, height = 1056, pScreen = 0x5611f8bb4360, serialNumber = 2789211719765852160}
        src_draw = <optimized out>
        dst_draw = <optimized out>
        clip = {extents = {x1 = 1270, y1 = 0, x2 = 1780, y2 = 256}, data = 0x0}
        bo = 0x0
        src_bo = <optimized out>
        dst_bo = 0x5611f8c5eb60
        boxes = 0x7ffd65b8d360
        dx = 0
        dy = 0
        sx = <optimized out>
        sy = <optimized out>
        hint = 17
        n = <optimized out>
#12 0x00005611f7035bcc in dri2_copy_region (pDraw=pDraw@entry=0x5611f8c52dd0, pRegion=pRegion@entry=0x5611f8bb4360, pDest=0x5611f883d8b0, pSrc=0x5611f8b44fc0) at ../../../../hw/xfree86/dri2/dri2.c:871
        pPriv = 0x5611f8bd19a0
#13 0x00005611f70362ee in DRI2CopyRegion (pDraw=0x5611f8c52dd0, pRegion=0x5611f8bb4360, dest=0, src=1) at ../../../../hw/xfree86/dri2/dri2.c:912
        pPriv = <optimized out>
        pDestBuffer = <optimized out>
        pSrcBuffer = <optimized out>
        i = <optimized out>
#14 0x00005611f70386c3 in ProcDRI2CopyRegion (client=0x5611f89c7f60) at ../../../../hw/xfree86/dri2/dri2ext.c:332
        rep = {type = 96 '`', pad1 = 127 '\177', sequenceNumber = 63644, length = 22033, pad2 = 4143681361, pad3 = 22033, pad4 = 4171005792, pad5 = 22033, pad6 = 0, pad7 = 0}
        status = <optimized out>
        stuff = 0x5611f853cb90
        pDrawable = 0x5611f8c52dd0
        pRegion = 0x5611f8bb4360
#15 ProcDRI2Dispatch (client=0x5611f89c7f60) at ../../../../hw/xfree86/dri2/dri2ext.c:609
        stuff = 0x5611f853cb90
#16 0x00005611f6f0818f in Dispatch () at ../../dix/dispatch.c:432
        clientReady = 0x5611f871def0
        result = <optimized out>
        client = 0x5611f89c7f60
        nready = 0
        icheck = 0x5611f7300450 <checkForInput>
        start_tick = 750
#17 0x00005611f6f0c34b in dix_main (argc=11, argv=0x7ffd65b8d6a8, envp=<optimized out>) at ../../dix/main.c:298
        i = <optimized out>
        alwaysCheckForInput = {0, 1}
#18 0x00007fe568f178b0 in __libc_start_main (main=0x5611f6ef6690 <main>, argc=11, argv=0x7ffd65b8d6a8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffd65b8d698) at libc-start.c:291
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {0, 4820904202962353333, 94635157317280, 140726310065824, 0, 0, 1242553329756814517, 1229048635217558709}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x5611f7075860 <__libc_csu_init>, 0x7ffd65b8d6a8}, data = {prev = 0x0, cleanup = 0x0, canceltype = -150513568}}}
        not_first_call = <optimized out>
#19 0x00005611f6ef66c9 in _start ()
No symbol table info available.