Thread 4 (Thread 0x7f88642d0700 (LWP 604)):
#0  0x00007f886954003f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
No symbol table info available.
#1  0x00007f88645a2ae9 in __run__ (arg=0x1a26e30) at sna_threads.c:70
        t = 0x1a26e30
        signals = {__val = {18446744067267099583, 18446744073709551615 <repeats 15 times>}}
#2  0x00007f886953a424 in start_thread () from /usr/lib/libpthread.so.0
No symbol table info available.
#3  0x00007f8869837cbd in clone () from /usr/lib/libc.so.6
No symbol table info available.

Thread 3 (Thread 0x7f8863acf700 (LWP 605)):
#0  0x00007f886954003f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
No symbol table info available.
#1  0x00007f88645a2ae9 in __run__ (arg=0x1a26ea0) at sna_threads.c:70
        t = 0x1a26ea0
        signals = {__val = {18446744067267099583, 18446744073709551615 <repeats 15 times>}}
#2  0x00007f886953a424 in start_thread () from /usr/lib/libpthread.so.0
No symbol table info available.
#3  0x00007f8869837cbd in clone () from /usr/lib/libc.so.6
No symbol table info available.

Thread 2 (Thread 0x7f88632ce700 (LWP 606)):
#0  0x00007f886954003f in pthread_cond_wait@@GLIBC_2.3.2 () from /usr/lib/libpthread.so.0
No symbol table info available.
#1  0x00007f88645a2ae9 in __run__ (arg=0x1a26f10) at sna_threads.c:70
        t = 0x1a26f10
        signals = {__val = {18446744067267099583, 18446744073709551615 <repeats 15 times>}}
#2  0x00007f886953a424 in start_thread () from /usr/lib/libpthread.so.0
No symbol table info available.
#3  0x00007f8869837cbd in clone () from /usr/lib/libc.so.6
No symbol table info available.

Thread 1 (Thread 0x7f886b7d6940 (LWP 569)):
#0  0x00007f8869830277 in ioctl () from /usr/lib/libc.so.6
No symbol table info available.
#1  0x00007f886a8ec888 in drmIoctl (fd=10, request=request@entry=3222823994, arg=arg@entry=0x7fffc86edf80) at xf86drm.c:172
        ret = <optimized out>
#2  0x00007f88646084f8 in sna_wait_vblank (sna=<optimized out>, pipe=<optimized out>, vbl=0x7fffc86edf80) at sna_present.c:104
No locals.
#3  sna_present_queue (info=0x2dd1380, last_msc=<optimized out>) at sna_present.c:301
        vbl = {request = {type = (_DRM_VBLANK_EVENT | unknown: 4), sequence = 165423, signal = 48042882}, reply = {type = (_DRM_VBLANK_EVENT | unknown: 4), sequence = 165423,
            tval_sec = 48042882, tval_usec = 0}}
        delta = -4233
#4  0x00007f8864608c6e in sna_present_vblank_handler (event=0x7fffc86ee000) at sna_present.c:397
No locals.
#5  0x00007f886456909c in sna_mode_wakeup (sna=sna@entry=0x7f886b6fd000) at sna_display.c:9076
        e = 0x7fffc86ee000
        buffer = "\001\000\000\000 \000\000\000\202\023\335\002\000\000\000\000\340\r\000\000\236\b\n\000/\206\002\000\000\000\000\000\002\000\000\000 \000\000\000\000\230\242\001\000\000\000\000\231\r\000\000\265v\016\000\247u\002\000\000\000\000\000\240\340n\310\377\177\000\000\060\363\034\002\000\000\000\000 \363\034\002", '\000' <repeats 13 times>, "\320ok\210\177\000\000\236\030Rd\210\177", '\000' <repeats 19 times>, "\340ok\210\177\000\000\a\000\000\000\000\000\022", '\000' <repeats 17 times>, "\016\000\000\000\000\000\004\000\003", '\000' <repeats 31 times>...
        len = 32
        i = 0
        ret = 39723573
#6  0x00007f8864569488 in wait_for_shadow (sna=0x7f886b6fd000, priv=0x1b8c080, flags=<optimized out>) at sna_display.c:1556
        pixmap = 0x1b8c000
        bo = <optimized out>
        tmp = <optimized out>
        flip_active = <optimized out>
        ret = true
#7  0x00007f886453f680 in sna_drawable_use_bo (drawable=0x1fc2850, flags=flags@entry=11, box=box@entry=0x7fffc86ee5c0, damage=damage@entry=0x7fffc86ee808) at sna_accel.c:3923
        hint = <optimized out>
        sna = <optimized out>
        region = {extents = {x1 = 0, y1 = 1766, x2 = 2880, y2 = 1800}, data = 0x0}
        dx = <optimized out>
        dy = <optimized out>
#8  0x00007f886455591d in sna_blt_composite (sna=sna@entry=0x7f886b6fd000, op=<optimized out>, op@entry=1, src=src@entry=0x2118200, dst=dst@entry=0x1fbcc90, x=<optimized out>,
    x@entry=0, y=<optimized out>, y@entry=0, dst_x=0, dst_y=1766, width=2880, height=34, flags=0, tmp=0x7fffc86ee7e0) at sna_blt.c:2885
        src_format = <optimized out>
        bo = <optimized out>
        tx = 0
        ty = 0
        dst_box = {x1 = 0, y1 = 1766, x2 = 2880, y2 = 1800}
        src_box = {x1 = 0, y1 = 0, x2 = 2880, y2 = 34}
        alpha_fixup = 0
        color = <optimized out>
        hint = 11
        ret = <optimized out>
#9  0x00007f88645e648f in try_blt (tmp=0x7fffc86ee7e0, flags=<optimized out>, height=34, width=2880, dst_y=1766, dst_x=0, msk_y=0, msk_x=0, src_y=0, src_x=0, dst=0x1fbcc90,
    mask=0x0, src=0x2118200, op=1 '\001', sna=0x7f886b6fd000) at gen7_render.c:2257
No locals.
#10 gen7_render_composite (sna=sna@entry=0x7f886b6fd000, op=op@entry=1 '\001', src=src@entry=0x2118200, mask=mask@entry=0x0, dst=dst@entry=0x1fbcc90, src_x=src_x@entry=0,
    src_y=0, msk_x=0, msk_y=0, dst_x=0, dst_y=1766, width=2880, height=34, flags=0, tmp=0x7fffc86ee7e0) at gen7_render.c:2492
        src_x = 0
        dst = 0x1fbcc90
        mask = 0x0
        width = 2880
        dst_x = 0
        msk_x = 0
        src_y = 0
        op = 1 '\001'
        sna = 0x7f886b6fd000
        tmp = 0x7fffc86ee7e0
        flags = 0
        dst_y = 1766
        msk_y = 0
        height = 34
        src = 0x2118200
#11 0x00007f8864559eb3 in sna_composite (op=<optimized out>, src=<optimized out>, mask=0x0, dst=0x1fbcc90, src_x=<optimized out>, src_y=<optimized out>, mask_x=0, mask_y=0,
    dst_x=0, dst_y=0, width=2880, height=34) at sna_composite.c:747
        tmp = {blt = 0x0, box = 0x0, boxes = 0x0, thread_boxes = 0x0, done = 0x0, damage = 0x0, op = 0, dst = {pixmap = 0x1b8c000, format = 537004168, bo = 0x0, x = 0, y = 0,
            width = 2880, height = 1800}, src = {bo = 0x0, transform = 0x0, width = 0, height = 0, pict_format = 0, 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 = 0}, gen2 = {pixel = 0}, gen3 = {type = 0, mode = 0, constants = 0}}}, mask = {bo = 0x0, transform = 0x0,
            width = 0, height = 0, pict_format = 0, 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 = 0},
              gen2 = {pixel = 0}, gen3 = {type = 0, mode = 0, constants = 0}}}, is_affine = 0, has_component_alpha = 0, need_magic_ca_pass = 0, rb_reversed = 0,
          floats_per_vertex = 0, floats_per_rect = 0, prim_emit = 0x0, emit_boxes = 0x0, redirect = {real_bo = 0x0, real_damage = 0x0, damage = 0x0, box = {x1 = 0, y1 = 0,
              x2 = 0, y2 = 0}}, u = {blt = {src_pixmap = 0x1fc88d0, sx = 0, sy = -1766, inplace = 0, overwrites = 0, bpp = 0, alu = 0, cmd = 0, br13 = 0, pitch = {0, 0},
              pixel = 0, bo = {0x0, 0x0}}, gen3 = {constants = {9.27664964e-38, 0, -4.99758573e+34, 0, 0, 0, 0, 0}, num_constants = 0}, gen4 = {wm_kernel = 33327312,
              ve_id = 0}, gen5 = {wm_kernel = -30512, ve_id = 508}, gen6 = {flags = 33327312}, gen7 = {flags = 33327312}, gen8 = {flags = 33327312}, gen9 = {flags = 33327312}},
          priv = 0x0}
        region = {extents = {x1 = 0, y1 = 1766, x2 = 2880, y2 = 1800}, data = 0x0}
        dx = <optimized out>
        dy = <optimized out>
#12 0x0000000000518601 in ?? ()
No symbol table info available.
#13 0x000000000050e017 in ?? ()
No symbol table info available.
#14 0x00000000004361bf in ?? ()
No symbol table info available.
#15 0x000000000043a1d3 in ?? ()
No symbol table info available.
#16 0x00007f8869770710 in __libc_start_main () from /usr/lib/libc.so.6
No symbol table info available.
#17 0x0000000000424589 in _start ()
No symbol table info available.