Thread 1 "X" received signal SIGSEGV, Segmentation fault.
0x00007f19d6d487ca in isl_format_supports_ccs_e (devinfo=devinfo@entry=0x2286ab8, format=ISL_FORMAT_UNSUPPORTED)
    at isl/isl_format.c:558
558	isl/isl_format.c: No such file or directory.

(gdb) bt
#0  0x00007f19d6d487ca in isl_format_supports_ccs_e (devinfo=devinfo@entry=0x2286ab8, format=ISL_FORMAT_UNSUPPORTED)
    at isl/isl_format.c:558
#1  0x00007f19d6c14b5c in modifier_is_supported (devinfo=devinfo@entry=0x2286ab8, fmt=fmt@entry=0x7f19d6f48458 <intel_image_formats+216>, dri_format=4112, dri_format@entry=0, modifier=modifier@entry=72057594037927940)
    at intel_screen.c:345
#2  0x00007f19d6c14cda in intel_query_dma_buf_modifiers (_screen=<optimized out>, fourcc=<optimized out>, max=0, modifiers=0x0, external_only=0x0, count=count@entry=0x7ffd17dbfc94)
    at intel_screen.c:1304
#3  0x00007f19d4e7b050 in dri2_query_dma_buf_modifiers (drv=<optimized out>, disp=<optimized out>, format=<optimized out>, max=<optimized out>, modifiers=<optimized out>, external_only=<optimized out>, count=0x7ffd17dbfc94)
    at drivers/dri2/egl_dri2.c:2394
#4  0x00007f19d4e6ff67 in eglQueryDmaBufModifiersEXT (dpy=0x23a76f0, format=808665688, max_modifiers=0, modifiers=0x0, external_only=0x0, num_modifiers=0x7ffd17dbfc94)
    at main/eglapi.c:2519
#5  0x00007f19d7c90396 in glamor_get_modifiers (screen=<optimized out>, format=808665688, num_modifiers=0x7ffd17dbfd34, modifiers=0x7ffd17dbfd40)
    at ../../../glamor/glamor_egl.c:647
#6  0x0000000000564416 in cache_formats_and_modifiers (screen=<optimized out>)
    at dri3_screen.c:196
#7  dri3_get_supported_modifiers (screen=<optimized out>, drawable=0x2578e00, depth=<optimized out>, bpp=<optimized out>, num_intersect_modifiers=num_intersect_modifiers@entry=0x7ffd17dbfda0, intersect_modifiers=intersect_modifiers@entry=0x7ffd17dbfdb0, num_screen_modifiers=0x7ffd17dbfda4, screen_modifiers=0x7ffd17dbfdb8)
    at dri3_screen.c:234
#8  0x0000000000563700 in proc_dri3_get_supported_modifiers (client=0x27fdaf0)
    at dri3_request.c:373
#9  0x000000000043e6cb in Dispatch () at dispatch.c:478
#10 0x00000000004427b8 in dix_main (argc=11, argv=0x7ffd17dbffa8, envp=<optimized out>)
    at main.c:276

(gdb) disassemble 
Dump of assembler code for function isl_format_supports_ccs_e:
   0x00007f19d6d487b0 <+0>:	mov    %esi,%eax
   0x00007f19d6d487b2 <+2>:	lea    0x23b307(%rip),%rcx        # 0x7f19d6f83ac0 <format_info>
   0x00007f19d6d487b9 <+9>:	cmp    $0xd3,%esi
   0x00007f19d6d487bf <+15>:	lea    (%rax,%rax,2),%rdx
   0x00007f19d6d487c3 <+19>:	lea    (%rax,%rdx,4),%rdx
   0x00007f19d6d487c7 <+23>:	sete   %al
=> 0x00007f19d6d487ca <+26>:	cmp    %al,(%rcx,%rdx,1)
   0x00007f19d6d487cd <+29>:	jbe    0x7f19d6d487d8 <isl_format_supports_ccs_e+40>
   0x00007f19d6d487cf <+31>:	jmpq   0x7f19d6d48350 <isl_format_supports_ccs_e>
End of assembler dump.
(gdb) info registers al rcx rdx
al             0x0	0
rcx            0x7f19d6f83ac0	139748957502144
rdx            0xcfff3	851955

(gdb) info locals
No locals.
(gdb) print *devinfo
$7 = {gen = 8, gt = 3, is_g4x = false, is_ivybridge = false, 
  is_baytrail = false, is_haswell = false, is_broadwell = true, 
  is_cherryview = false, is_skylake = false, is_broxton = false, 
  is_kabylake = false, is_geminilake = false, is_coffeelake = false, 
  is_cannonlake = false, has_hiz_and_separate_stencil = true, 
  must_use_separate_stencil = true, has_sample_with_hiz = false, 
  has_llc = true, has_pln = true, has_64bit_types = true, 
  has_integer_dword_mul = true, has_compr4 = false, 
  has_surface_tile_offset = true, supports_simd16_3src = true, 
  has_resource_streamer = true, has_negative_rhw_bug = false, 
  needs_unlit_centroid_workaround = false, num_slices = 2, num_subslices = {3, 
    3, 0, 0, 0, 0, 0, 0}, num_eu_per_subslice = 8, num_thread_per_eu = 7, 
  slice_masks = 3 '\003', subslice_masks = "\a\a\000\000\000", 
  eu_masks = "\377\377\377\377\377\377", '\000' <repeats 89 times>, 
  subslice_slice_stride = 1, eu_slice_stride = 3, eu_subslice_stride = 1, 
  l3_banks = 8, max_vs_threads = 504, max_tcs_threads = 504, 
  max_tes_threads = 504, max_gs_threads = 504, max_wm_threads = 384, 
  max_cs_threads = 56, urb = {size = 384, min_entries = {64, 0, 34, 0}, 
    max_entries = {2560, 504, 1536, 960}}, timestamp_frequency = 12500000}

(gdb) up
#1  0x00007f19d6c14b5c in modifier_is_supported (devinfo=devinfo@entry=0x2286ab8, fmt=fmt@entry=0x7f19d6f48458 <intel_image_formats+216>, dri_format=4112, dri_format@entry=0, modifier=modifier@entry=72057594037927940)
    at intel_screen.c:345
345	intel_screen.c: No such file or directory.
(gdb) info locals
format = <optimized out>
modinfo = <optimized out>
i = <optimized out>

(gdb) up
#2  0x00007f19d6c14cda in intel_query_dma_buf_modifiers (_screen=<optimized out>, fourcc=<optimized out>, max=0, modifiers=0x0, external_only=0x0, count=count@entry=0x7ffd17dbfc94)
    at intel_screen.c:1304
1304	in intel_screen.c
(gdb) info locals
screen = 0x2286ab0
num_mods = 3
i = <optimized out>