Darktable: Masks Manager crash

----start mask creation curve #1
sizes : 1345,000000 895,000000
malloc 2531
corners 3153
points 207 2401
self-intersect3 1143
transform 4476
inter 1764 1775
inter 1764 1777
inter 1762 1794
inter 1974 1980
inter 1973 1981
inter 1971 1983
inter 1971 1984
inter 1962 2011
inter 2269 2283
inter 2272 2283
inter 2267 2299
inter 2365 2371
inter 2363 2373
inter 2362 2377
inter 2366 2379
inter 2400 87
inter 152 161
inter 150 163
inter 150 164
inter 141 203
inter 418 429
inter 414 446
inter 416 447
inter 613 621
inter 595 626
inter 596 627
inter 851 863
inter 836 908
cpy corners 260
--total points 11806
--min-max 17
--alloc buff 20
--fill buff 441
--fill plain 2158
--falloff 1943
----total masks curve #1 18256
----start mask creation curve #1
sizes : 1345,000000 895,000000
malloc 2410
corners 2881
points 196 2401
self-intersect3 825
transform 133
inter 1764 1775
inter 1764 1777
inter 1762 1794
inter 1974 1980
inter 1973 1981
inter 1971 1983
inter 1971 1984
inter 1962 2011
inter 2269 2283
inter 2272 2283
inter 2267 2299
inter 2365 2371
inter 2363 2373
inter 2362 2377
inter 2366 2379
inter 2400 87
inter 152 161
inter 150 163
inter 150 164
inter 141 203
inter 418 429
inter 414 446
inter 416 447
inter 613 621
inter 595 626
inter 596 627
inter 851 863
inter 836 908
cpy corners 198
--total points 6939
--min-max 17
--alloc buff 19
--fill buff 3731
--fill plain 601
--falloff 1150
----total masks curve #1 12469
[New Thread 0x7fff5b6f2700 (LWP 15748)]
----start mask creation curve #1
sizes : 5202,000000 3464,000000
malloc 2354
corners 69
points 730 9061
self-intersect3 15791
transform 3130
inter 2321 2332
inter 2294 2393
inter 2295 2394
inter 2550 2565
inter 2562 2583
inter 3708 3719
inter 3706 3742
inter 3707 3743
inter 4888 4898
inter 4885 4900
inter 4885 4901
inter 4878 4965
inter 5005 5010
inter 5001 5012
inter 5000 5013
inter 4927 5132
inter 4940 5133
inter 4817 5184
inter 4816 5185
inter 4817 5185
inter 5974 5987
inter 5957 6036
inter 7094 7108
inter 7094 7122
inter 7107 7126
inter 7927 7930
inter 7929 7931
inter 907 920
inter 930 944
inter 946 950
inter 897 963
cpy corners 6039
--total points 28257
--min-max 83
--alloc buff 69
--fill buff 3886
--fill plain 19029
--falloff 22846
----total masks curve #1 74278
----start mask creation curve #1
sizes : 1345,000000 895,000000
malloc 2437
corners 101
points 232 2436
self-intersect3 809
transform 251
inter 692 697
inter 702 708
inter 686 714
inter 688 714
inter 758 762
inter 1052 1056
inter 1056 1061
inter 1350 1357
inter 1351 1358
inter 1349 1373
inter 1350 1374
inter 1352 1375
inter 1383 1388
inter 1368 1417
inter 1335 1430
inter 1334 1432
inter 1638 1642
inter 1633 1654
inter 1927 1938
inter 323 329
inter 321 340
cpy corners 3835
--total points 7812
--min-max 75
--alloc buff 73
--fill buff 367
--fill plain 488

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0x7fffe9edb700 (LWP 15716)]
0x00007ffff7a6e10f in _curve_falloff (bw=587, posy=264, posx=320,
    p1=<synthetic pointer>, p0=<synthetic pointer>, buffer=0x7fffe9ed7608)
    at /home/polarfox/Build/darktable/src/develop/masks/curve.c:1803
1803        if (y > 0) (*buffer)[(y-1)*bw+x] = fmaxf((*buffer)[(y-1)*bw+x],op);
(gdb) bt
#0  0x00007ffff7a6e10f in _curve_falloff (bw=587, posy=264, posx=320,
    p1=<synthetic pointer>, p0=<synthetic pointer>, buffer=0x7fffe9ed7608)
    at /home/polarfox/Build/darktable/src/develop/masks/curve.c:1803
#1  dt_curve_get_mask (posy=0x7fffe9ed75c8, posx=0x7fffe9ed75d8,
    height=0x7fffe9ed75e8, width=0x7fffe9ed75f8, buffer=0x7fffe9ed7608,
    form=0x102a2f0, module=0xeace70, piece=<optimized out>)
    at /home/polarfox/Build/darktable/src/develop/masks/curve.c:1965
#2  dt_masks_get_mask (module=module@entry=0xeace70,
    piece=piece@entry=0x7fffd800a7a0, form=0x102a2f0,
    buffer=buffer@entry=0x7fffe9ed7608, width=width@entry=0x7fffe9ed75f8,
    height=height@entry=0x7fffe9ed75e8, posx=0x7fffe9ed75d8,
    posy=0x7fffe9ed75c8)
    at /home/polarfox/Build/darktable/src/develop/masks/masks.c:212
#3  0x00007ffff7a6c8bf in dt_group_get_mask (posy=0x7fffe9ed7898,
    posx=0x7fffe9ed78a8, height=0x7fffe9ed78b8, width=0x7fffe9ed78c8,
    buffer=0x7fffe9ed78d8, piece=0x7fffd800a7a0, module=0xeace70,
    form=<optimized out>)
    at /home/polarfox/Build/darktable/src/develop/masks/group.c:213
#4  dt_masks_get_mask (module=module@entry=0xeace70,
    piece=piece@entry=0x7fffd800a7a0, form=<optimized out>,
    buffer=buffer@entry=0x7fffe9ed78d8, width=width@entry=0x7fffe9ed78c8,
---Type <return> to continue, or q <return> to quit---
    height=height@entry=0x7fffe9ed78b8, posx=0x7fffe9ed78a8,
    posy=0x7fffe9ed7898)
    at /home/polarfox/Build/darktable/src/develop/masks/masks.c:216
#5  0x00007ffff7a6c8bf in dt_group_get_mask (posy=0x7fffe9ed7b50,
    posx=0x7fffe9ed7b40, height=0x7fffe9ed7b70, width=0x7fffe9ed7b60,
    buffer=0x7fffe9ed7b80, piece=0x7fffd800a7a0, module=0xeace70,
    form=<optimized out>)
    at /home/polarfox/Build/darktable/src/develop/masks/group.c:213
#6  dt_masks_get_mask (module=module@entry=0xeace70,
    piece=piece@entry=0x7fffd800a7a0, form=form@entry=0x138b8e0,
    buffer=buffer@entry=0x7fffe9ed7b80, width=width@entry=0x7fffe9ed7b60,
    height=height@entry=0x7fffe9ed7b70, posx=posx@entry=0x7fffe9ed7b40,
    posy=posy@entry=0x7fffe9ed7b50)
    at /home/polarfox/Build/darktable/src/develop/masks/masks.c:216
#7  0x00007ffff7a6e410 in dt_masks_group_render (module=module@entry=0xeace70,
    piece=piece@entry=0x7fffd800a7a0, form=0x138b8e0,
    buffer=buffer@entry=0x7fffe9ed7c30, roi=roi@entry=0x7fffe9ed7ca0,
    scale=<optimized out>)
    at /home/polarfox/Build/darktable/src/develop/masks/group.c:325
#8  0x00007ffff7a5ad7e in dt_develop_blend_process (self=self@entry=0xeace70,
    piece=piece@entry=0x7fffd800a7a0, i=0x7fff50ce9010, o=0x7fff4f9e0010,
---Type <return> to continue, or q <return> to quit---
    roi_in=roi_in@entry=0x7fffe9ed7e00, roi_out=roi_out@entry=0x7fffe9ed7fe0)
    at /home/polarfox/Build/darktable/src/develop/blend.c:1707
#9  0x00007ffff7a4f8ad in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed8918,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed8910, out_bpp=0xb76d80,
    out_bpp@entry=0x7fffe9ed8900, roi_out=roi_out@entry=0x7fffe9ed7fe0,
    modules=0xa83060, pieces=0x1377c20, pos=pos@entry=32)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:1405
#10 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed8918,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed8910,
    out_bpp=out_bpp@entry=0x7fffe9ed8900,
    roi_out=roi_out@entry=0x7fffe9ed81c0, modules=0xaa0a80,
    pieces=0x7fffe4055b40, pos=pos@entry=33)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#11 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed8918,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed8910,
---Type <return> to continue, or q <return> to quit---
    out_bpp=out_bpp@entry=0x7fffe9ed8900,
    roi_out=roi_out@entry=0x7fffe9ed83a0, modules=0xf9de40, pieces=0x1083c20,
    pos=pos@entry=34)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#12 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed8918,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed8910,
    out_bpp=out_bpp@entry=0x7fffe9ed8900,
    roi_out=roi_out@entry=0x7fffe9ed8580, modules=0xf84580, pieces=0x107e0c0,
    pos=pos@entry=35)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#13 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed8918,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed8910,
    out_bpp=out_bpp@entry=0x7fffe9ed8900,
    roi_out=roi_out@entry=0x7fffe9ed8760, modules=0xaa7980,
    pieces=0x7fffe4055b80, pos=pos@entry=36)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#14 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
---Type <return> to continue, or q <return> to quit---
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed8918,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed8910,
    out_bpp=out_bpp@entry=0x7fffe9ed8900,
    roi_out=roi_out@entry=0x7fffe9ed8940, modules=0xaa72e0, pieces=0x107c900,
    pos=pos@entry=37)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#15 0x00007ffff7a4e272 in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9278,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9270, out_bpp=0xb76d80,
    out_bpp@entry=0x7fffe9ed9260, roi_out=roi_out@entry=0x7fffe9ed8b20,
    modules=0xb074e0, pieces=0xf61020, pos=pos@entry=38)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:726
#16 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9278,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9270,
    out_bpp=out_bpp@entry=0x7fffe9ed9260,
    roi_out=roi_out@entry=0x7fffe9ed8d00, modules=0xaa7a00,
    pieces=0x7fffe4055aa0, pos=pos@entry=39)
---Type <return> to continue, or q <return> to quit---
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#17 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9278,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9270,
    out_bpp=out_bpp@entry=0x7fffe9ed9260,
    roi_out=roi_out@entry=0x7fffe9ed8ee0, modules=0xaa0e80, pieces=0x100f8c0,
    pos=pos@entry=40)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#18 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9278,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9270,
    out_bpp=out_bpp@entry=0x7fffe9ed9260,
    roi_out=roi_out@entry=0x7fffe9ed90c0, modules=0xa92d20, pieces=0x107df00,
    pos=pos@entry=41)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#19 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9278,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9270,
---Type <return> to continue, or q <return> to quit---
    out_bpp=out_bpp@entry=0x7fffe9ed9260,
    roi_out=roi_out@entry=0x7fffe9ed92a0, modules=0xaa76e0, pieces=0xf84200,
    pos=pos@entry=42)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#20 0x00007ffff7a4e272 in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9f98,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9f90, out_bpp=0xb76d80,
    out_bpp@entry=0x7fffe9ed9f80, roi_out=roi_out@entry=0x7fffe9ed9480,
    modules=0xaa4440, pieces=0xaa4340, pos=pos@entry=43)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:726
#21 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9f98,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9f90,
    out_bpp=out_bpp@entry=0x7fffe9ed9f80,
    roi_out=roi_out@entry=0x7fffe9ed9660, modules=0xaa0cc0,
    pieces=0x7fffe4055b60, pos=pos@entry=44)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#22 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
---Type <return> to continue, or q <return> to quit---
    output=output@entry=0x7fffe9ed9f98,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9f90,
    out_bpp=out_bpp@entry=0x7fffe9ed9f80,
    roi_out=roi_out@entry=0x7fffe9ed9840, modules=0xaa7a40,
    pieces=0x7fffe4055b20, pos=pos@entry=45)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#23 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9f98,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9f90,
    out_bpp=out_bpp@entry=0x7fffe9ed9f80,
    roi_out=roi_out@entry=0x7fffe9ed9a20, modules=0xaa4960, pieces=0x136e980,
    pos=pos@entry=46)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#24 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9f98,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9f90,
    out_bpp=out_bpp@entry=0x7fffe9ed9f80,
    roi_out=roi_out@entry=0x7fffe9ed9c00, modules=0xa92e60, pieces=0x1082ec0,
    pos=pos@entry=47)
---Type <return> to continue, or q <return> to quit---
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#25 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9f98,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9f90,
    out_bpp=out_bpp@entry=0x7fffe9ed9f80,
    roi_out=roi_out@entry=0x7fffe9ed9de0, modules=0xaaa040, pieces=0x1083c00,
    pos=pos@entry=48)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#26 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9ed9f98,
    cl_mem_output=cl_mem_output@entry=0x7fffe9ed9f90,
    out_bpp=out_bpp@entry=0x7fffe9ed9f80,
    roi_out=roi_out@entry=0x7fffe9ed9fc0, modules=0xa82e80, pieces=0x136de80,
    pos=pos@entry=49)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#27 0x00007ffff7a4e272 in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9eda718,
    cl_mem_output=cl_mem_output@entry=0x7fffe9eda710, out_bpp=0xb76d80,
---Type <return> to continue, or q <return> to quit---
    out_bpp@entry=0x7fffe9eda700, roi_out=roi_out@entry=0x7fffe9eda1a0,
    modules=0xaa4280, pieces=0x7fffe4055a80, pos=pos@entry=50)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:726
#28 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9eda718,
    cl_mem_output=cl_mem_output@entry=0x7fffe9eda710,
    out_bpp=out_bpp@entry=0x7fffe9eda700,
    roi_out=roi_out@entry=0x7fffe9eda380, modules=0xa8bda0, pieces=0xa4fcc0,
    pos=pos@entry=51)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#29 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9eda718,
    cl_mem_output=cl_mem_output@entry=0x7fffe9eda710,
    out_bpp=out_bpp@entry=0x7fffe9eda700,
    roi_out=roi_out@entry=0x7fffe9eda560, modules=0xaa42c0, pieces=0x136de00,
    pos=pos@entry=52)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#30 0x00007ffff7a4dcee in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
---Type <return> to continue, or q <return> to quit---
    output=output@entry=0x7fffe9eda718,
    cl_mem_output=cl_mem_output@entry=0x7fffe9eda710,
    out_bpp=out_bpp@entry=0x7fffe9eda700,
    roi_out=roi_out@entry=0x7fffe9eda740, modules=0xaaa520, pieces=0xa8f0a0,
    pos=pos@entry=53)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:600
#31 0x00007ffff7a4e272 in dt_dev_pixelpipe_process_rec (
    pipe=pipe@entry=0xb76cb0, dev=dev@entry=0xb765a0,
    output=output@entry=0x7fffe9eda8b0,
    cl_mem_output=cl_mem_output@entry=0x7fffe9eda8a0, out_bpp=0xb76d80,
    out_bpp@entry=0x7fffe9eda89c, roi_out=roi_out@entry=0x7fffe9eda8c0,
    modules=modules@entry=0xa8bd40, pieces=pieces@entry=0x7fffe4055c80,
    pos=pos@entry=54)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:726
#32 0x00007ffff7a5194b in dt_dev_pixelpipe_process_rec_and_backcopy (pos=54,
    pieces=0x7fffe4055c80, modules=0xa8bd40, roi_out=0x7fffe9eda8c0,
    out_bpp=0x7fffe9eda89c, cl_mem_output=0x7fffe9eda8a0,
    output=0x7fffe9eda8b0, dev=0xb765a0, pipe=0xb76cb0)
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:1913
#33 dt_dev_pixelpipe_process (pipe=0xb76cb0, dev=dev@entry=0xb765a0,
    x=11058496, x@entry=0, y=y@entry=0, width=1345, height=895, scale=1)
---Type <return> to continue, or q <return> to quit---
    at /home/polarfox/Build/darktable/src/develop/pixelpipe_hb.c:1998
#34 0x00007ffff7a3fe4d in dt_dev_process_preview_job (dev=0xb765a0)
    at /home/polarfox/Build/darktable/src/develop/develop.c:227
#35 0x00007ffff7a3b480 in dt_dev_process_preview_job_run (job=<optimized out>)
    at /home/polarfox/Build/darktable/src/control/jobs/develop_jobs.c:25
#36 0x00007ffff7a345d4 in dt_control_run_job_res (s=s@entry=0x6924e0,
    res=res@entry=2)
    at /home/polarfox/Build/darktable/src/control/control.c:972
#37 0x00007ffff7a34f9d in dt_control_work_res (ptr=0x6924e0)
    at /home/polarfox/Build/darktable/src/control/control.c:1211
#38 0x00007ffff7768e9a in start_thread (arg=0x7fffe9edb700)
    at pthread_create.c:308
#39 0x00007ffff7495ccd in clone ()
    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#40 0x0000000000000000 in ?? ()
---- END BT ----