#0  0x00000000045c8227 in BM_vert_pair_share_face_by_len (v_a=0x0, v_b=0x62d000654678, r_l_a=0x7fffffffbcb0, r_l_b=0x7fffffffbcd0, allow_adjacent=true)
    at /home/dfelinto/src/blender/blender/source/blender/bmesh/intern/bmesh_query.c:267
#1  0x000000000481ca0c in connect_smallest_face (bm=0x61a0000ea688, v_a=0x0, v_b=0x62d000654678, r_f_new=0x7fffffffbe60)
    at /home/dfelinto/src/blender/blender/source/blender/bmesh/operators/bmo_subdivide.c:143
#2  0x0000000004825d12 in quad_4edge_subdivide (bm=0x61a0000ea688, UNUSED_face=0x62d000ba4410, verts=0x6070000488d8, params=0x7fffffffc640)
    at /home/dfelinto/src/blender/blender/source/blender/bmesh/operators/bmo_subdivide.c:740
#3  0x0000000004842e51 in bmo_subdivide_edges_exec (bm=0x61a0000ea688, op=0x7fffffffc7b0) at /home/dfelinto/src/blender/blender/source/blender/bmesh/operators/bmo_subdivide.c:1299
#4  0x0000000004553c6a in BMO_op_exec (bm=0x61a0000ea688, op=0x7fffffffc7b0) at /home/dfelinto/src/blender/blender/source/blender/bmesh/intern/bmesh_operators.c:221
#5  0x000000000484572e in BM_mesh_esubdivide
    (bm=0x61a0000ea688, edge_hflag=1 '\001', smooth=0, smooth_falloff=4, use_smooth_even=false, fractal=0, along_normal=0, numcuts=1, seltype=1, cornertype=3, use_single_edge=0, use_grid_fill=1, use_only_quads=0, seed=0) at /home/dfelinto/src/blender/blender/source/blender/bmesh/operators/bmo_subdivide.c:1372
#6  0x000000000654772d in edbm_subdivide_exec (C=0x60c000000108, op=0x60f000024858) at /home/dfelinto/src/blender/blender/source/blender/editors/mesh/editmesh_tools.c:120
#7  0x000000000406b095 in wm_operator_invoke (C=0x60c000000108, ot=0x611000057348, event=0x60c00001bdc8, properties=0x7fffffffd310, reports=0x0, poll_only=false, use_last_properties=true)
    at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm_event_system.c:1312
#8  0x000000000406c9f8 in wm_operator_call_internal (C=0x60c000000108, ot=0x611000057348, properties=0x7fffffffd310, reports=0x0, context=1, poll_only=false, event=0x60c00001bdc8)
    at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm_event_system.c:1513
#9  0x000000000406cc57 in WM_operator_name_call_ptr (C=0x60c000000108, ot=0x611000057348, context=1, properties=0x7fffffffd310)
    at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm_event_system.c:1561
#10 0x0000000006f14754 in ui_apply_but_funcs_after (C=0x60c000000108) at /home/dfelinto/src/blender/blender/source/blender/editors/interface/interface_handlers.c:904
#11 0x0000000006f9aa86 in ui_popup_handler (C=0x60c000000108, event=0x60c000189708, userdata=0x6120001f7748)
    at /home/dfelinto/src/blender/blender/source/blender/editors/interface/interface_handlers.c:10930
#12 0x00000000040642f1 in wm_handler_ui_call (C=0x60c000000108, handler=0x6080000d82a8, event=0x60c000189708, always_pass=0)
    at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm_event_system.c:638
#13 0x000000000407a0e6 in wm_handlers_do_intern (C=0x60c000000108, event=0x60c000189708, handlers=0x6130001f9118)
    at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm_event_system.c:2754
#14 0x000000000407b11e in wm_handlers_do (C=0x60c000000108, event=0x60c000189708, handlers=0x6130001f9118)
    at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm_event_system.c:2865
#15 0x00000000040807fc in wm_event_do_handlers (C=0x60c000000108) at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm_event_system.c:3289
#16 0x000000000404f2d3 in WM_main (C=0x60c000000108) at /home/dfelinto/src/blender/blender/source/blender/windowmanager/intern/wm.c:476
#17 0x0000000002d18e9f in main (argc=1, argv=0x7fffffffdd18) at /home/dfelinto/src/blender/blender/source/creator/creator.c:546