#0  0x00007ffff4a545d0 in ?? () from /lib/libc.so.6
#1  0x00007ffff4a55e74 in calloc () from /lib/libc.so.6
#2  0x0000000001293bfb in MEM_callocN (len=56, str=0x19fda60 "ActKeyColumn") at intern/guardedalloc/intern/mallocn.c:301
#3  0x0000000000b374a3 in nalloc_ak_bezt (data=0x4568550) at source/blender/editors/animation/keyframes_draw.c:132
#4  0x0000000001145a5f in BLI_dlrbTree_add (tree=0x7fffffffdfe0, cmp_cb=0xb37420 <compare_ak_bezt>, new_cb=0xb37486 <nalloc_ak_bezt>, update_cb=0xb3752e <nupdate_ak_bezt>, data=0x4568550)
    at source/blender/blenlib/intern/DLRB_tree.c:544
#5  0x0000000000b375f8 in add_bezt_to_keycolumns_list (keys=0x7fffffffdfe0, bezt=0x4568550) at source/blender/editors/animation/keyframes_draw.c:169
#6  0x0000000000b38bdc in fcurve_to_keylist (adt=0x4558830, fcu=0x4568430, keys=0x7fffffffdfe0, blocks=0x0) at source/blender/editors/animation/keyframes_draw.c:877
#7  0x0000000000b38d1f in action_to_keylist (adt=0x4558830, act=0x4566c00, keys=0x7fffffffdfe0, blocks=0x0) at source/blender/editors/animation/keyframes_draw.c:918
#8  0x0000000000b38623 in scene_to_keylist (ads=0x7fffffffdfb0, sce=0x4557fe0, keys=0x7fffffffdfe0, blocks=0x0) at source/blender/editors/animation/keyframes_draw.c:728
#9  0x0000000000a693ee in time_draw_idblock_keyframes (v2d=0x4553850, id=0x4557fe0, onlysel=0) at source/blender/editors/space_time/space_time.c:134
#10 0x0000000000a69519 in time_draw_keyframes (C=0x2861ab0, stime=0x45539b0, ar=0x4553840) at source/blender/editors/space_time/space_time.c:178
#11 0x0000000000a69785 in time_main_area_draw (C=0x2861ab0, ar=0x4553840) at source/blender/editors/space_time/space_time.c:254
#12 0x0000000000aa42d2 in ED_region_do_draw (C=0x2861ab0, ar=0x4553840) at source/blender/editors/screen/area.c:352
#13 0x00000000008778c2 in wm_method_draw_triple (C=0x2861ab0, win=0x450afe0) at source/blender/windowmanager/intern/wm_draw.c:577
#14 0x0000000000877df9 in wm_draw_update (C=0x2861ab0) at source/blender/windowmanager/intern/wm_draw.c:717
#15 0x000000000087945c in WM_main (C=0x2861ab0) at source/blender/windowmanager/intern/wm.c:331
#16 0x000000000087467f in main (argc=2, argv=0x7fffffffe348) at source/creator/creator.c:1038