#0  gcChipPatchDrawIndex (gc=0x4912fc, Mode=5, Count=12, Type=5123, 
    Indices=0x6760b8, Indices@entry=0x4e7bb4) at src/chip/gc_chip_patch.c:21346
#1  0x76f73bb0 in gcChipPatchDraw (gc=0x4912fc, gc@entry=0x0, 
    Mode=<optimized out>, Count=<optimized out>, Type=<optimized out>, 
    Indices=0x6760b8) at src/chip/gc_chip_patch.c:21596
#2  0x76f68d5c in gcChipValidateDrawPath (chipCtx=0x4e7bb4, gc=0x0)
    at src/chip/gc_chip_draw.c:3078
#3  __glChipDrawValidateState (gc=0x0) at src/chip/gc_chip_draw.c:5035
#4  0x76f387b4 in __glDrawValidateState (gc=0x4912fc)
    at src/glcore/gc_es_draw.c:585
#5  __glDrawPrimitive (gc=0x4912fc, mode=<optimized out>)
    at src/glcore/gc_es_draw.c:941
#6  0x76f13fd0 in glDrawElements (mode=5, count=12, type=5123, 
    indices=0x6760b8) at src/glcore/gc_es_api.c:406
#7  0x7697bd50 in ?? () from /usr/lib/libQt5Gui.so.5