#0  __pthread_mutex_lock (mutex=0x7fffac9b18c0) at pthread_mutex_lock.c:50
        __PRETTY_FUNCTION__ = "__pthread_mutex_lock"
        type = 1666411617
#1  0x00007fcebcbf7125 in XrmQGetResource (db=0x7fcebe387850, names=names@entry=0x7fffac9b18a0, classes=classes@entry=0x7fffac9b18b0, pType=pType@entry=0x7fffac9b189c, pValue=pValue@entry=0x7fffac9b18c0) at ../../src/Xrm.c:2543
        table = <optimized out>
        closure = {type = 0x7fcebb42612b, value = 0x7fcebb42612b}
#2  0x00007fcebcbd3832 in XGetDefault (dpy=0x7fcebe354fc0, prog=0x7fcebb42612b "ay[1] - shading->decode_array[0] >= ((double)2.22044604925031308085e-16L)", name=0x7fcebb42612f "] - shading->decode_array[0] >= ((double)2.22044604925031308085e-16L)") at ../../src/GetDflt.c:254
        names = {332, 334, 0}
        classes = {341, 342, 0}
        fromType = 32718
        result = {size = 3141689647, addr = 0x7fcebb42612b "ay[1] - shading->decode_array[0] >= ((double)2.22044604925031308085e-16L)"}
        progname = 0x7fcebb42612b "ay[1] - shading->decode_array[0] >= ((double)2.22044604925031308085e-16L)"
#3  0x00007fcebb3e505f in composite_glyphs (surface=0x3000000cb0000, op=1769472, _src=0x7fcebfcb4b98, src_x=-1068818080, src_y=32718, dst_x=-1153937080, dst_y=0, info=0x7fffac9b26c0) at /build/buildd/cairo-1.12.2/src/cairo-xlib-render-compositor.c:1404
        old_width = <optimized out>
        dst = 0x3000000cb0000
        glyphs = 0x7fcebb38155f
        src = 0x7fcebfcb4b98
        display = 0x0
        status = <optimized out>
        glyph = 0x1d1f00001c2a00
        x = <optimized out>
        y = <optimized out>
        glyphset = <optimized out>
        this_glyphset_info = <optimized out>
        max_index = <optimized out>
        width = <optimized out>
        num_elts = <optimized out>
        num_out_glyphs = <optimized out>
        num_glyphs = 0
        max_request_size = 32729
        request_size = <optimized out>
        i = <optimized out>
#4  0x00007fcec0453e14 in ?? ()
No symbol table info available.
#5  0x0000000000000000 in ?? ()
No symbol table info available.