#0  0x00007f152103848d in malloc_consolidate (av=Unhandled dwarf expression opcode 0x9f
) at arena.c:275
	fb = <value optimized out>
	maxfb = <value optimized out>
	p = (mchunkptr) 0x1769260
	nextp = (mchunkptr) 0x0
	unsorted_bin = (mchunkptr) 0x7f152133f1f8
	first_unsorted = <value optimized out>
	nextchunk = (mchunkptr) 0x17692c0
	size = 144
	nextsize = <value optimized out>
	prevsize = <value optimized out>
	nextinuse = <value optimized out>
	bck = (mchunkptr) 0x1
	fwd = (mchunkptr) 0x0
	__func__ = "malloc_consolidate"
#1  0x00007f1521039db2 in _int_malloc (av=0x7f152133f1a0, bytes=1080)
    at arena.c:275
	nb = 1088
	idx = <value optimized out>
	bin = <value optimized out>
	victim = <value optimized out>
	size = <value optimized out>
	victim_index = <value optimized out>
	remainder = <value optimized out>
	remainder_size = <value optimized out>
	block = <value optimized out>
	bit = <value optimized out>
	map = <value optimized out>
	fwd = <value optimized out>
	bck = <value optimized out>
	errstr = Unhandled dwarf expression opcode 0x9f