.
Thread 1 (process 4780):
#0  _int_malloc (av=0x7fc979cf4e40, bytes=1536) at malloc.c:4528
	p = <value optimized out>
	nb = 1552
	idx = 72
	bin = (mbinptr) 0x7fc979cf5308
	victim = (mchunkptr) 0xe001800200000000
	size = 43375264
	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 = <value optimized out>
	__func__ = "_int_malloc"
#1  0x00007fc9799f3254 in __libc_calloc (n=<value optimized out>, 
    elem_size=<value optimized out>) at malloc.c:4065
	av = (mstate) 0x7fc979cf4e40
	oldtop = (mchunkptr) 0x2a803f0
	bytes = 1536
	csz = <value optimized out>
	oldtopsize = 633872
	mem = (void *) 0x600
	clearsize = <value optimized out>
	nclears = <value optimized out>
	__func__ = "__libc_calloc"
#2  0x00007fc976730bda in g_main_loop_run (loop=0x600)
    at /build/buildd/glib2.0-2.25.15/glib/gmain.c:2929
	got_ownership = <value optimized out>
	self = (GThread *) 0x40
	__PRETTY_FUNCTION__ = "g_main_loop_run"
#3  0x00000000019a5000 in ?? ()
No symbol table info available.
#4  0x00000000026cce40 in ?? ()
No symbol table info available.
#5  0x000000000263a120 in ?? ()
No symbol table info available.
#6  0x00000000026cce40 in ?? ()
No symbol table info available.
#7  0x000000000291b860 in ?? ()
No symbol table info available.
#8  0x00000000019a7090 in ?? ()
No symbol table info available.
#9  0x000000000291b860 in ?? ()
No symbol table info available.
#10 0x00000000018ee3f0 in ?? ()
No symbol table info available.
#11 0x00007fc97533fb59 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
No symbol table info available.
#12 0x00007fc9753154e9 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
No symbol table info available.
#13 0x0000000000000000 in ?? ()
No symbol table info available.