=> 0x7fdccc5bd477:	mov    0x8(%rax),%r8
   0x7fdccc5bd47b:	xor    %eax,%eax
   0x7fdccc5bd47d:	callq  0x7fdccc652930
   0x7fdccc5bd482:	lea    0x38(%rsp),%rdx
   0x7fdccc5bd487:	nopw   0x0(%rax,%rax,1)
   0x7fdccc5bd490:	xor    %ecx,%ecx
   0x7fdccc5bd492:	mfence 
   0x7fdccc5bd495:	mov    0x38(%rsp),%rdi
   0x7fdccc5bd49a:	mov    %rdi,%rax
   0x7fdccc5bd49d:	lock cmpxchg %rcx,(%rdx)
   0x7fdccc5bd4a2:	jne    0x7fdccc5bd492
   0x7fdccc5bd4a4:	test   %rdi,%rdi
   0x7fdccc5bd4a7:	je     0x7fdccc5bd4ae
   0x7fdccc5bd4a9:	callq  0x7fdccc5ab330 <g_object_unref@plt>
   0x7fdccc5bd4ae:	cmpq   $0x0,0x18(%rsp)
   0x7fdccc5bd4b4:	je     0x7fdccc5bd4c0