=> 0xdc3929 <free+73>:	mov    (%eax),%esi
   0xdc392b <free+75>:	xor    %eax,%eax
   0xdc392d <free+77>:	mov    $0x1,%ecx
   0xdc3932 <free+82>:	cmpl   $0x0,%gs:0xc
   0xdc393a <free+90>:	je     0xdc393d <free+93>
   0xdc393c <free+92>:	lock cmpxchg %ecx,(%esi)
   0xdc3940 <free+96>:	jne    0xdc512e
   0xdc3946 <free+102>:	mov    %esi,%eax
   0xdc3948 <free+104>:	call   0xdc02d0
   0xdc394d <free+109>:	cmpl   $0x0,%gs:0xc
   0xdc3955 <free+117>:	je     0xdc3958 <free+120>
   0xdc3957 <free+119>:	lock subl $0x1,(%esi)
   0xdc395b <free+123>:	jne    0xdc513a
   0xdc3961 <free+129>:	mov    0x8(%esp),%ebx
   0xdc3965 <free+133>:	mov    0xc(%esp),%esi
   0xdc3969 <free+137>:	add    $0x10,%esp