ffffffff8109b5d0 : ffffffff8109b5d0: 55 push %rbp ffffffff8109b5d1: 48 89 e5 mov %rsp,%rbp ffffffff8109b5d4: 53 push %rbx ffffffff8109b5d5: 50 push %rax ffffffff8109b5d6: 48 89 fb mov %rdi,%rbx ffffffff8109b5d9: e8 12 ae 87 00 callq ffffffff819163f0 ffffffff8109b5de: 31 f6 xor %esi,%esi ffffffff8109b5e0: 48 89 df mov %rbx,%rdi ffffffff8109b5e3: e8 08 00 00 00 callq ffffffff8109b5f0 <__cancel_work_timer> ffffffff8109b5e8: 48 83 c4 08 add $0x8,%rsp ffffffff8109b5ec: 5b pop %rbx ffffffff8109b5ed: 5d pop %rbp ffffffff8109b5ee: c3 retq ffffffff8109b5ef: 90 nop