rip: ffffffff810013aa hypercall_page+0x3aa 
flags: 00001246 i z p
rsp: ffffffff81801ee0
rax: 0000000000000000	rcx: ffffffff810013aa	rdx: 0000000000000000
rbx: ffffffff81800010	rsi: 00000000deadbeef	rdi: 00000000deadbeef
rbp: ffffffff81801ef8	 r8: 0000000000000000	 r9: ffff880018ef55c0
r10: 00001f070d472b00	r11: 0000000000000246	r12: 0000000000000000
r13: 0000000000000000	r14: ffffffffffffffff	r15: 0000000000000000
 cs: e033	 ss: e02b	 ds: 0000	 es: 0000
 fs: 0000 @ 00007fdbb01e3720
 gs: 0000 @ ffff880018ee7000/0000000000000000
Code (instr addr ffffffff810013aa)
cc cc cc cc cc cc cc cc cc cc cc 51 41 53 b8 1d 00 00 00 0f 05 <41> 5b 59 c3 cc cc cc cc cc cc cc 


Stack:
 0000000000000000 0000000000000000 ffffffff810072a0 ffffffff81801f18
 ffffffff81012528 ffffffff81800010 ffffffff8185a2a0 ffffffff81801f38
 ffffffff81009faf 0000000000000000 6db6db6db6db6db7 ffffffff81801f48
 ffffffff813fb388 ffffffff81801f88 ffffffff81875c79 ffffffff81801f88

Call Trace:
  [<ffffffff810013aa>] hypercall_page+0x3aa  <--
  [<ffffffff810072a0>] xen_safe_halt+0x10 
  [<ffffffff81012528>] default_idle+0x58 
  [<ffffffff81009faf>] cpu_idle+0x5f 
  [<ffffffff813fb388>] rest_init+0x68 
  [<ffffffff81875c79>] start_kernel+0x36f 
  [<ffffffff81875346>] x86_64_start_reservations+0x131 
  [<ffffffff81878245>] xen_start_kernel+0x5f1