kernel panic at kern/arch/x86/trap.c:312, from core 0: Proc-ful Page Fault in the Kernel at 0x00007f7fffd52bc0!
HW TRAP frame at 0xfffffff00006acc0 on core 0
  rax  0x00007f7fffa01200
  rbx  0x0000000000350d40
  rcx  0xffff80000324db40
  rdx  0xfffffff00006adf0
  rbp  0xfffffff00006ad88
  rsi  0x00007f7fffd52bc0
  rdi  0xffff80000218c000
  r8   0x0000000000000000
  r9   0x0000000000000000
  r10  0x0000000000000000
  r11  0x0000000000000202
  r12  0xffff80000218c000
  r13  0xffff80000218c000
  r14  0xfffffff00006adf0
  r15  0x0000000000000000
  trap 0x0000000e Page Fault
  gsbs 0xffffffffc880b9c0
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc2007049
  cs   0x------------0008
  flag 0x0000000000010286
  rsp  0xfffffff00006ad88
  ss   0x------------0010
Backtrace of kernel context on Core 0:
#01 [<0xffffffffc2007049>] in post_ev_msg.isra.1 at src/event.c:82
#02 [<     [inline]     >] in post_vc_msg at src/event.c:106
#02 [<0xffffffffc20078c6>] in post_vcore_event at src/event.c:489
#03 [<0xffffffffc20572e2>] in sys_self_notify at src/syscall.c:1425
#04 [<0xffffffffc2059569>] in syscall at src/syscall.c:2455
#05 [<0xffffffffc2059734>] in run_local_syscall at src/syscall.c:2490
#06 [<0xffffffffc2059c69>] in prep_syscalls at src/syscall.c:2510
#07 [<0xffffffffc20ab5fa>] in sysenter_callwrapper at arch/x86/trap.c:854