kernel panic at kern/arch/x86/trap.c:628, from core 2: Damn Damn!  Unhandled trap in the kernel!
HW TRAP frame at 0xfffffff0000cacc0 on core 2
  rax  0x00007f7fffa01200
  rbx  0x00000d3fffffd840
  rcx  0xffff8000069ec9d8
  rdx  0xfffffff0000cadf0
  rbp  0xfffffff0000cad88
  rsi  0x00008cbfff9ff6c0
  rdi  0xffff800002176e00
  r8   0x0000000000000000
  r9   0x0000000000000000
  r10  0x000010000000a4c0
  r11  0x0000000000000202
  r12  0xffff800002176e00
  r13  0xffff800002176e00
  r14  0xfffffff0000cadf0
  r15  0x0000000000000000
  trap 0x0000000d General Protection
  gsbs 0xffffffffc8996080
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc2007059
  cs   0x------------0008
  flag 0x0000000000010286
  rsp  0xfffffff0000cad88
  ss   0x------------0010
Backtrace of kernel context on Core 2:
#01 [<0xffffffffc2007059>] in post_ev_msg.isra.1 at src/event.c:83
#02 [<     [inline]     >] in post_vc_msg at src/event.c:107
#02 [<0xffffffffc20078b6>] in post_vcore_event at src/event.c:491
#03 [<0xffffffffc2057a12>] in sys_self_notify at src/syscall.c:1461
#04 [<0xffffffffc2059c49>] in syscall at src/syscall.c:2560
#05 [<0xffffffffc205a7f8>] in run_local_syscall at src/syscall.c:2597
#06 [<0xffffffffc205ad39>] in prep_syscalls at src/syscall.c:2617
#07 [<0xffffffffc20ac622>] in sysenter_callwrapper at arch/x86/trap.c:877