kernel panic at kern/arch/x86/trap.c:628, from core 3: Damn Damn!  Unhandled trap in the kernel!
HW TRAP frame at 0xfffffff0000a6cc0 on core 3
  rax  0x00007f7fffa01200
  rbx  0x000006a000000d40
  rcx  0xffff800004f7bca8
  rdx  0xfffffff0000a6df0
  rbp  0xfffffff0000a6d88
  rsi  0x0000861fffa02c10
  rdi  0xffff80000218b900
  r8   0x0000000000000001
  r9   0x0000000000000000
  r10  0x000010000000a4c0
  r11  0x0000000000000202
  r12  0xffff80000218b900
  r13  0xffff80000218b900
  r14  0xfffffff0000a6df0
  r15  0x0000000000000008
  trap 0x0000000d General Protection
  gsbs 0xffffffffc8996340
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc2007059
  cs   0x------------0008
  flag 0x0000000000010286
  rsp  0xfffffff0000a6d88
  ss   0x------------0010
Backtrace of kernel context on Core 3:
#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