kernel panic at kern/src/rcu.c:325, from core 3: HW TRAP frame at 0xfffffff000023f40 on core 2
assertion failed: rpi->gp_acked + 1 == READ_ONCE(rsp->gpnum)  rax  0x0000000000000027
  rbx  0xffffffffc8667ec0
Stack Backtrace on Core 3:
  rcx  0x00000000000003d4
#01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219
  rdx  0x00000000000010d1
#02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266
  rbp  0xfffffff0000a6d08
#03 [<0xffffffffc20502f9>] in rcu_report_qs_rpi at src/rcu.c:325
  rsi  0x0000000000000780
#04 [<0xffffffffc2050c4c>] in rcu_report_qs at src/rcu.c:340
  rdi  0xffffffffc210eba0
#05 [<0xffffffffc204d12b>] in proc_restartcore at src/process.c:807
  r8   0xffff8000000b8fa0
#06 [<0xffffffffc20aaf20>] in sysenter_callwrapper at arch/x86/trap.c:861
  r9   0x0000000000000f00
  r10  0xffff8000000b8f00
  r11  0xffff8000000b8ec0
  r12  0xfffffff0000a6d20
  r13  0xffffffffc20ba668
  r14  0x0000000000000246
  r15  0xffff800002182ac0
ROS(Core 3)>   trap 0x00000008 Double Fault
  gsbs 0xffffffffc8667ec0
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc20481d1
  cs   0x------------0008
  flag 0x0000000000010202
  rsp  0xfffffff0000a6cb8
  ss   0x------------0010
Backtrace of kernel context on Core 2:
#01 [<0xffffffffc20481d1>] in vcprintf at src/printf.c:92
#02 [<0xffffffffc2048223>] in cprintf at src/printf.c:103
#03 [<0xffffffffc2006fda>] in post_ev_msg.isra.1 at src/event.c:94
#04 [<0xffffffffc2007563>] in send_event at src/event.c:440
#05 [<0xffffffffc2055d45>] in sys_send_event at src/syscall.c:1520
#06 [<0xffffffffc2059149>] in syscall at src/syscall.c:2528
#07 [<0xffffffffc2059304>] in run_local_syscall at src/syscall.c:2563
#08 [<0xffffffffc2059839>] in prep_syscalls at src/syscall.c:2583
#09 [<0xffffffffc20aaf1a>] in sysenter_callwrapper at arch/x86/trap.c:859
kernel panic at kern/arch/x86/trap.c:541, from core 2: Double fault!  Check the kernel stack pointer; you likely ran off the end of the stack.
Stack Backtrace on Core 2:
#01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219
#02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266
#03 [<0xffffffffc20aa253>] in handle_double_fault at arch/x86/trap.c:541