kernel panic at kern/src/rcu.c:325, from core 2: HW TRAP frame at 0xfffffff00001af40 on core 3
assertion failed: rpi->gp_acked + 1 == READ_ONCE(rsp->gpnum)  rax  0xffffffffc8667b08
  rbx  0xffffffffc8667b08
Stack Backtrace on Core 2:
  rcx  0x0000000000000000
#01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219
  rdx  0x0000000000000046
#02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266
  rbp  0xfffffff0000f4cb8
#03 [<0xffffffffc20502f9>] in rcu_report_qs_rpi at src/rcu.c:325
  rsi  0xffff800008003048
#04 [<0xffffffffc2050c4c>] in rcu_report_qs at src/rcu.c:340
  rdi  0xffffffffc8667b08
#05 [<0xffffffffc2054363>] in __smp_idle at src/smp.c:75
  r8   0x0000000e932888e9
  r9   0x0000000e932888e9
  r10  0x0000000000000000
  r11  0x0000000000000000
  r12  0xffff800008003048
  r13  0x0000000000000246
  r14  0xffff800008003048
  r15  0xffff800008003020
  trap 0x00000008 Double Fault
  gsbs 0xffffffffc8668140
  fsbs 0x0000000000000000
  err  0x--------00000000
ROS(Core 2)>   rip  0xffffffffc8667b52
  cs   0x------------0008
  flag 0x0000000000010002
  rsp  0xfffffff0000f4cb0
  ss   0x------------0010
Backtrace of kernel context on Core 3:
#01 [<0xffffffffc8667b52>] in per_cpu_info
#02 [<0xffffffffc20001ca>] in __set_alarm at src/alarm.c:240
#03 [<     [inline]     >] in __set_alarm_rkm at src/alarm.c:260
#03 [<0xffffffffc2000642>] in set_alarm at src/alarm.c:271
#04 [<     [inline]     >] in set_proc_alarm at drivers/dev/alarm.c:447
#04 [<0xffffffffc2071fad>] in alarmwrite at drivers/dev/alarm.c:468
#05 [<0xffffffffc20402b1>] in rwrite at src/ns/sysfile.c:1123
#06 [<0xffffffffc20404cb>] in syswrite at src/ns/sysfile.c:1141
#07 [<0xffffffffc2055c81>] in sys_write at src/syscall.c:1785
#08 [<0xffffffffc2059149>] in syscall at src/syscall.c:2528
#09 [<0xffffffffc2059304>] in run_local_syscall at src/syscall.c:2563
#10 [<0xffffffffc2059839>] in prep_syscalls at src/syscall.c:2583
#11 [<0xffffffffc20aaf1a>] in sysenter_callwrapper at arch/x86/trap.c:859
kernel panic at kern/arch/x86/trap.c:541, from core 3: Double fault!  Check the kernel stack pointer; you likely ran off the end of the stack.
Stack Backtrace on Core 3:
#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