bash-4.3$ kernel panic at kern/src/rcu.c:325, from core 2: HW TRAP frame at 0xfffffff000020f40 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  0xfffffff000088cae
#03 [<0xffffffffc20502f9>] in rcu_report_qs_rpi at src/rcu.c:325
  rsi  0xffff800002fcbc48
#04 [<0xffffffffc2050c4c>] in rcu_report_qs at src/rcu.c:340
  rdi  0xffffffffc8667b08
#05 [<0xffffffffc2054363>] in __smp_idle at src/smp.c:75
  r8   0x000000110921fe7a
  r9   0x000000110921fe7a
  r10  0x0000000000000000
  r11  0x0000000000000000
  r12  0xffff800002fcbc48
  r13  0x0000000000000246
  r14  0xffff800002fcbc48
  r15  0xffff800002fcbc20
  trap 0x00000008 Double Fault
  gsbs 0xffffffffc8668140
  fsbs 0x0000000000000000
  err  0x--------00000000
ROS(Core 2)>   rip  0xffffffffc8667b57
  cs   0x------------0008
  flag 0x0000000000010006
  rsp  0xfffffff000078c71
  ss   0x------------0010
HW TRAP frame at 0xfffffff000020f40 on core 3
  rax  0x0000000000000002
  rbx  0x0000000000000003
  rcx  0x0000000000000014
  rdx  0xfffffff000020e40
  rbp  0xfffffff000020ef0
  rsi  0xffffc20001158cb8
  rdi  0xfff000088cc8ffff
  r8   0xffffc20001158cb8
  r9   0xffffffffc20ac1ce
  r10  0xffff7fffffffffff
  r11  0xffff8000000b8ec0
  r12  0xffff800002fcbc48
  r13  0x0000000000000246
  r14  0xffff800002fcbc48
  r15  0xffff800002fcbc20
  trap 0x00000008 Double Fault
  gsbs 0xffffffffc8668140
  fsbs 0x0000000000000000
  err  0x--------00000000
  rip  0xffffffffc20a0ed0
  cs   0x------------0008
  flag 0x0000000000010012
  rsp  0xfffffff000020e38
  ss   0x------------0010
Backtrace of kernel context on Core 3:
#01 [<0xffffffffc20a0ed0>] in backtrace_list at arch/x86/kdebug.c:364
#02 [<0xffffffffc200a535>] in backtrace_hwtf at src/kdebug.c:254
#03 [<0xffffffffc20aa239>] in handle_double_fault at arch/x86/trap.c:540
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