bash-4.3$ 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 0x000000000000003d rbx 0xffffffffc8668140 Stack Backtrace on Core 2: rcx 0xffffffffc8668148 #01 [<0xffffffffc200a3b7>] in backtrace at src/kdebug.c:219 rdx 0x0000001f1235aaf8 #02 [<0xffffffffc2009b7c>] in _panic at src/init.c:266 rbp 0xfffffff00000efd8 #03 [<0xffffffffc20502f9>] in rcu_report_qs_rpi at src/rcu.c:325 rsi 0x0000000000000003 #04 [<0xffffffffc2050c4c>] in rcu_report_qs at src/rcu.c:340 rdi 0xffffffffc8668140 #05 [<0xffffffffc204d12b>] in proc_restartcore at src/process.c:807 r8 0x0000000000000000 #06 [<0xffffffffc20aaf20>] in sysenter_callwrapper at arch/x86/trap.c:861 r9 0xffffffffc8668238 r10 0x0000000000000078 r11 0xffffffffc86681f8 r12 0xffff80000218aae0 r13 0x0000000000000003 r14 0x0000000000000000 r15 0x0000000000000003 trap 0x00000008 Double Fault ROS(Core 2)> gsbs 0xffffffffc8668140 fsbs 0x0000000000000000 err 0x--------00000000 rip 0xffffffffc209f2c1 cs 0x------------0008 flag 0x0000000000010246 rsp 0xfffffff00000efd8 ss 0x------------0010 Backtrace of kernel context on Core 3: #01 [<0xffffffffc209f2c1>] in cpu_halt at arch/x86/idle.c:20 #02 [<0xffffffffc205442a>] in __smp_idle at src/smp.c:84 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