kernel panic at kern/src/rcu.c:323, from core 3: assertion failed: rpi->gp_acked + 1 == READ_ONCE(rsp->gpnum) Stack Backtrace on Core 3: #01 [<0xffffffffc200a2bc>] in backtrace at src/kdebug.c:220 #02 [<0xffffffffc2009afd>] in _panic at src/init.c:268 #03 [<0xffffffffc20504fb>] in rcu_report_qs_rpi at src/rcu.c:323 #04 [<0xffffffffc2050edc>] in rcu_report_qs at src/rcu.c:338 #05 [<0xffffffffc2054633>] in __smp_idle at src/smp.c:75 kernel panic at kern/arch/x86/trap.c:540, from core 2: Double fault! Check the kernel stack pointer; you likely ran off the end of the stack. HW TRAP frame at 0xfffffff00001af40 on core 2 rax 0x000000000000003d rbx 0xffffffffc8667ec0 rcx 0xffffffffc8667ec8 rdx 0x00000028d7431786 rbp 0xfffffff0000dcfd8 rsi 0x0000000000000003 rdi 0xffffffffc8667ec0 r8 0xffffffffc8667f00 r9 0xffff80000217edc0 r10 0x0000000000000018 r11 0xfffffff0000dce70 r12 0x0000000000000001 r13 0x00007f7fff9fed90 r14 0x0000000000000000 r15 0x00007f7fff9feeb8 trap 0x00000008 Double Fault gsbs 0xffffffffc8667ec0 fsbs 0x0000000000000000 err 0x--------00000000 rip 0xffffffffc209f6c1 cs 0x------------0008 flag 0x0000000000010246 rsp 0xfffffff0000dcfd8 ss 0x------------0010 Backtrace of kernel context on Core 2: #01 [<0xffffffffc209f6c1>] in cpu_halt at arch/x86/idle.c:20 #02 [<0xffffffffc2054706>] in __smp_idle at src/smp.c:84