[<ffffffff85fdfb66>] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331
[<ffffffff860029b6>] _new_vmalloc_restore_context_a0+0xc2/0xce
Code: 9bbe 8513 020b f097 fbcd 80e7 8e20 4785 8713 020b (202f) 00f7 
---[ end trace 0000000000000000 ]---
Kernel panic - not syncing: Fatal exception in interrupt
SMP: stopping secondary CPUs
----------------
Code disassembly (best guess):
   0:	9bbe                	add	s7,s7,a5
   2:	020b8513          	add	a0,s7,32
   6:	fbcdf097          	auipc	ra,0xfbcdf
   a:	8e2080e7          	jalr	-1822(ra) # 0xfbcde8e8
   e:	4785                	li	a5,1
  10:	020b8713          	add	a4,s7,32
* 14:	00f7202f          	amoadd.w	zero,a5,(a4) <-- trapping instruction