[<0>] do_wait+0x5c/0x110
[<0>] kernel_wait4+0xbd/0x170
[<0>] __do_sys_wait4+0xad/0xc0
[<0>] __x64_sys_wait4+0x1c/0x30
[<0>] x64_sys_call+0x1fbf/0x25a0
[<0>] do_syscall_64+0x87/0x180
[<0>] entry_SYSCALL_64_after_hwframe+0x78/0x80