root@(none):/# echo 1 > /sys/class/ae350_standby/use_ultra_standby
ac327 send hard syn message: 0x80300202
ac327 receive hard syn message feedback: 0x300202
root@(none):/# poweroff
The system is going down NOW!
Sent SIGTERM to all processes
Requesting system poweroff
ac327 send hard syn message: 0x260202
ac327 receive hard syn message feedback: 0x260202
ac327 send hard syn message: 0x260202
ac327 receive hard syn message feedback: 0x260202
ac327 send hard syn message: 0x280202
ac327 receive hard syn message feedback: 0x280202
[  661.055340] reboot: Power down
ae350_system_reset(): CPU[0] SHUTDOWN
ac327 send hard syn message: 0x80240202
ac327 receive hard syn message feedback: 0x240202

[634.384][PLAT_LOG]STEP_REC_HEAD state: 0x02 attr: 0x02 type: 0x30
[634.385][PLAT_LOG]STEP_REC_LEN cnt: 0x0000 len: 0x0001

[661.080][PLAT_LOG]STEP_REC_HEAD state: 0x02 attr: 0x02 type: 0x26
[661.081][PLAT_LOG]STEP_REC_LEN cnt: 0x0000 len: 0x0001
[661.086][PLAT_LOG]STEP_REC_HEAD state: 0x02 attr: 0x02 type: 0x26
[661.086][PLAT_LOG]STEP_REC_LEN cnt: 0x0000 len: 0x0001
[661.099][PLAT_LOG]STEP_REC_HEAD state: 0x02 attr: 0x02 type: 0x28
[661.100][PLAT_LOG]STEP_REC_LEN cnt: 0x0000 len: 0x0001
[661.112][PLAT_LOG]STEP_REC_HEAD state: 0x02 attr: 0x02 type: 0x24
[661.112][PLAT_LOG]STEP_REC_LEN cnt: 0x0000 len: 0x0001
[661.113][PLAT_LOG]enter ultra standby
[661.116][VIN]csi_link_deinit standby_mode is 1

[661.121][RPBUF_INFO][rpbuf_free_buffer_internal:1391]buffer "isp0_load_rpbuf" (id:2): buffers -> remote_dummy_buffers
[661.132][RPBUF_INFO][rpbuf_free_buffer_internal:1391]buffer "isp0_save_rpbuf" (id:3): buffers -> remote_dummy_buffers
[661.143][RPBUF_INFO][rpbuf_free_buffer_internal:1391]buffer "isp0_ldci_rpbuf" (id:4): buffers -> remote_dummy_buffers
[661.154][ISP]isp0 exit end!!!

[661.157]wlan_fmac_xrlink_deinit start
[661.160]xrlink txrx deinit finish.
[661.164][RPBUF_INFO][rpbuf_free_buffer_internal:1391]buffer "xradio_mtx" (id:0): buffers -> remote_dummy_buffers
[661.174][RPBUF_INFO][rpbuf_free_buffer_internal:1391]buffer "xradio_mrx" (id:1): buffers -> remote_dummy_buffers
[661.185]rpmsg_xradio_deinit
[661.188][RV] [AMP_INFO][rpmsg_unregister_driver:218]Unsupport rpmsg_unregister_driver
[661.874]hal_msgbox_channel_send_data(764): message queue is full for a long time!!!

[661.875][RV] [AMP_ERR][msgbox_ipi_notify:211]rv-vring-ipi: Failed to send message to remote
[661.879][RV] [AMP_ERR][rproc_common_notify:261]rv-vring-ipi (id: 0) notify failed
[662.566]hal_msgbox_channel_send_data(764): message queue is full for a long time!!!

[662.566][RV] [AMP_ERR][msgbox_ipi_notify:211]rv-vring-ipi: Failed to send message to remote
[662.571][RV] [AMP_ERR][rproc_common_notify:261]rv-vring-ipi (id: 0) notify failed
[663.257]hal_msgbox_channel_send_data(764): message queue is full for a long time!!!

[663.257][RV] [AMP_ERR][msgbox_ipi_notify:211]rv-vring-ipi: Failed to send message to remote
[663.262][RV] [AMP_ERR][rproc_common_notify:261]rv-vring-ipi (id: 0) notify failed
[663.270][RV] [AMP_INFO][rproc_common_remove:100]remove rproc...