I use x86 openwrt An error occurs every few hours.
If you know why. Thank you for your reply.
Thank you ! Thank you !
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS4, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS4
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS4, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty34, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty34
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty34, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty62, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty62
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty62, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty24, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty24
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty24, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS11, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS11
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS11, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty8, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty8
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty8, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty52, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty52
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty52, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty14, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty14
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty14, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty42, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty42
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty42, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS2, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS2
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS2, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty32, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty32
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty32, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty60, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty60
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty60, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty22, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty22
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty22, subsystem=tty
Fri May 6 20:05:01 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:01 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty6, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty6
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty6, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty50, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty50
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty50, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty12, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty12
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty12, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty40, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty40
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty40, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS0, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS0
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS0, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty30, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty30
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty30, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty59, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty59
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty59, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty20, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty20
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty20, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty4, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty4
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty4, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty49, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty49
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty49, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty10, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty10
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty10, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS9, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS9
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS9, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty39, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty39
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty39, subsystem=tty
Fri May 6 20:05:02 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty29, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty29
Fri May 6 20:05:02 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty29, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty57, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty57
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty57, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty19, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty19
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty19, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty2, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty2
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty2, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty47, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty47
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty47, subsystem=tty
Fri May 6 20:05:03 2022 daemon.info pppd[7322]: PPP session is 16750
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS7, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS7
Fri May 6 20:05:03 2022 daemon.warn pppd[7322]: Connected to 58:60:27:12:81:01 via interface eth1
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS7, subsystem=tty
Fri May 6 20:05:03 2022 kern.info kernel: [ 46.114499] pppoe-wan: renamed from ppp0
Fri May 6 20:05:03 2022 daemon.info pppd[7322]: Renamed interface ppp0 to pppoe-wan
Fri May 6 20:05:03 2022 daemon.info pppd[7322]: Using interface pppoe-wan
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: Connect: pppoe-wan <--> eth1
Fri May 6 20:05:03 2022 daemon.info pppd[7322]: syncppp not active
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty37, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty37
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty37, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty27, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty27
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty27, subsystem=tty
Fri May 6 20:05:03 2022 daemon.info pppd[7322]: Remote message: Authentication success,Welcome!
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: PAP authentication succeeded
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: peer from calling number 58:60:27:12:81:01 authorized
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: local LL address fe80::c1a1:992d:5fd6:c6e7
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: remote LL address fe80::5a60:27ff:fe12:8101
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: local IP address 100.64.231.183
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: remote IP address 100.64.0.1
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: primary DNS address 202.96.134.33
Fri May 6 20:05:03 2022 daemon.notice pppd[7322]: secondary DNS address 202.96.128.86
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.notice netifd: Network device 'pppoe-wan' link is up
Fri May 6 20:05:03 2022 daemon.notice netifd: Interface 'wan' is now up
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS14, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS14
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS14, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.notice netifd: Network alias 'pppoe-wan' link is up
Fri May 6 20:05:03 2022 daemon.notice netifd: Interface 'wan_6' is enabled
Fri May 6 20:05:03 2022 daemon.notice netifd: Interface 'wan_6' has link connectivity
Fri May 6 20:05:03 2022 daemon.notice netifd: Interface 'wan_6' is setting up now
Fri May 6 20:05:03 2022 daemon.notice netifd: Interface 'wan_6' is now up
Fri May 6 20:05:03 2022 daemon.debug ModemManager[9384]: hotplug: event reported: action=add, name=ppp0, subsystem=net
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty55, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty55
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty55, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[9384]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.warn [7281]: <warn> [ppp0] invalid sysfs path read for net/ppp0
Fri May 6 20:05:03 2022 daemon.warn [7281]: <warn> [base-manager] couldn't handle kernel event: device net/ppp0 not found
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.debug ModemManager[9633]: hotplug: event reported: action=move, name=pppoe-wan, subsystem=net
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty17, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty17
Fri May 6 20:05:03 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty17, subsystem=tty
Fri May 6 20:05:03 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:03 2022 daemon.warn [7281]: <warn> [base-manager] couldn't handle kernel event: Invalid 'action' parameter given: 'move' (expected 'add' or 'remove')
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty0, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty0
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty0, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty45, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty45
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty45, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS5, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS5
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS5, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty35, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty35
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty35, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty63, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty63
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty63, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty25, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty25
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty25, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=ttyS12, subsystem=tty, sysfspath=/sys/devices/platform/serial8250/tty/ttyS12
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=ttyS12, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: cached event found: action=add, name=tty9, subsystem=tty, sysfspath=/sys/devices/virtual/tty/tty9
Fri May 6 20:05:04 2022 daemon.debug ModemManager[7216]: hotplug: event reported: action=add, name=tty9, subsystem=tty
Fri May 6 20:05:04 2022 daemon.err ModemManager[7216]: hotplug: parent device sysfspath not found