我的系統崩潰了。如以下日誌所示，systemd-udev.service 正在崩潰：
Apr 03 20:15:04 dut-3 charon-systemd[23290]: sending keep alive to 194.1.1.1[40055]
Apr 03 20:15:04 dut-3 charon-systemd[23290]: sending keep alive to 194.1.1.1[40055]
Apr 03 20:15:04 dut-3 charon-systemd[23290]: sending keep alive to 194.1.1.1[40055]
Apr 03 20:19:07 dut-3 systemd[1]: Created slice system-systemd\x2dcoredump.slice - Slice /system/systemd-coredump.
Apr 03 20:19:07 dut-3 systemd[1]: Started [email protected] - Process Core Dump (PID 276426/UID 0).
Apr 03 20:19:07 dut-3 systemd[1]: systemd-udevd.service: State 'stop-watchdog' timed out. Killing.
Apr 03 20:19:07 dut-3 systemd[1]: systemd-udevd.service: Killing process 1546 (systemd-udevd) with signal SIGKILL.
Apr 03 20:19:07 dut-3 systemd[1]: Started [email protected] - Process Core Dump (PID 276430/UID 0).
...
Apr 03 20:19:07 dut-3 systemd[1]: systemd-journald.service: Failed with result 'watchdog'.
...
Apr 03 20:17:00 dut-3 systemd[1]: systemd-udevd.service: Watchdog timeout (limit 3min)!
在嘗試調試崩潰時，我想知道崩潰是由於看門狗超時還是由於崩潰而發生看門狗超時。具體來說，systemd-udevd.service 崩潰並且無法向看門狗發送訊息。