Hi,
Your log ends with
systemd-journald.service: Got notification message from PID 753 (WATCHDOG=1)
systemd-udevd.service: Got notification message from PID 782 (WATCHDOG=1)
Could it be related to the watchdog?
In a different thread there was a link to the watchdog configuration; maybe increasing the timeout might help? Are you certain the hardware (not software) watchdog is properly cleared?
The original thread was about a raspberry pi; you may need to look around and twiddle some things to handle the i.MX hardware watchdog.