Inconsistent timestamp from "dmesg -T"

Solution Verified - Updated -

Issue

  • When converting dmesg output to a timestamp, it may be significantly inconsistent with when the kernel message actually happened
  • Timestamp Difference in dmesg -T and /var/log/messages

Environment

  • Red Hat Enterprise Linux (RHEL)
  • dmesg from util-linux package
  • /var/log/messages written by rsyslog
  • Other timestamped log source such as the systemd journal with journalctl

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