Gedare Bloom commented on a discussion: 
https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/282#note_114795


He added a patch ("record: Use only related uptime low/high events") that I 
Assumed fixed that corner case. It appears to be a low/high timer read sync 
issue where the High is read during an overflow. He added a simple 1-bit state 
machine to make sure the High is only read if the Low was also read since the 
previous read of High.

-- 
View it on GitLab: 
https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/282#note_114795
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