Server hung with message "Clock: inserting leap second 23:59:60 "

Solution Unverified - Updated -

Issue

  • Two Production Servers frequently gets hung and inaccessible.
console during that time, around Jul 15 06:53 to 7:10 AM CDT. 
login: Clock: inserting leap second 23:59:60 UTC
time.c: can't update CMOS clock from 58 to 1
time.c: can't update CMOS clock from 56 to 0

Environment

  • Red Hat Enterprise Linux 5

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