[Freeswitch-users] Forward and Reverse Clock Skew Detected

terry at digital-outpost.com terry at digital-outpost.com
Sat Aug 2 06:08:08 MSD 2014

Out of curiosity I checked my FreeSWITCH logs and since April 6 there 
have been 66 occurrences of the Reverse Clock Skew Detected message and 
22 of Forward Clock Skew Detected.

2014-07-31 11:24:21.023302 [CRIT] switch_time.c:1091 Reverse Clock Skew 
2014-07-31 11:24:21.023302 [CRIT] switch_time.c:1104 If you see this 
message many times consider a nicer machine to run me on. I AM *FREE* 
after all.

The machine is a 2.3GHz i7 Mac mini with 8GB RAM running 10.9.4 and is 
basically 95-99% idle. The only thing it's running is FreeSWITCH for 
home--two extensions and two DIDs. There's no pattern I can see when the 
skew messages occur. Usually once every 1-3 days, but infrequently it 
can be 2-3 times per day. Monotonic clock issue? Anything to do about 

FreeSWITCH Version 1.4.6+git~20140603T193516Z~9479729340~64bit (git 
9479729 2014-06-03 19:35:16Z 64bit)


Join us at ClueCon 2016 Aug 8-12, 2016
More information about the FreeSWITCH-users mailing list