40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  40m Log  Not logged in ELOG logo
Entry  Thu Sep 2 19:28:02 2021, Koji, Update, , This week's FB1 GPS Timing Issue Solved 
    Reply  Thu Sep 2 19:47:38 2021, Koji, Update, CDS, This week's FB1 GPS Timing Issue Solved 
       Reply  Thu Sep 2 20:44:18 2021, Koji, Update, CDS, Chiara DHCP restarted 
          Reply  Thu Sep 2 20:47:19 2021, Koji, Update, CDS, Chiara DHCP restarted 
Message ID: 16308     Entry time: Thu Sep 2 19:28:02 2021     Reply to this: 16309
Author: Koji 
Type: Update 
Category:  
Subject: This week's FB1 GPS Timing Issue Solved 

After the disk system trouble, we could not make the RTS running at the nominal state. A part of the troubleshoot FB1 was rebooted. But the we found that the GPS time was a year off from the current time

controls@fb1:/diskless/root/etc 0$ cat /proc/gps 
1283046156.91
controls@fb1:/diskless/root/etc 0$ date
Thu Sep  2 18:43:02 PDT 2021
controls@fb1:/diskless/root/etc 0$ timedatectl 
      Local time: Thu 2021-09-02 18:43:08 PDT
  Universal time: Fri 2021-09-03 01:43:08 UTC
        RTC time: Fri 2021-09-03 01:43:08
       Time zone: America/Los_Angeles (PDT, -0700)
     NTP enabled: no
NTP synchronized: yes
 RTC in local TZ: no
      DST active: yes
 Last DST change: DST began at
                  Sun 2021-03-14 01:59:59 PST
                  Sun 2021-03-14 03:00:00 PDT
 Next DST change: DST ends (the clock jumps one hour backwards) at
                  Sun 2021-11-07 01:59:59 PDT
                  Sun 2021-11-07 01:00:00 PST


Paco went through the process described in Jamie's elog [40m ELOG 16299] (except for the installation part) and it actually made the GPS time even strange

controls@fb1:~ 0$ cat /proc/gps
967861610.89

I decided to remove the gpstime module and then load it again. This made the gps time back to normal again.

controls@fb1:~ 0$ sudo modprobe -r gpstime
controls@fb1:~ 0$ cat /proc/gps
cat: /proc/gps: No such file or directory
controls@fb1:~ 1$ sudo modprobe gpstime
controls@fb1:~ 0$ cat /proc/gps
1314671254.11

 

ELOG V3.1.3-