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-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to rsyslog in Ubuntu. https://bugs.launchpad.net/bugs/1429427 Title: Unexplainable time jumps in CRON Status in rsyslog package in Ubuntu: Fix Released Status in rsyslog source package in Trusty: Fix Released Bug description: [Impact] on Trusty logging to syslog via cron causes timestamp abnormals after several hours. [Test Case] 1. run below first, while true ; do logger "hello syslog" ; sleep 1; done 2. register below script to crontab for i in {1..100} ; do logger "hello syslog via cron" ; sleep 1; done 3. monitor syslog with below script tail -f -n 100 /var/log/syslog You can see weird timestamp in several hours. [Regression Potential] it's ratelimiting turn off code, could be issue with being off rate- limit [Other Info] below commit fixes this issue in my test From 7a2e2473476d2b10a775affd9ac6c62b81c450e5 Mon Sep 17 00:00:00 2001 From: Tomas Heinrich <thein...@redhat.com> Date: Thu, 24 Jul 2014 13:47:14 +0200 Subject: [PATCH 1/1] bugfix: plug a memleak in imuxsock The hash table for the system socket was allocated twice. The other one being in activateListeners(). This commit practically reverts: 34a77cde2423303da72ab773128a2ddcf41 The issue seems to be that the hash table is not initialized (to NULL) rather then not being allocated. ##################################################################### ## old description On my main server I see unexplainable time jumps backwards in the syslog. Those jumps affect CRON. Example: Feb 10 06:48:01 nostromo CRON[20351]: (root) CMD ( /storage/exec/checkinternet.sh 2>/dev/null 1>/dev/null) Feb 10 06:49:01 nostromo CRON[20364]: (root) CMD ( /storage/exec/checkinternet.sh 2>/dev/null 1>/dev/null) Feb 10 06:50:01 nostromo CRON[20386]: (root) CMD ( /storage/exec/status-nostromo.sh >/dev/null 2>&1) Feb 7 05:40:01 nostromo CRON[20389]: (root) CMD ( /storage/exec/checkinternet.sh 2>/dev/null 1>/dev/null) Feb 10 06:50:01 nostromo CRON[20390]: (root) CMD ( /storage/exec/checkinternet.sh 2>/dev/null 1>/dev/null) Feb 10 06:50:01 nostromo CRON[20391]: (root) CMD ( /storage/exec/checkip.sh 2>/dev/null 1>/dev/null) For debugging I did the following: Start xclock and watch xclock and tail -f /var/log/syslog in parallel. When CRON logged a wrong time, xclock did NOT show any time jump but seemed to freeze for a fraction of a second. Open a screen and start a script that will once per second read the time (in unix seconds) and compare the read time with the time read a second ago. If the current time was smaller, the script would send an email with a process list from before and after the jump. The script also never detected any time jump. In summary, my current impression is that there might be a bug in CRON because no other programm seems to be able to see the "wrong" time. The server in question is syslog server for 4 servers and 3 network devices. The time jumps exclusively show in syslog entries from the local CRON instance. Not in any remote syslog entry and not in any other local syslog entry, e.g. from DHCPD, bind, tftpd, etc. etc. Also, after a reboot, things work ok for several days upto about 2 or 3 weeks. Then the "time jumps" start to occur with increasing frequency. I don't use user crontabs but maintain all jobs in /etc/crontab. I have number of jobs which are triggered every minute and another number of jobs which are triggered every 5 minutes (maybe some CRON internal counter overflow problem?). Hardware: Asus P9D-V Intel Xeon E3-1240L V3 16GB ECC RAM 128GB SSD System 3x3TB ZFS RaidZ2 storage 1x3TB Misc. data CMOS battery already changed and board inspected. nostromo:~ # lsb_release -rd Description: Ubuntu 14.04.2 LTS Release: 14.04 nostromo:~ # apt-cache policy cron cron: Installed: 3.0pl1-124ubuntu2 Candidate: 3.0pl1-124ubuntu2 Version table: *** 3.0pl1-124ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages 100 /var/lib/dpkg/status To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/rsyslog/+bug/1429427/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
