I figured it out by attaching to the process with gdb and doing a backtrace. Apparently my wtmp and btmp files got full from devices doing remote logins on a regular basis. I became suspicious that there was something particular to what I was doing based on how few people were affected by this. Here is the size of my files:
-rw-rw---- 1 root utmp 7160832 Nov 24 21:23 /var/log/btmp -rw-rw-r-- 1 root utmp 116148480 Nov 25 22:39 /var/log/wtmp I need to have a cleanup job for these files anyway illregardless of what the accounts-daemon does but it may help if the accounts-deamon does not process the while file if possible. I have not looked into what accounts-deamon does with the files so I am not sure if it is feasable just to look at the end of the files instead of the whole file. Even with truncating the files accounts-deamon seems to be too much of a busy body but for now at least the %CPU is below 1% on average but I do see it peak at times to 10%. The polkitd now shows up at the top more than accounts-deamon, from the threads on this I beleive that deamon is part of the same processing. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to accountsservice in Ubuntu. https://bugs.launchpad.net/bugs/1316830 Title: /usr/lib/accountsservice/accounts-daemon :: memory and CPU time leak Status in “accountsservice” package in Ubuntu: Confirmed Bug description: netikras@netikras-netbook ~/received/accountsservice-0.6.20 $ cat /etc/lsb-release DISTRIB_ID=LinuxMint DISTRIB_RELEASE=16 DISTRIB_CODENAME=petra DISTRIB_DESCRIPTION="Linux Mint 16 Petra" uname -a Linux netikras-netbook 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:12:00 UTC 2013 i686 i686 i686 GNU/Linux Nothing. Using my netbook as usual. Did not really notice when this started since earlier today did not feel any significant slowdowns. That's what happened: PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 13155 root 20 0 61424 25m 2948 R 99,6 1,3 1:06.01 accounts-daemon netikras@netikras-netbook /tmp $ while :; do ps aux | grep accounts|grep -v grep;echo; sleep 2; done root 13155 93.6 26.1 555660 519912 pts/0 Sl 01:11 3:15 /usr/lib/accountsservice/accounts-daemon root 13155 92.7 26.1 555660 519912 pts/0 Sl 01:11 3:15 /usr/lib/accountsservice/accounts-daemon root 13155 91.9 26.1 555660 519912 pts/0 Sl 01:11 3:15 /usr/lib/accountsservice/accounts-daemon accounts-daemon is using lots o CPU cycles and memory. Stats above are after restarting daemon for several times. Before this memory usage was >60%; CPU - 100%. In file attached you should be able to see there's a loop checking for something repeatedly. Not sure this is the cause though, but feels like it.. It's the first time I've noticed this problem, but I often leave my computer running unattended so I cannot tell if it's really the first time it happened. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/accountsservice/+bug/1316830/+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
