Thanks Dave for this info. Also, I checked with Dave on IRC that PID
2522 (from which the request starts) is account-polld:
phablet 2522 0.0 1.4 934112 14176 ? Ssl Sep09 9:38
/usr/bin/account-polld
online-accounts-service tries to create a trusted session having PID 2522 as
initiatior, but since account-polld has no window associated with it, mir
cannot create the trust session.
I think there are two problems here:
1) when talking to signond, account-polld should set the "UiPolicy" parameter
to 2 (aka NoUserInteractionPolicy), so that we won't try to open a trust
session for it.
2) account-polld should not continuosly retry authenticating if the previous
attempt just failed.
** No longer affects: sync-monitor (Ubuntu)
** Also affects: account-polld (Ubuntu)
Importance: Undecided
Status: New
** No longer affects: ubuntu-system-settings-online-accounts (Ubuntu)
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online-accounts in Ubuntu.
https://bugs.launchpad.net/bugs/1496773
Title:
Dbus-daemon-system-fork on ota6 is using large amounts of CPU
Status in Canonical System Image:
New
Status in account-polld package in Ubuntu:
New
Bug description:
STEPS:
1. Install ota6
2. Use the phone as a phone don't let it run out of battery power
3. Uptime for me nearly 8 days and the system become unusable
EXPECTED:
I expect the system to always run smoothly with 0 apps open
ACTUAL:
Tapping the power button to wake the device seemingly does nothing, Tap it
again and the welcome screen appears and disappears. Tap it again and it
appears as normal, Start using apps, the apps will suddenly stall (Note not
crash just stall).
RESULTS:
I opened up top
User message+ dbus-daemon-system-fork is bouncing from 2.4% cpu, to 40-60%
cpu, to 98-102% cpu. This is the only high cpu utilising app after an hour
watching.
Memory on device is at a minimum too. As can be seen here
http://paste.ubuntu.com/12436034/ this system has no app open.
Logs: I have included the entire .cache/upstart folder and syslog.
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