My opinion is that all those failures where probably there already since the ones i've been able to find/replicate don't seem qdbus related
Now why is this happening with these patches? These patches make qdbus serialize much less on the main thread, i.e. things are executed more in different threads, this decreases the points of sincronization qdbus caused on the main thread without these patches and so threads run more "freely" This can make this that were previously race hit the races and thus cause the autopilot tests to randomly fail or not depending if the race is fixed or not Now i can't say that none of these failures are qdbus related since i've not been able to reproduce them all, would need help from the people with expertise on those particular apps to have a look at them. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to autopilot in Ubuntu. https://bugs.launchpad.net/bugs/1421009 Title: unity8 sometimes hangs on boot Status in autopilot package in Ubuntu: New Status in libusermetrics package in Ubuntu: Incomplete Status in qtbase-opensource-src package in Ubuntu: Incomplete Status in unity8 package in Ubuntu: Invalid Bug description: The following gdbus call is failing with a "Error: Timeout was reached" message: gdbus call --session --dest com.canonical.UnityGreeter --object-path / --method org.freedesktop.DBus.Properties.Get com.canonical.UnityGreeter IsActive This is being seen on krillin devices starting with image 106 from ubuntu-touch/devel-proposed. It doesn't happen every time, so far today, I've seen it 3 times from about 12 tests. On the most recent failure, I grabbed a console and tried repeatedly to run the command from the shell, even after 2 hours the timeout was still being returned (after about 28 seconds). A copy of ~/.cache/upstart/unity8.log is here: http://paste.ubuntu.com/10179482/ I have 3 test cases where the problem was observed: http://d-jenkins.ubuntu-ci:8080/job/vivid-boottest-qtchooser/1/console http://d-jenkins.ubuntu-ci:8080/job/vivid-boottest-gsettings-ubuntu-touch-schemas/1/console http://d-jenkins.ubuntu-ci:8080/job/fjg-boottest/3/console In all cases, the test is using adt-run (from autopkgtest) to drive a test on the phone device. adt-run uses the above gdbus call to determine if the desktop is active. In all the examples, the device was freshly flashed. --- Timeline/Updates: 2015-02-20: libusermetrics lands, causing (apparently) this boot problem to start happening rarely. http://people.canonical.com/~ogra/touch-image-stats/106.changes / http://launchpadlibrarian.net/198152771/libusermetrics_1.1.1%2B14.10.20141020-0ubuntu1_1.1.1%2B15.04.20150219-0ubuntu1.diff.gz ”I got a symbolic trace out of all the threads. It seems to be a dbus lock between usermetrics and networkmanager bits. We suspect a relation to QTBUG https://bugreports.qt.io/browse/QTBUG-44836.” 2015-03-25: qtbase dbus update to support threads (instead of one main thread) in PPA 018 fixes the boot issue, but autopilot test suites start failing randomly. 2015-03-27: an autopilot fix fixes a simple test case, and seems to fix UITK suite as a whole, but on krillin only Currently mako still fails a lot of tests when the silo is enabled. The nature of failures is random (different tests fail on each run). To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/autopilot/+bug/1421009/+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
