** Changed in: media-hub
Status: In Progress = Fix Released
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Title:
A stress test for the issue:
http://pastebin.ubuntu.com/8423451
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Title:
** Tags added: rtm14 touch-2014-09-25
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** Tags added: lt-blocker
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** Changed in: media-hub
Status: New = In Progress
** Changed in: media-hub
Assignee: (unassigned) = Alberto Aguirre (albaguirre)
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@Gerry, you are right, it's hanging in android. It looks like it's
waiting for the binder response to a registerSession call initiated by
decoding_service_create_session. I wonder why there's no response
http://pastebin.ubuntu.com/8421608/
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It looks like media-hub exhausted all the binder threads, they are all stuck in
core::Signal::~Signal() called from
core::ubuntu::media::PlayerImplementation::~PlayerImplementation()
http://pastebin.ubuntu.com/8421674/
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Ok so the issue is the ~Signal() is being called from withing the Signal
executor...so recursively acquiring the same lock.
An async execution of the code that ends up deleting the
PlayerImplentation solves that issue and avoids hangs in the unity8
autopilot tests.
There's still an issue where
** Branch linked: lp:~albaguirre/media-hub/fix-1371454
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** Tags removed: lt-category-novisible
** Tags added: lt-category-noimpact
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So it seems it is the core GStreamer library upgrade that broke it then.
We'll need to look at the diff between the last version we had and this
one to try to narrow down what broke things.
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did anyone try to downgrade to the former gstreamer1.0-plugins-base
version yet ?
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** Tags removed: rtm14
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unity8.indicators.tests.test_indicators.IndicatorExistsTestCase.test_indicator_exists
** Tags added: lt-age-20140922 lt-category-novisible lt-prio-high
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Ok, downloaded and manually installed the deb from here for gstreamer
https://launchpad.net/ubuntu/utopic/armhf/libgstreamer1.0-0/1.4.0-1
Did this on today's devel-proposed image on N4, and unity8 still hung.
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or rather, unity8 AP test still hung eventually using
https://launchpad.net/ubuntu/utopic/armhf/libgstreamer1.0-0/1.4.0-1
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so i tried again, only this time i downgraded gstreamer a bit further to
https://launchpad.net/ubuntu/utopic/armhf/libgstreamer1.0-0/1.2.4-1
and this time unity8 AP testing passed
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ok this is definitely media-hub
I started with #235
running unity8 AP each time
upgraded/installed... one at a time
1) libmedia-hub-client2 libmedia-hub-common2 - passed
2) libdbus-cpp4 - passed
3) media-hub - failedgot stuck
as the packages are not maintained for the intermediate
ok, so for devel-proposed. I've at least determined this happened
between image #235 (where AP would run to completion) image #237
(where is hangs). Worth noting, #136 impossible to work with, can't get
adb to recognize the device no matter what.
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so greyback had investigated too, understanding we chatted with jhodapp and
thinks it's in media-hub or lower.
marking this as critical b/c this is blocking people from running unity8-ap
tests locally to ok landings.
** Also affects: media-hub
Importance: Undecided
Status: New
**
Introspect error on :1.391:/com/canonical/Autopilot/Introspection:
dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Did
not receive a reply.
This nearly always means the application under test has either crashed
or has hung.
Digging, I found that indeed unity8 is handing.
worth noting, this was working last week
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if there was a new media-hub landing, then guess that might be a good
candidate to try backing out locally and see if that helps.
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can you nail down a regression window by image and maybe even package?
This would help finding the cause I guess...
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we see a similar error in utopic smoke tests since a while, these do not
show up in rtm image tests at all. paul nailed down the first image
where it started to show up in smoke testing to
http://people.canonical.com/~ogra/touch-image-stats/233.changes ...
the adbd and system-settings packages on
GStreamer is obviously very heavily used by media-hub, so I'd recommend
trying to downgrade gstreamer first.
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