please upgrade 14.04 with the 8.1.2c+dfsg-5 version

[Picca Frederic-Emmanuel]

[Impact]

 * It is not possible to use the event part of pytango. Only the polling part was working correctly.

 * all the depending packages (python-taurus and python-sardana) are unusable without this fix (they rely on the event part)

[Test Case]

This is took from the zeromq3 initial bug report (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=743508)

this bug can be seens using the python-binding.
But for htis you need a working tango database. So you need to install tango-db.

apt-get install mysql-server
apt-get install tango-db

~$ python
import PyTango
dev_name = 'sys/database/2'
dev = PyTango.DeviceProxy(dev_name)
cb = PyTango.utils.EventCallBack()
id = dev.subscribe_event("state", PyTango.EventType.CHANGE_EVENT, cb, [], True)

(waits forever... till I press CTRL+C)

the expected result is that the last line does not hang

[Regression Potential]

 * no known regression.

 * in case of a regression only two packages can be affected (python-taurus and python-sardana)

[Picca Frederic-Emmanuel (picca-debian)]

I generated the source package with this command

backportpackage -s utopic -d trusty -w . tango

and then the debdiff with

debdiff tango_8.1.2c+dfsg-5.dsc tango_8.1.2c+dfsg-5~ubuntu14.04.1.dsc > tango_8.1.2c+dfsg-5~ubuntu14.04.1.debdiff

hope it is ok

[Ubuntu Foundations Team Bug Bot (crichton)]

The attachment "tango_8.1.2c+dfsg-5~ubuntu14.04.1.debdiff" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.]

[Picca Frederic-Emmanuel (picca-debian)]

ok the patches fixed the hang but I get: 2014-08-11 20:19:37.923333 SYS/DATABASE/2 STATE CHANGE [API_AttributePollingNotStarted] The polling (necessary to send events) for the attribute state is not started

[Julian Taylor (jtaylor)]

I have uploaded above debdiff which fixes the hang in the testcase

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Chris J Arges (arges)]

Hello Picca, or anyone else affected,

Accepted tango into trusty-proposed. The package will build now and be available at http://launchpad.net/ubuntu/+source/tango/8.1.2c+dfsg-3ubuntu0.1 in a few hours, and then in the -proposed repository.

Please help us by testing this new package. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug, mentioning the version of the package you tested, and change the tag from verification-needed to verification-done. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed. In either case, details of your testing will help us make a better decision.

Further information regarding the verification process can be found at https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in advance!

[Tomaz Beltram (tomazb)]

I have added the trusty-proposed repository and upgraded libtango packages. The new package fixes the problem I reported in duplicate bugID #1355778.

deb http://archive.ubuntu.com/ubuntu/ trusty-proposed restricted main multiverse universe

$ dpkg -l | grep libtango
ii libtango8:amd64 8.1.2c+dfsg-3ubuntu0.1 amd64 TANGO distributed control system - shared library
ii libtango8-dev:amd64 8.1.2c+dfsg-3ubuntu0.1 amd64 TANGO distributed control system - development library

[Colin Watson (cjwatson)]

The verification of the Stable Release Update for tango has completed successfully and the package has now been released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

[Launchpad Janitor (janitor)]

This bug was fixed in the package tango - 8.1.2c+dfsg-3ubuntu0.1

---------------
tango (8.1.2c+dfsg-3ubuntu0.1) trusty-proposed; urgency=medium

  * 0007-fix-upstream-p812_3.patch, 0008-fix-upstream-p812_4.patch:
    patches from debian to fix incompatibility with zeromq 4 (LP: #1355394)
 -- Julian Taylor <email address hidden> Mon, 11 Aug 2014 21:48:19 +0200