Successfully tested appstream 0.12.0-3ubuntu1 from bionic-proposed in an up-to-date bionic VM, and I can confirm the issue is fixed.
** Tags removed: verification-needed-bionic ** Tags added: verification-done-bionic -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to appstream in Ubuntu. https://bugs.launchpad.net/bugs/1792537 Title: /usr/bin/appstreamcli:5:g_variant_new_parsed_va:g_variant_builder_add_parsed:as_content_rating_to_variant:as_component_to_variant:as_cache_file_save Status in appstream package in Ubuntu: Fix Released Status in appstream source package in Bionic: Fix Committed Bug description: The Ubuntu Error Tracker has been receiving reports about a problem regarding appstream. This problem was most recently seen with package version 0.12.2-2, the problem page at https://errors.ubuntu.com/problem/fca706c9b229ddb2bae3fa59877eee4f98f69366 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports. If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/. This crash happens when trying to upgrade a fully up-to-date bionic machine to cosmic. appstreamcli crashes with the following error, thus aborting the upgrade process: E:Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/cache/app-info -a -e /usr/bin/appstreamcli; then appstreamcli refresh-cache > /dev/null; fi', E:Sub-process retrened an error code [Impact] * As of today, users upgrading from bionic to cosmic will see the upgrade process abort early on because of this crash. This is most likely caused by malformed appstream metadata, so the issue might go away if that metadata is fixed at some point. In the meantime, this completely prevents bionic→cosmic upgrades. * The fix is upstream (https://github.com/ximion/appstream/commit/734e9da66bf12fcaa94c10465db2dcf8bb2b94cb) and in the cosmic version of appstream [Test Case] 1. On a fresh bionic installation, change bionic to cosmic in sources.list 2. Run apt update This use case happens when the user does a release upgrade. [Regression potential] This patch affects the way appstream metadata is parsed to build a representation in memory. Potential regressions may happen if the parser is fed invalid/malformed metadata with unexpected types. That's actually the cause of the crash itself, so we cannot assume that it won't happen again with differently malformed metadata. There doesn't appear to be specific tests associated to that crash in the upstream commit that fixes it, so there's no guarantee it won't regress in the future. [Other Info] According to errors.ubuntu.com the crash still happens in cosmic with appstream 0.12.2-2, which would imply that the patch does not fix all occurrences of the problem. However according to Laney this data is not always accurate, sometimes crashes which happen around an upgrade are reported against the new version mistakenly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/appstream/+bug/1792537/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
