So the interesting part is: "terminate called without an active exception". This usually means a thread was terminated without join(). Looking at a stack trace of the seemingly duplicate bug (Bug #1432725), looks like that just may be the problem:
Stacktrace: #0 0xb6b2c8e6 in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #1 0xb6b3ae5e in raise () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #2 0xb6b3bb4e in abort () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. #3 0xb6c77120 in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 No symbol table info available. #4 0xb6c75950 in ?? () from /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 No symbol table info available. #5 0xb6c759a6 in std::terminate() () from /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 No symbol table info available. #6 0xb6e95eec in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #7 0xb6e97b10 in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #8 0xb6e781a0 in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #9 0xb6ec383a in unity::scopes::ScopeBase::settings() const () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #10 0xb37e1cf4 in MusicAggregatorScope::init_scope_proxies() () from /usr/lib/arm-linux-gnueabihf/unity-scopes/musicaggregator/libmusicaggregator.so No symbol table info available. #11 0xb37e1da4 in MusicAggregatorScope::search(unity::scopes::CannedQuery const&, unity::scopes::SearchMetadata const&) () from /usr/lib/arm-linux-gnueabihf/unity-scopes/musicaggregator/libmusicaggregator.so No symbol table info available. #12 0xb6e8c54c in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #13 0xb6e8ae40 in unity::scopes::internal::ScopeObject::query(std::shared_ptr<unity::scopes::internal::MWReply> const&, unity::scopes::internal::MiddlewareBase*, std::string const&, std::function<std::shared_ptr<unity::scopes::QueryBase> ()> const&, std::function<std::shared_ptr<unity::scopes::internal::QueryObjectBase> (std::shared_ptr<unity::scopes::QueryBase>, std::shared_ptr<unity::scopes::internal::MWQueryCtrl>)> const&) () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #14 0xb6e8bf80 in unity::scopes::internal::ScopeObject::search(unity::scopes::CannedQuery const&, unity::scopes::SearchMetadata const&, std::map<std::string, unity::scopes::Variant, std::less<std::string>, std::allocator<std::pair<std::string const, unity::scopes::Variant> > > const&, std::shared_ptr<unity::scopes::internal::MWReply> const&, unity::scopes::internal::InvokeInfo const&) () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #15 0xb6dee036 in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #16 0xb6df0da8 in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #17 0xb6df0e44 in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #18 0xb6de6f8e in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #19 0xb6de7962 in ?? () from /usr/lib/arm-linux-gnueabihf/libunity-scopes.so.3 No symbol table info available. #20 0xb6cb42a0 in ?? () from /usr/lib/arm-linux-gnueabihf/libstdc++.so.6 No symbol table info available. #21 0xb6d15fa0 in start_thread () from /lib/arm-linux-gnueabihf/libpthread.so.0 No symbol table info available. #22 0xb6ba7b5c in ?? () from /lib/arm-linux-gnueabihf/libc.so.6 No symbol table info available. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unity-scopes-shell in Ubuntu. https://bugs.launchpad.net/bugs/1430918 Title: Enable/disable child scopes error Status in The Savilerow project: New Status in unity-scopes-api package in Ubuntu: Confirmed Status in unity-scopes-shell package in Ubuntu: Confirmed Bug description: Enabling and disabling child scopes from settings in an agg scope often causes an error that results in blank display that is sometimes difficult to recover from. For example, l launched the Music scope, then disabled 7 digital from settings, then enabled it. I got the following in log: phablet@ubuntu-phablet:~$ tail -F .cache/upstart/scope-registry.log Failed to get proxy for scope com.ubuntu.scopes.soundcloud_soundcloud Failed to get proxy for scope com.canonical.scopes.songkick_songkick aa_getcon failed, errno = 13 YouTube scope is unauthenticated YouTube scope is unauthenticated Failed to get proxy for scope com.ubuntu.scopes.soundcloud_soundcloud Failed to get proxy for scope com.canonical.scopes.songkick_songkick YouTube scope is unauthenticated YouTube scope is unauthenticated terminate called without an active exception I have seen this same thing with other agg scopes. phablet@ubuntu-phablet:~$ system-image-cli -i current build number: 127 device name: krillin channel: ubuntu-touch/vivid-proposed last update: 2015-03-10 22:34:24 version version: 127 version ubuntu: 20150228 version device: 20150210-95b6a9f version custom: 20150228 To manage notifications about this bug go to: https://bugs.launchpad.net/savilerow/+bug/1430918/+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