Opening Updates page leads to System Settings crash

[Andrea Bernabei]

Krillin, rc-proposed, r308

I opened Updates page to update the OS. I had app updates available (UI Toolkit gallery, uNav, and one more), I tapped on "Update", the app downloaded the UITK Gallery update but then got stuck at "Installing..."

After a while it was still "Installing" and the Pause/Resume buttons for the other apps were not working, so I closed the system settings app and launched it again.

I believe what happened is that the phone ran out of free space while it was installing the app, and that triggered the bug.

Trying to open the Updates page now leads to an app crash.

System settings log:
http://pastebin.ubuntu.com/15832733/

[Andrea Bernabei (faenil)]

it seems apport did not manage to upload the crash file, even though it created the .uploaded file in /var/crash
apport.log here http://pastebin.ubuntu.com/15834900/

[Andrea Bernabei (faenil)]

Backtrace of all the threads available at
http://pastebin.ubuntu.com/15930183/

(the output of "info threads" is at the bottom)

[Andrea Bernabei (faenil)]

I could not install the dbgsym package as it was not available (in the needed version) anymore, so the stacktrace above is unfortunately missing information

I updated to rc-proposed r315 using system-image-cli and now I can't reproduce the bug anymore

[Jonas G. Drange (jonas-drange)]

System Setting now use the more limited UDM QML API, so it's uncertain if you can trigger this from USS anymore. Marking UDM as affected, and USS as incomplete, as we'll have to try to reproduce it (I haven't been able yet).