[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
** Changed in: canonical-devices-system-image Milestone: 12 => backlog -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
Thinking about this more, we can get the status code that is returned by the utility. If we wanted to return a custom status code for "delete the QML cache" we could do that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
** Changed in: canonical-devices-system-image Milestone: None => 12 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
The UAL signal for failing on starting would only be before the process starts executing. So basically everything up to passing off to the Exec line in the desktop file. After that we pretty much lose track of the process. So I don't think that UAL can really be used to tell whether the app failed because of a corrupt cache or not since it wouldn't be known until the Qt parts start executing. ** Changed in: ubuntu-app-launch (Ubuntu) Importance: Undecided => Medium ** Changed in: ubuntu-app-launch (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
of course! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
Sure, I'm not saying there isn't a problem in the cache, just saying the user doesn't care - and we should do everything in our power to get the app to start again. IMO that's orthogonal to the fact that we need to investigate how the QML cache gets corrupted. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
My fear is that by cleaning the cache every crash we're just postponing assigning someone to actually fixing the QML cache problems :/ (of course, as you say, it may be that it's not the QML cache at fault, but we know that there's something wrong going on there almost for sure, right? so many bug reports with the same fix) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
That's assuming the QML cache is at fault in the first place - if the app just crashes on its own accord, clearing the cache or not doesn't really matter. Thing is, in case the cache is corrupt, but the app is dynamic - it will start but then crash after the user opened some new page with a new qml file - and there's no way other than upgrading the app that this will get better. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
Well, if we get a report of the crash through errors.u.c, maybe not? Better for the app to start next time or not? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
Wouldn't clearing the cache at every crash just hide the problem under the carpet? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: ubuntu-app-launch (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
It's also possible that u-a-l doesn't give qtmir notice that the app indeed failed to start. I don't think we're clearing the cache on *any* crash, just on startup - maybe we need to be more aggressive with that. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
** Changed in: canonical-devices-system-image Status: Triaged => Confirmed ** Changed in: canonical-devices-system-image Milestone: 11 => None -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
** Changed in: canonical-devices-system-image Assignee: kevin gunn (kgunn72) => Michał Sawicz (saviq) ** Changed in: canonical-devices-system-image Milestone: None => 11 ** Changed in: canonical-devices-system-image Status: Confirmed => Triaged ** Changed in: qtmir (Ubuntu) Status: Confirmed => Triaged -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
** Also affects: ubuntu-app-launch (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
I just duped over a number of these reports, clearly we are not properly removing the cache when the app fails to start. ** No longer affects: ubuntu-app-launch (Ubuntu) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: qtmir (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: ubuntu-app-launch (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
QtMir has code that should delete the cache, if the app stops unexpectedly (i.e. probably crashed). The QML cache system also does a CRC check on the cache file, to check it before using it. So the file being munged unexpectedly should not be a fatal condition. Instead, if the app is itself corrupting the cache somehow, it would be good to know why. Certainly if the app crashes on startup while reading its cache, QtMir should delete the cache so the next execution will succeed. Would be worth verifying this is functioning as expected. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1560020] Re: Corrupt QML cache - Apps Fail to start
I'll make a suggestion here to get some comments, but it seems to me there's 2 threads to chase 1) actually figure out why the cache is getting corrupted 2) create some detection as part of the launch (ual? or qtmir?) to determine if there are issues and then delete the cache & make a second launch attempt ** Also affects: qtmir (Ubuntu) Importance: Undecided Status: New ** Changed in: qtmir (Ubuntu) Assignee: (unassigned) => Nick Dedekind (nick-dedekind) ** Also affects: ubuntu-app-launch (Ubuntu) Importance: Undecided Status: New ** Changed in: ubuntu-app-launch (Ubuntu) Assignee: (unassigned) => Ted Gould (ted) ** Changed in: qtmir (Ubuntu) Importance: Undecided => High ** Changed in: ubuntu-app-launch (Ubuntu) Importance: Undecided => High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1560020 Title: Corrupt QML cache - Apps Fail to start To manage notifications about this bug go to: https://bugs.launchpad.net/canonical-devices-system-image/+bug/1560020/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
