Bug 426963

From the trace presumably

            Q_ASSERT_X(success, "Uils::exec", qPrintable(QStringLiteral("Query failed:") + query.lastError().text()));


Reading the code non debug builds should fail gracefully, so this is relatively low priority.

I would guess it's a corrupt database, but I thought there was now some protection against that?

(In reply to David Edmundson from comment #1)
> Reading the code non debug builds should fail gracefully, so this is
> relatively low priority.

What do you mean by "fail gracefully"? I got the same crash notifications using the non debug build from the Arch repo. I don't notice anything failing after those crashes but it is a bit annoying having those notifications every few minutes.

Can you start kactivitymanagerd from shell and post the output here?

(In reply to Ivan Čukić from comment #3)
> Can you start kactivitymanagerd from shell and post the output here?

And how can I do that? I only see kactivities-cli in /usr/bin, not kactivitymanagerd

> And how can I do that? I only see kactivities-cli in /usr/bin, not kactivitymanagerd

Confirmed on 5.19.90 as well, under Arch Linux. It happens when starting up Chromium.

You can start kactivitymanagerd manually by doing:
> killall kactivitymanagerd; /usr/lib/kactivitymanagerd

The output for me is:

```
org.kde.kactivities.resources: "INSERT INTO ResourceEvent        (usedActivity,  initiatingAgent,  targettedResource,  start,  end) VALUES (:usedActivity, :initiatingAgent, :targettedResource, :start, :end)"
org.kde.kactivities.resources: QSqlError("11", "Unable to fetch row", "database disk image is malformed")
org.kde.kactivities.resources: "SELECT start, end FROM ResourceEvent WHERE :usedActivity      = usedActivity AND :initiatingAgent   = initiatingAgent AND :targettedResource = targettedResource AND start > :start ORDER BY start ASC"
org.kde.kactivities.resources: QSqlError("11", "Unable to fetch row", "database disk image is malformed")
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = kactivitymanagerd path = /usr/lib pid = 268951
KCrash: Arguments: /usr/lib/kactivitymanagerd 
KCrash: Attempting to start /usr/lib/drkonqi
```

Thanks.

Seems that database disk corruption can be exposed randomly during work.

KAMD performs some tests on startup and restores the last database known to work. But it does not cover these errors.

Will see how to handle these.

Created attachment 132325 [details]
crash browsing categories in systemsettings

After upgrading KDE neon User Edition to Plasma 5.20, kactivitymanagerd crashes constantly on my system. Open Dolphin: crash. Browse through System Settings: crash, crash, crash. I have attached the backtrace here. Anybody know a workaround for this?

I was able to stop the crashes by deleting the ~/.local/kactivitymanagerd folder. Then I just had to recreate my favorites in the application launcher.

https://bugs.kde.org/show_bug.cgi?id=427650#c1

that patch fixed it for me

I didn't have this issue again. You can close the bug.