[Akonadi] [Bug 331748] New: Kmail/akonadi bug produces thousands of copies of previously mails in Local folder outbox

[Andreas]

https://bugs.kde.org/show_bug.cgi?id=331748

            Bug ID: 331748
           Summary: Kmail/akonadi bug produces thousands of copies of
                    previously mails in Local folder outbox
    Classification: Unclassified
           Product: Akonadi
           Version: 4.12
          Platform: Ubuntu Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: major
          Priority: NOR
         Component: Archive Mail Agent
          Assignee: kdepim-bugs at kde.org
          Reporter: hohenegger at web.de

Since recent update to kde 4.12.2 akonadi fills my Local folder outbox with
thousands of copies of the previously sent mail whenever I restart. In fact it
does not seem to stop anywhere. CPU usage and memory uses is going up (due to
kmail and akonadi_*). I have a configuration with multiple different akonadi
resources. Local mbox and new Kmail format local folders (this outbox is the
one which gets populated) and a few imap mail boxes. Akonadi created about
20'000 visible messages in the outbox before the system started to get slow.
The only way I found to escape a system crash was deleting with (Ctrl+A) and
(Shift+Del) all the messages akonadi produces. I did this repeatedly and faster
than new messages were produced until the outbox was eventually empty. The
third time I encountered the bug I also did 'find . -name "*" -print0 | xargs
-0 rm' in  '~/.local/share/local-mail/outbox/new' (rm * did not work anymore
because there were too many items). I do not know if this would be sufficient
however.
I am aware that the amount of information I can provide is probably not
sufficient to debug this.
However the bug, in my opinion, is that akonadi is capable in principle of
creating so many messages at a time at all. Just consider the situation in
which I sent a mail to my boss, then I restart and I am connected to the
internet when the system comes up, I don't watch it and the messages actually
get send (before my system crashes do to missing memory and disk space). It
will be hard to explain that I did not send the messages intentionally.

Reproducible: Always

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