[kmail2] [Bug 388170] New: Often in kmail the information bar shows a hanging message about synchronizing the trash folder of a specific IMAP account

[Freek de Kruijf]

https://bugs.kde.org/show_bug.cgi?id=388170

            Bug ID: 388170
           Summary: Often in kmail the information bar shows a hanging
                    message about synchronizing the trash folder of a
                    specific IMAP account
           Product: kmail2
           Version: 5.7.0
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: freekdekruijf at kde.nl
  Target Milestone: ---

I have quite large IMAP account on a server with dovecot (~12000 messages) .
After starting kontact/kmail and after a while the information bar at the
bottom of the window shows a message indicating that the trash folder of that
IMAP account is being synchronized. The progress shown is not 100%, it varies,
but it does not change anymore. A click on the arrow to show more info shows
only the progress bar of synchronizing the trash folder of that particular IMAP
account at 100%. However it stays that way.
I tried command "akonadictl fsck", which sometimes shows irregular things, but
a second time, these are gone.
Currently "akonadictl vacuum" hangs after showing "optimizing table
CollectionTable..."
Also kontact/kmail does not show new messages. It shows turning dots in front
of the inbox.
After quite a while I give the command "akonadictl stop", which sometimes shows
a bug report, but even after installing the requested debug package, it shows a
that the bug report is not usable. akonadiserver crashed with a Segmentation
fault (11). Now akonadi vacuum continues but hangs in "optimizing table
PartTable...". "akonadictl status" shows "stopped".
The bApplication: akonadiserver (5.7.0)

Qt Version: 5.9.3
Frameworks Version: 5.40.0
Operating System: Linux 4.14.6-1-default x86_64
Distribution: "openSUSE Tumbleweed"

-- Information about the crash:
<Vertel ons in detail wat u aan het doen was toen het programma crashte.>

The crash can be reproduced every time.

-- Backtrace:
A useful backtrace could not be generatedug report is:

akonadictl vacuum still hangs.
In kmail I can start akonadi again and things look normal apart from the
message in the messages bar where only the filter agent hangs.
After deleting some messages in the inbox of that IMAP acount I have the
situation back where the message bar shows 59% progress, but clicking the arrow
on that bar shows 100% progress on synchronizing the trash folder. The number
of messages in the trash folder is not updated after deleting the messages in
the inbox.

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