Crash on every server stop

[Con Kolivas]

I have a recurring problem where kmail fails to finish updating an imap change after accessing any email with a .ics file attached (calendar invitation). I can fix this by loading akonadiconsole and clearing the akonadi cache and restarting the server; however 100% of the time it crashes when the akonadi server is stopped before it finishes restarting it. Choosing stop server is enough to elicit the crash.

When run from a console, these are the error messages I get:
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Invalid socket 90 and type 'Read', disabling...
QSocketNotifier: Invalid socket 90 and type 'Read', disabling...
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Invalid socket 91 and type 'Read', disabling...
QSocketNotifier: Socket notifiers cannot be enabled or disabled from another thread
QSocketNotifier: Invalid socket 97 and type 'Read', disabling...
QSocketNotifier: Invalid socket 97 and type 'Read', disabling...
QSocketNotifier: Invalid socket 97 and type 'Read', disabling...
QSocketNotifier: Invalid socket 97 and type 'Read', disabling...
QSocketNotifier: Invalid socket 97 and type 'Read', disabling...
QSocketNotifier: Invalid socket 97 and type 'Read', disabling...
QSocketNotifier: Invalid socket 97 and type 'Read', disabling...
QSocketNotifier: Invalid socket 8 and type 'Read', disabling...
QSocketNotifier: Invalid socket 9 and type 'Read', disabling...
The X11 connection broke: I/O error (code 1)
XIO: fatal IO error 9 (Bad file descriptor) on X server ":0"
      after 1605 requests (1605 known processed) with 0 events remaining.
Re-raising signal for core dump handling.
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_mailfilter_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_imap_resource' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_indexing_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_maildir_resource' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_archivemail_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_notes_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_sendlater_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_newmailnotifier_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_migration_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_googlecontacts_resource' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_maildispatcher_agent' exited normally...
org.kde.pim.akonadicontrol: Application '/usr/bin/akonadi_followupreminder_agent' exited normally...
chainup()
mysqladmin: The query to get the server's pid file failed, error: 'Table 'performance_schema.session_variables' doesn't exist'. Continuing.
Segmentation fault (core dumped)

I've tried to report the bug as a kde bug but there are no associated debug symbols for the akonadiconsole package and kubuntu-debug-installer finds nothing for the /usr/bin/akonadiconsole binary.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.