Bug#1007252: akonadi-server is using 100 percent cpu-power

["Hans-J. Ullrich" <hans.ullrich@loop.de>]

Package: akonadi-server
Version: 4:20.08.3-3
Severity: important

Dear Maintainer,

I suddenly discovered, that akonadiserver is using 100 percent cpu-power. It also looks like, that it is indexing something again and again, because it is accessing the harddrive until nothing is working any more. "Nothing is working" means, even the mousepointer is moving any more.

If you stop akonadiserver (akonadictl stop), everything is working fine, until you download a new e-mail with kmail. Then you see akonadiserver running again, eating all cpu-power until the system freezes.

Sadly I could not discover, why this happens and what might be the reason for it. 

In kmail everything is working well, only this problem with akonadiserver appears. 

Any ideas, what has happened? This issue appeared suddenly, although I did not change anything exept upgrading the system. Maybe it is related to some database like mysql, postgresql or mariadb?

I would not like to upgrade to debian/testing only because one package is buggy.

Thanks for any help.

Best regards

Hans
 

-- System Information:
Debian Release: 11.2
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-8-amd64 (SMP w/2 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages akonadi-server depends on:
ii  akonadi-backend-mysql                                    4:20.08.3-3
ii  akonadi-backend-postgresql                               4:20.08.3-3
ii  akonadi-backend-sqlite                                   4:20.08.3-3
ii  libaccounts-qt5-1                                        1.16-2
ii  libc6                                                    2.32-4
ii  libgcc-s1                                                10.2.1-6
ii  libkf5akonadiprivate5abi2 [libkf5akonadiprivate5-20.08]  4:20.08.3-3
ii  libkf5akonadiwidgets5abi1 [libkf5akonadiwidgets5-20.08]  4:20.08.3-3
ii  libkf5configcore5                                        5.86.0-1
ii  libkf5coreaddons5                                        5.86.0-1
ii  libkf5crash5                                             5.86.0-1
ii  libkf5i18n5                                              5.86.0-1
ii  libqt5core5a                                             5.15.2+dfsg-9
ii  libqt5dbus5                                              5.15.2+dfsg-9
ii  libqt5gui5                                               5.15.2+dfsg-9
ii  libqt5network5                                           5.15.2+dfsg-9
ii  libqt5sql5                                               5.15.2+dfsg-9
ii  libqt5widgets5                                           5.15.2+dfsg-9
ii  libqt5xml5                                               5.15.2+dfsg-9
ii  libstdc++6                                               11.2.0-10

akonadi-server recommends no packages.

Versions of packages akonadi-server suggests:
ii  akonadi-backend-mysql       4:20.08.3-3
ii  akonadi-backend-postgresql  4:20.08.3-3
ii  akonadi-backend-sqlite      4:20.08.3-3

-- debconf-show failed