SUMMARY When attempting to migrate to SQLite in Fedora 40, akonadi-db-migrator segfaults. STEPS TO REPRODUCE 1. akonadi-db-migrator --newengine sqlite OBSERVED RESULT org.kde.pim.akonadiserver: mysqld for Akonadi is already running, trying to connect to it. akonadi.collectionattributetable OK akonadi.collectionmimetyperelation OK akonadi.collectionpimitemrelation OK akonadi.collectiontable OK akonadi.flagtable OK akonadi.mimetypetable OK akonadi.parttable OK akonadi.parttypetable OK akonadi.pimitemflagrelation OK akonadi.pimitemtable OK akonadi.pimitemtagrelation OK akonadi.relationtable OK akonadi.relationtypetable OK akonadi.resourcetable OK akonadi.schemaversiontable OK akonadi.tagattributetable OK akonadi.tagremoteidresourcerelationtable OK akonadi.tagtable OK akonadi.tagtypetable OK This installation of MariaDB is already upgraded to 10.11.6-MariaDB. There is no need to run mysql_upgrade again for 10.11.8-MariaDB. You can use --force if you still want to run mysql_upgrade org.kde.pim.akonadiserver: Running DB initializer org.kde.pim.akonadiserver: DB initializer done org.kde.pim.akonadiserver: Running DB initializer [1] 233034 segmentation fault (core dumped) akonadi-db-migrator --newengine sqlite SOFTWARE/OS VERSIONS (available in the Info Center app, or by running `kinfo` in a terminal window) Linux/KDE Plasma: Fedora 40 KDE Plasma Version: 6.1.4 KDE Frameworks Version: 6.5.0 Qt Version: 6.7.2 ADDITIONAL INFORMATION GDB info: Akonadi::Server::DbInitializer::run (this=0x7fffe003a900) at /usr/src/debug/akonadi-server-24.08.0-1.fc40.x86_64/src/server/storage/dbinitializer.cpp:82 82 SchemaVersion version = SchemaVersion::retrieveAll(store).at(0); (gdb) bt #0 Akonadi::Server::DbInitializer::run (this=0x7fffe003a900) at /usr/src/debug/akonadi-server-24.08.0-1.fc40.x86_64/src/server/storage/dbinitializer.cpp:82 #1 0x00005555555bd7ba in Akonadi::Server::DataStore::init (this=0x7fffe0045190) at /usr/include/qt6/QtCore/qsharedpointer_impl.h:274 #2 0x00005555555a712a in (anonymous namespace)::prepareDatabase (config=config@entry=0x7fffe00089d0) at /usr/src/debug/akonadi-server-24.08.0-1.fc40.x86_64/src/server/dbmigrator/dbmigrator.cpp:194 #3 0x00005555555ac340 in Akonadi::Server::DbMigrator::runMigrationThread (this=0x7fffffffd7a0) at /usr/src/debug/akonadi-server-24.08.0-1.fc40.x86_64/src/server/dbmigrator/dbmigrator.cpp:533 #4 operator() (__closure=0x5555557523a8) at /usr/src/debug/akonadi-server-24.08.0-1.fc40.x86_64/src/server/dbmigrator/dbmigrator.cpp:452 #5 0x00005555555ae95d in std::__invoke_impl<void, Akonadi::Server::DbMigrator::startMigration()::<lambda()> > (__f=<optimized out>) at /usr/include/c++/14/bits/invoke.h:61 #6 std::__invoke<Akonadi::Server::DbMigrator::startMigration()::<lambda()> > (__fn=<optimized out>) at /usr/include/c++/14/bits/invoke.h:96 #7 std::invoke<Akonadi::Server::DbMigrator::startMigration()::<lambda()> > (__fn=<optimized out>) at /usr/include/c++/14/functional:120 #8 operator()<> (__closure=<optimized out>) at /usr/include/qt6/QtCore/qthread.h:125 #9 std::__invoke_impl<void, QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > (__f=<optimized out>) at /usr/include/c++/14/bits/invoke.h:61 #10 std::__invoke<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > (__fn=<optimized out>) at /usr/include/c++/14/bits/invoke.h:96 #11 std::thread::_Invoker<std::tuple<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > >::_M_invoke<0> (this=<optimized out>) at /usr/include/c++/14/bits/std_thread.h:301 #12 std::thread::_Invoker<std::tuple<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > >::operator() (this=<optimized out>) at /usr/include/c++/14/bits/std_thread.h:308 #13 std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > >, void>::operator() (this=0x7fffe57ffa60) at /usr/include/c++/14/future:1439 #14 std::__invoke_impl<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > >, void>&> (__f=...) at /usr/include/c++/14/bits/invoke.h:61 #15 std::__invoke_r<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>, std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > >, void>&> (__fn=...) at /usr/include/c++/14/bits/invoke.h:114 #16 std::_Function_handler<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>(), std::__future_base::_Task_setter<std::unique_ptr<std::__future_base::_Result<void>, std::__future_base::_Result_base::_Deleter>, std::thread::_Invoker<std::tuple<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > >, void> >::_M_invoke(const std::_Any_data &) (__functor=...) at /usr/include/c++/14/bits/std_function.h:291 #17 0x00005555555a49b6 in std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()>::operator() (this=<optimized out>) at /usr/include/c++/14/bits/std_function.h:591 #18 std::__future_base::_State_baseV2::_M_do_set (this=0x555555752380, __f=<optimized out>, __did_set=0x7fffe57ffa17) at /usr/include/c++/14/future:596 #19 0x00007ffff6caba4b in __pthread_once_slow (once_control=0x555555752398, init_routine=0x7ffff6ee5f60 <std::__once_proxy()>) at pthread_once.c:116 #20 0x00007ffff6cabab9 in ___pthread_once (once_control=<optimized out>, init_routine=<optimized out>) at pthread_once.c:143 #21 0x00005555555aeb38 in __gthread_once (__once=0x555555752398, __func=<optimized out>) at /usr/include/c++/14/x86_64-redhat-linux/bits/gthr-default.h:713 #22 std::call_once<void (std::__future_base::_State_baseV2::*)(std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()>*, bool*), std::__future_base::_State_baseV2*, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()>*, bool*> (__once=..., __f=@0x7fffe57ffa30: (void (std::__future_base::_State_baseV2::*)(std::__future_base::_State_baseV2 * const, std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter>()> *, bool *)) 0x5555555a4980 <std::__future_base::_State_baseV2::_M_do_set(std::function<std::unique_ptr<std::__future_base::_Result_base, std::__future_base::_Result_base::_Deleter> ()>*, bool*)>) at /usr/include/c++/14/mutex:916 #23 std::__future_base::_State_baseV2::_M_set_result (this=0x555555752380, __res=..., __ignore_failure=true) at /usr/include/c++/14/future:435 #24 std::__future_base::_Deferred_state<std::thread::_Invoker<std::tuple<QThread::create<Akonadi::Server::DbMigrator::startMigration()::<lambda()> >(Akonadi::Server::DbMigrator::startMigration()::<lambda()>&&)::<lambda(auto:53&& ...)> > >, void>::_M_complete_async(void) (this=0x555555752380) at /usr/include/c++/14/future:1712 #25 0x00007ffff74b8417 in std::__future_base::_State_baseV2::wait (this=0x555555752380) at /usr/include/c++/14/future:357 #26 std::__basic_future<void>::_M_get_result (this=0x5555557523f0) at /usr/include/c++/14/future:748 #27 std::future<void>::get (this=0x5555557523f0) at /usr/include/c++/14/future:920 #28 QThreadCreateThread::run (this=0x5555557523e0) at /usr/src/debug/qt6-qtbase-6.7.2-6.fc40.x86_64/src/corelib/thread/qthread.cpp:1234 #29 0x00007ffff755473c in operator() (__closure=<optimized out>) at /usr/src/debug/qt6-qtbase-6.7.2-6.fc40.x86_64/src/corelib/thread/qthread_unix.cpp:326 #30 (anonymous namespace)::terminate_on_exception<QThreadPrivate::start(void*)::<lambda()> > (t=<optimized out>) at /usr/src/debug/qt6-qtbase-6.7.2-6.fc40.x86_64/src/corelib/thread/qthread_unix.cpp:262 #31 QThreadPrivate::start (arg=0x5555557523e0) at /usr/src/debug/qt6-qtbase-6.7.2-6.fc40.x86_64/src/corelib/thread/qthread_unix.cpp:285 #32 0x00007ffff6ca66d7 in start_thread (arg=<optimized out>) at pthread_create.c:447 #33 0x00007ffff6d2a60c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78