Bug 434205

Summary: akonadiserver crashed handling DB(mariadb) deadlock
Product: [Frameworks and Libraries] Akonadi Reporter: Raúl <rasasi78>
Component: serverAssignee: kdepim bugs <kdepim-bugs>
Status: REPORTED ---    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version: unspecified   
Target Milestone: ---   
Platform: Debian stable   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:

Description Raúl 2021-03-09 19:07:41 UTC 
Application: akonadiserver (5.15.3 (20.08.3))

Qt Version: 5.15.2
Frameworks Version: 5.78.0
Operating System: Linux 5.10.0-4-amd64 x86_64
Windowing system: X11
Distribution: Debian GNU/Linux bullseye/sid

-- Information about the crash:
- What I was doing when the application crashed:

kontact hd just retrieved some emails from my gmail pop3 account, then akonadiserver crashed.

-- Backtrace:
Application: Akonadi Server (akonadiserver), signal: Segmentation fault

[KCrash Handler]
#4  std::__atomic_base<int>::load (__m=std::memory_order_relaxed, this=0x0) at /usr/include/c++/10/bits/atomic_base.h:420
#5  QAtomicOps<int>::loadRelaxed<int> (_q_value=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qatomic_cxx11.h:239
#6  QBasicAtomicInteger<int>::loadRelaxed (this=0x0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbasicatomic.h:107
#7  QtPrivate::RefCount::ref (this=0x0) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qrefcount.h:55
#8  QByteArray::QByteArray (a=..., this=0x7f761a7fb510) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qbytearray.h:525
#9  Akonadi::Protocol::PartMetaData::PartMetaData (this=0x7f761a7fb510) at ./obj-x86_64-linux-gnu/src/private/protocol_gen.h:170
#10 Akonadi::Protocol::StreamPayloadResponse::metaData (this=0x7f7604204180) at ./obj-x86_64-linux-gnu/src/private/protocol_gen.h:3688
#11 Akonadi::Server::PartStreamer::requestPartMetaData (this=0x7f761a7fb6d0, partName=...) at ./src/server/storage/partstreamer.cpp:60
#12 0x000056351075a047 in Akonadi::Server::PartStreamer::streamPayload (this=0x7f761a7fb6d0, part=..., partName=...) at ./src/server/storage/partstreamer.cpp:65
#13 0x000056351075a1e5 in Akonadi::Server::PartStreamer::stream (this=this@entry=0x7f761a7fb6d0, checkExists=checkExists@entry=true, partName=..., partSize=@0x7f761a7fb6a8: 0, changed=changed@entry=0x0) at ./src/server/storage/partstreamer.cpp:319
#14 0x000056351069cb37 in Akonadi::Server::ItemModifyHandler::parseStream (this=0x7f760403ba10) at ./src/server/handler/itemmodifyhandler.cpp:280
#15 0x00005635106706ce in Akonadi::Server::Connection::parseStream (this=0x563510e1d740, cmd=...) at ./src/server/connection.cpp:170
#16 0x0000563510672a37 in operator() (__closure=<optimized out>) at ./src/server/connection.cpp:261
#17 Akonadi::Server::DbDeadlockCatcher::callFunc<Akonadi::Server::Connection::handleIncomingData()::<lambda()>&> (func=..., this=<synthetic pointer>, func=..., recursionCounter=0) at ./src/server/storage/dbdeadlockcatcher.h:34
#18 Akonadi::Server::DbDeadlockCatcher::DbDeadlockCatcher<Akonadi::Server::Connection::handleIncomingData()::<lambda()> > (func=..., this=<synthetic pointer>) at ./src/server/storage/dbdeadlockcatcher.h:27
#19 Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at ./src/server/connection.cpp:261
#20 0x00007f765052ff91 in QObject::event (this=0x563510e1d740, e=0x7f7604005780) at kernel/qobject.cpp:1314
#21 0x00007f7650503f3f in doNotify (event=0x7f7604005780, receiver=0x563510e1d740) at kernel/qcoreapplication.cpp:1153
#22 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#23 QCoreApplication::notifyInternal2 (receiver=0x563510e1d740, event=0x7f7604005780) at kernel/qcoreapplication.cpp:1063
#24 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510e1d4a0) at kernel/qcoreapplication.cpp:1817
#25 0x00007f765055be33 in postEventSourceDispatch (s=0x7f7604004380) at kernel/qeventdispatcher_glib.cpp:277
#26 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#27 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f7604000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#30 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f761a7fbd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#31 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#32 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e1d8d0) at thread/qthread_unix.cpp:329
#33 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#34 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 16 (Thread 0x7f761affd700 (LWP 2410) "0x563510e1cdf0-"):
#1  0x00007f764ecc50ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7600000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f761affc910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x0000563510672fe0 in Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#6  0x00007f765052ff91 in QObject::event (this=0x563510e1cdf0, e=0x7f7600004780) at kernel/qobject.cpp:1314
#7  0x00007f7650503f3f in doNotify (event=0x7f7600004780, receiver=0x563510e1cdf0) at kernel/qcoreapplication.cpp:1153
#8  QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#9  QCoreApplication::notifyInternal2 (receiver=0x563510e1cdf0, event=0x7f7600004780) at kernel/qcoreapplication.cpp:1063
#10 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510e1cb50) at kernel/qcoreapplication.cpp:1817
#11 0x00007f765055be33 in postEventSourceDispatch (s=0x7f7600004fe0) at kernel/qeventdispatcher_glib.cpp:277
#12 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f7600000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#16 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f761affcd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#17 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#18 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e1cf80) at thread/qthread_unix.cpp:329
#19 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#20 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 15 (Thread 0x7f761b7fe700 (LWP 2390) "0x563510e1c400-"):
#1  0x00007f764ecc50ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f760c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f761b7fd910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x0000563510672fe0 in Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#6  0x00007f765052ff91 in QObject::event (this=0x563510e1c400, e=0x7f760c004780) at kernel/qobject.cpp:1314
#7  0x00007f7650503f3f in doNotify (event=0x7f760c004780, receiver=0x563510e1c400) at kernel/qcoreapplication.cpp:1153
#8  QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#9  QCoreApplication::notifyInternal2 (receiver=0x563510e1c400, event=0x7f760c004780) at kernel/qcoreapplication.cpp:1063
#10 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510e1c5b0) at kernel/qcoreapplication.cpp:1817
#11 0x00007f765055be33 in postEventSourceDispatch (s=0x7f760c004fe0) at kernel/qeventdispatcher_glib.cpp:277
#12 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f760c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#16 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f761b7fdd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#17 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#18 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e1c590) at thread/qthread_unix.cpp:329
#19 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#20 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 14 (Thread 0x7f761bfff700 (LWP 2386) "0x563510e19b20-"):
#1  0x00007f764ecc2f38 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc44ab in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc4fdb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7608000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f761bffe910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#7  0x0000563510672fe0 in Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#8  0x00007f765052ff91 in QObject::event (this=0x563510e19b20, e=0x7f7608005400) at kernel/qobject.cpp:1314
#9  0x00007f7650503f3f in doNotify (event=0x7f7608005400, receiver=0x563510e19b20) at kernel/qcoreapplication.cpp:1153
#10 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#11 QCoreApplication::notifyInternal2 (receiver=0x563510e19b20, event=0x7f7608005400) at kernel/qcoreapplication.cpp:1063
#12 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510e19990) at kernel/qcoreapplication.cpp:1817
#13 0x00007f765055be33 in postEventSourceDispatch (s=0x7f7608003f50) at kernel/qeventdispatcher_glib.cpp:277
#14 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f7608000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#18 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f761bffed60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#19 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#20 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e19cb0) at thread/qthread_unix.cpp:329
#21 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#22 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f7638d3a700 (LWP 2384) "0x563510e19200-"):
#1  __GI___libc_read (fd=36, buf=0x7f7638d396b0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f764ed1147f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc4bb6 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f764ecc5055 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7610000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f7638d39910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#8  0x0000563510672fe0 in Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#9  0x00007f765052ff91 in QObject::event (this=0x563510e19200, e=0x7f7610004980) at kernel/qobject.cpp:1314
#10 0x00007f7650503f3f in doNotify (event=0x7f7610004980, receiver=0x563510e19200) at kernel/qcoreapplication.cpp:1153
#11 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#12 QCoreApplication::notifyInternal2 (receiver=0x563510e19200, event=0x7f7610004980) at kernel/qcoreapplication.cpp:1063
#13 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510e19060) at kernel/qcoreapplication.cpp:1817
#14 0x00007f765055be33 in postEventSourceDispatch (s=0x7f7610004db0) at kernel/qeventdispatcher_glib.cpp:277
#15 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f7610000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#19 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f7638d39d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#20 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#21 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e193b0) at thread/qthread_unix.cpp:329
#22 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#23 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f763953b700 (LWP 2373) "0x563510e189d0-"):
#1  0x00007f764ecc2f55 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc44ab in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc4fdb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7614000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f763953a910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#7  0x0000563510672fe0 in Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#8  0x00007f765052ff91 in QObject::event (this=0x563510e189d0, e=0x7f7614004780) at kernel/qobject.cpp:1314
#9  0x00007f7650503f3f in doNotify (event=0x7f7614004780, receiver=0x563510e189d0) at kernel/qcoreapplication.cpp:1153
#10 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#11 QCoreApplication::notifyInternal2 (receiver=0x563510e189d0, event=0x7f7614004780) at kernel/qcoreapplication.cpp:1063
#12 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510e18860) at kernel/qcoreapplication.cpp:1817
#13 0x00007f765055be33 in postEventSourceDispatch (s=0x7f7614004bb0) at kernel/qeventdispatcher_glib.cpp:277
#14 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f7614000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#18 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f763953ad60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#19 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#20 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e18b00) at thread/qthread_unix.cpp:329
#21 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#22 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f7639d3c700 (LWP 2368) "0x563510d96800-"):
#1  0x00007f764ecc2f38 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc44ab in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc4fdb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7620000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f7639d3b910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#7  0x0000563510672fe0 in Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#8  0x00007f765052ff91 in QObject::event (this=0x563510d96800, e=0x7f7620004780) at kernel/qobject.cpp:1314
#9  0x00007f7650503f3f in doNotify (event=0x7f7620004780, receiver=0x563510d96800) at kernel/qcoreapplication.cpp:1153
#10 QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#11 QCoreApplication::notifyInternal2 (receiver=0x563510d96800, event=0x7f7620004780) at kernel/qcoreapplication.cpp:1063
#12 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510d95b50) at kernel/qcoreapplication.cpp:1817
#13 0x00007f765055be33 in postEventSourceDispatch (s=0x7f7620004fe0) at kernel/qeventdispatcher_glib.cpp:277
#14 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f7620000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#18 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f7639d3bd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#19 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#20 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e11430) at thread/qthread_unix.cpp:329
#21 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#22 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f763a53d700 (LWP 2362) "0x563510d8ce00-"):
#1  0x00007f764ecc4fce in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f761c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f763a53c910, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x0000563510672fe0 in Akonadi::Server::Connection::handleIncomingData (this=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qflags.h:121
#6  0x00007f765052ff91 in QObject::event (this=0x563510d8ce00, e=0x7f761c004380) at kernel/qobject.cpp:1314
#7  0x00007f7650503f3f in doNotify (event=0x7f761c004380, receiver=0x563510d8ce00) at kernel/qcoreapplication.cpp:1153
#8  QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#9  QCoreApplication::notifyInternal2 (receiver=0x563510d8ce00, event=0x7f761c004380) at kernel/qcoreapplication.cpp:1063
#10 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510d95c40) at kernel/qcoreapplication.cpp:1817
#11 0x00007f765055be33 in postEventSourceDispatch (s=0x7f761c0047b0) at kernel/qeventdispatcher_glib.cpp:277
#12 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f761c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#16 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f763a53cd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#17 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#18 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510d959b0) at thread/qthread_unix.cpp:329
#19 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#20 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f763ad3e700 (LWP 2290) "StorageJanitor-"):
#1  0x00007f764ecc48af in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc5055 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7628000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f763ad3dd60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6  0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510dfca20) at thread/qthread_unix.cpp:329
#8  0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f763bfff700 (LWP 2279) "SearchManager-T"):
#1  __GI___libc_read (fd=22, buf=0x7f763bffeb50, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:24
#2  0x00007f764ed1147f in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc4bb6 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f764ecc5055 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7624000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#7  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f763bffed60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#8  0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#9  0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e26c00) at thread/qthread_unix.cpp:329
#10 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#11 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f7648cf1700 (LWP 2278) "IntervalCheck-T"):
#1  0x00007f764ecc4f5d in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f762c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f7648cf0d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e2e6d0) at thread/qthread_unix.cpp:329
#7  0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f76494f2700 (LWP 2277) "SearchTaskManag"):
#1  __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x563510de72b0, cond=0x563510de72d8) at pthread_cond_wait.c:508
#2  __pthread_cond_wait (cond=0x563510de72d8, mutex=0x563510de72b0) at pthread_cond_wait.c:638
#3  0x00007f7650328afb in QWaitConditionPrivate::wait (deadline=..., deadline=..., this=0x563510de72b0) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=this@entry=0x563510d9f1b8, mutex=mutex@entry=0x563510d9f1c0, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00005635106b38e1 in Akonadi::Server::SearchTaskManager::searchLoop (this=0x563510d9f190) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6  0x00007f765052ff91 in QObject::event (this=0x563510d9f190, e=0x563510e32930) at kernel/qobject.cpp:1314
#7  0x00007f7650503f3f in doNotify (event=0x563510e32930, receiver=0x563510d9f190) at kernel/qcoreapplication.cpp:1153
#8  QCoreApplication::notify (event=<optimized out>, receiver=<optimized out>, this=<optimized out>) at kernel/qcoreapplication.cpp:1139
#9  QCoreApplication::notifyInternal2 (receiver=0x563510d9f190, event=0x563510e32930) at kernel/qcoreapplication.cpp:1063
#10 0x00007f76505069a1 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x563510dda110) at kernel/qcoreapplication.cpp:1817
#11 0x00007f765055be33 in postEventSourceDispatch (s=0x7f7630004bb0) at kernel/qeventdispatcher_glib.cpp:277
#12 0x00007f764ecc4e6b in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#13 0x00007f764ecc5118 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#14 0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x7f7630000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#16 0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f76494f1d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#17 0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#18 0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e32600) at thread/qthread_unix.cpp:329
#19 0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#20 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f7649cf3700 (LWP 2276) "ItemRetrievalMa"):
#1  0x00007f764ecc458a in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc4fdb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7634000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f7649cf2d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6  0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510e288d0) at thread/qthread_unix.cpp:329
#8  0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f764a4f4700 (LWP 2275) "CacheCleaner-Th"):
#1  0x00007f764ecc50ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7640000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f764a4f3d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510dc3ca0) at thread/qthread_unix.cpp:329
#7  0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#8  0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f764acf5700 (LWP 2274) "NotificationMan"):
#1  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f763c000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#2  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f764acf4d60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#3  0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#4  0x00007f7650322b81 in QThreadPrivate::start (arg=0x563510d99050) at thread/qthread_unix.cpp:329
#5  0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#6  0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f764b932700 (LWP 2221) "QDBusConnection"):
#1  0x00007f764ecc485e in g_main_context_query () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc5028 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f765055b4db in QEventDispatcherGlib::processEvents (this=0x7f7644000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7f764b931d10, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6  0x00007f7650321a3e in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007f76507fea27 in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f7650322b81 in QThreadPrivate::start (arg=0x7f765086bd80) at thread/qthread_unix.cpp:329
#9  0x00007f764f628ea7 in start_thread (arg=<optimized out>) at pthread_create.c:477
#10 0x00007f764ffa7def in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f764be93840 (LWP 2216) "akonadiserver"):
#1  0x00007f764ecc50ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f764ecc51cf in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f765055b4bf in QEventDispatcherGlib::processEvents (this=0x563510d8cc90, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#4  0x00007f765050292b in QEventLoop::exec (this=this@entry=0x7ffc7bbbd240, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#5  0x00007f765050aba0 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x000056351079a925 in AkApplicationBase::exec (this=this@entry=0x7ffc7bbbd330) at ./src/shared/akapplication.cpp:111
#7  0x0000563510668f6e in main (argc=<optimized out>, argv=<optimized out>) at ./src/server/main.cpp:66
[Inferior 1 (process 2216) detached]

Possible duplicates by query: bug 434107, bug 433252, bug 431764, bug 430790, bug 429420.

Reported using DrKonqi