[Akonadi] [Bug 398191] New: akonadiserver crashes from time to time since upgrading to 18.08

Pieter David bugzilla_noreply at kde.org
Mon Sep 3 12:21:07 BST 2018 

https://bugs.kde.org/show_bug.cgi?id=398191

            Bug ID: 398191
           Summary: akonadiserver crashes from time to time since
                    upgrading to 18.08
           Product: Akonadi
           Version: 5.9.0
          Platform: Archlinux Packages
                OS: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: server
          Assignee: kdepim-bugs at kde.org
          Reporter: pieter.david at gmail.com
  Target Milestone: ---

Application: akonadiserver (5.9.0)

Qt Version: 5.11.1
Frameworks Version: 5.49.0
Operating System: Linux 4.18.5-arch1-1-ARCH x86_64
Distribution: "Arch Linux" (akonadi 18.08.0-1 package recompiled for debug
symbols)

-- Information about the crash:
- What I was doing when the application crashed:
It's hard to say what triggers the crash, other than "kmail activity" (mail
sync, browsing email folders). The frequency goes down when I set my gmail
account to "offline", but it still happens from time to time.

- Custom settings of the application:
I have several IMAP accounts, two of which (one gmail, one work-related which
uses a microsoft exchange server) have quite a lot of messages.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Akonadi Server (akonadiserver), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f3b4c4a9e40 (LWP 22036))]

Thread 44 (Thread 0x7f3ab77f6700 (LWP 22632)):
#0  0x00007f3b504f5ad4 in g_mutex_unlock () from /usr/lib/libglib-2.0.so.0
#1  0x00007f3b504ae87a in g_main_context_check () from
/usr/lib/libglib-2.0.so.0
#2  0x00007f3b504aee66 in ?? () from /usr/lib/libglib-2.0.so.0
#3  0x00007f3b504aefee in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#4  0x00007f3b5297b4c4 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#5  0x00007f3b52926dac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#6  0x0000560db33a4383 in Akonadi::Server::Connection::handleIncomingData() ()
at /usr/include/qt/QtCore/qflags.h:120
#7  0x00007f3b5295e137 in ?? () from /usr/lib/libQt5Core.so.5
#8  0x00007f3b529527eb in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#9  0x00007f3b529280f7 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#10 0x00007f3b5297a87a in QTimerInfoList::activateTimers() () from
/usr/lib/libQt5Core.so.5
#11 0x00007f3b5297b102 in ?? () from /usr/lib/libQt5Core.so.5
#12 0x00007f3b504aeca7 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#13 0x00007f3b504aef59 in ?? () from /usr/lib/libglib-2.0.so.0
#14 0x00007f3b504aefee in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#15 0x00007f3b5297b4a9 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#16 0x00007f3b52926dac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#17 0x00007f3b5276ff59 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#18 0x00007f3b5277a005 in ?? () from /usr/lib/libQt5Core.so.5
#19 0x00007f3b51a0ba9d in start_thread () from /usr/lib/libpthread.so.0
#20 0x00007f3b52444a43 in clone () from /usr/lib/libc.so.6

[many similar stacks for other threads left out for readability]

Thread 9 (Thread 0x7f3b3bfff700 (LWP 22059)):
[KCrash Handler]
#6  QByteArray::QByteArray (a=..., this=this at entry=0x7f3b3bffd7e0) at
/usr/include/qt/QtCore/qbytearray.h:498
#7  Akonadi::Server::Connection::sessionId (this=0x0) at
/usr/src/debug/akonadi-18.08.0/src/server/connection.cpp:437
#8  0x0000560db33ca140 in
Akonadi::Server::FetchHelper::isScopeLocal(Akonadi::Scope const&) () at
/usr/src/debug/akonadi-18.08.0/src/server/handler/fetchhelper.cpp:268
#9  0x0000560db33cab78 in
Akonadi::Server::FetchHelper::fetchItems(std::function<void
(Akonadi::Protocol::FetchItemsResponse&&)>&&) () at
/usr/include/qt/QtCore/qflags.h:145
#10 0x0000560db34b47ac in
Akonadi::Server::NotificationCollector::completeNotification(QSharedPointer<Akonadi::Protocol::ChangeNotification>
const&) () at /usr/include/c++/8.2.0/new:169
#11 0x0000560db34b4cfb in
Akonadi::Server::NotificationCollector::dispatchNotification(QSharedPointer<Akonadi::Protocol::ChangeNotification>
const&) () at
/usr/src/debug/akonadi-18.08.0/src/server/storage/notificationcollector.cpp:586
#12 0x0000560db34b8a1f in
Akonadi::Server::NotificationCollector::itemNotification(Akonadi::Protocol::ItemChangeNotification::Operation,
QVector<Akonadi::Server::PimItem> const&, Akonadi::Server::Collection const&,
Akonadi::Server::Collection const&, QByteArray const&, QSet<QByteArray> const&,
QSet<QByteArray> const&, QSet<QByteArray> const&, QSet<long long> const&,
QSet<long long> const&, QVector<Akonadi::Server::Relation> const&,
QVector<Akonadi::Server::Relation> const&) () at
/usr/include/c++/8.2.0/bits/atomic_base.h:295
#13 0x0000560db34b9b52 in
Akonadi::Server::NotificationCollector::itemsLinked(QVector<Akonadi::Server::PimItem>
const&, Akonadi::Server::Collection const&) () at
/usr/include/qt/QtCore/qarraydata.h:255
#14 0x0000560db341695f in
Akonadi::Server::SearchManager::searchUpdateResultsAvailable(QSet<long long>
const&) () at
/usr/src/debug/akonadi-18.08.0/src/server/search/searchmanager.cpp:451
#15 0x00007f3b529520b0 in QMetaObject::activate(QObject*, int, int, void**) ()
from /usr/lib/libQt5Core.so.5
#16 0x0000560db34f65d3 in Akonadi::Server::SearchRequest::resultsAvailable
(this=this at entry=0x7f3b3bffe7d0, _t1=...) at
/usr/src/debug/build/src/server/libakonadiserver_autogen/O2QWORDHJD/moc_searchrequest.cpp:141
#17 0x0000560db3410f48 in Akonadi::Server::SearchRequest::emitResults(QSet<long
long> const&) () at
/usr/src/debug/akonadi-18.08.0/src/server/search/searchrequest.cpp:99
#18 0x0000560db3411253 in Akonadi::Server::SearchRequest::searchPlugins() () at
/usr/src/debug/akonadi-18.08.0/src/server/search/searchrequest.cpp:110
#19 0x0000560db34113f3 in Akonadi::Server::SearchRequest::exec() () at
/usr/src/debug/akonadi-18.08.0/src/server/search/searchrequest.cpp:120
#20 0x0000560db3417c8d in
Akonadi::Server::SearchManager::updateSearchImpl(Akonadi::Server::Collection
const&) () at
/usr/src/debug/akonadi-18.08.0/src/server/search/searchmanager.cpp:338
#21 0x00007f3b52952832 in QObject::event(QEvent*) () from
/usr/lib/libQt5Core.so.5
#22 0x00007f3b529280f7 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() from /usr/lib/libQt5Core.so.5
#23 0x00007f3b5292b1ac in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /usr/lib/libQt5Core.so.5
#24 0x00007f3b5297bec4 in ?? () from /usr/lib/libQt5Core.so.5
#25 0x00007f3b504aeca7 in g_main_context_dispatch () from
/usr/lib/libglib-2.0.so.0
#26 0x00007f3b504aef59 in ?? () from /usr/lib/libglib-2.0.so.0
#27 0x00007f3b504aefee in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#28 0x00007f3b5297b4a9 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /usr/lib/libQt5Core.so.5
#29 0x00007f3b52926dac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/usr/lib/libQt5Core.so.5
#30 0x00007f3b5276ff59 in QThread::exec() () from /usr/lib/libQt5Core.so.5
#31 0x00007f3b5277a005 in ?? () from /usr/lib/libQt5Core.so.5
#32 0x00007f3b51a0ba9d in start_thread () from /usr/lib/libpthread.so.0
#33 0x00007f3b52444a43 in clone () from /usr/lib/libc.so.6

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