https://bugs.kde.org/show_bug.cgi?id=427387
Bug ID: 427387
Summary: Crash in ParseProjectJob::start() when exiting
KDevelop soon after a large project is opened
Product: kdevelop
Version: git master
Platform: Compiled Sources
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: general
Assignee: kdevelop-bugs-n...@kde.org
Reporter: igor...@gmail.com
Target Milestone: ---
SUMMARY
When a user exits KDevelop soon after a large project is opened, before
ParseProjectJob::start() returns, DUChain::shutdown() may be called in the
ParseProjectJob::start()'s nested event loop. This causes a crash if the
ParseProjectJob is killed but not destroyed by the time its
QApplication::processEvents() returns and the start() indirectly accesses an
IndexedString.
SOFTWARE/OS VERSIONS
Manjaro GNU/Linux, Xfce
KDE Frameworks Version: 5.74.0
Qt Version: 5.15.1
ADDITIONAL INFORMATION
I am going to create a Merge Request with a fix soon.
BACKTRACE
Application: KDevelop (kdevelop), signal: Aborted
[KCrash Handler]
#4 0x00007f2d63043355 in raise () at /usr/lib/libc.so.6
#5 0x00007f2d6302c853 in abort () at /usr/lib/libc.so.6
#6 0x00007f2d6359b9ac in () at /usr/lib/libQt5Core.so.5
#7 0x00007f2d6359ad59 in qt_assert_x(char const*, char const*, char const*,
int) () at /usr/lib/libQt5Core.so.5
#8 0x00007f2d661dd67c in KDevelop::IndexedString::toUrl() const
(this=0x5565053195ac) at ../kdevplatform/serialization/indexedstring.cpp:304
#9 0x00007f2d663c0c6a in (anonymous
namespace)::isValidURL(KDevelop::IndexedString const&) (url=...) at
../kdevplatform/language/backgroundparser/backgroundparser.cpp:97
#10 0x00007f2d663c1887 in
KDevelop::BackgroundParser::addDocument(KDevelop::IndexedString const&,
KDevelop::TopDUContext::Features, int, QObject*,
QFlags<KDevelop::ParseJob::SequentialProcessingFlag>, int)
(this=0x5564fc126170, url=...,
features=KDevelop::TopDUContext::VisibleDeclarationsAndContexts,
priority=10000, notifyWhenReady=0x556503086fd0, flags=..., delay=-1) at
../kdevplatform/language/backgroundparser/backgroundparser.cpp:609
#11 0x00007f2d663d9f44 in KDevelop::ParseProjectJob::start()
(this=0x556503086fd0) at
../kdevplatform/language/backgroundparser/parseprojectjob.cpp:184
#12 0x00007f2d67628dd7 in KDevelop::RunController::registerJob(KJob*)
(this=0x5564fc11d360, job=0x556503086fd0) at
../kdevplatform/shell/runcontroller.cpp:628
#13 0x00007f2d675e8711 in
KDevelop::ProjectController::reparseProject(KDevelop::IProject*, bool, bool)
(this=0x5564fc0bacd0, project=0x5564fdd0cfc0, forceUpdate=false,
forceAll=false) at ../kdevplatform/shell/projectcontroller.cpp:1381
#14 0x00007f2d675e60b2 in
KDevelop::ProjectController::projectImportingFinished(KDevelop::IProject*)
(this=0x5564fc0bacd0, project=0x5564fdd0cfc0) at
../kdevplatform/shell/projectcontroller.cpp:1002
#15 0x00007f2d675fe9b5 in KDevelop::ProjectPrivate::importDone(KJob*)
(this=0x5564fde1f4a0, job=0x5564ffb8de70) at
../kdevplatform/shell/project.cpp:221
#16 0x00007f2d675fc232 in operator()(KJob*) const (__closure=0x5564ffe28840,
job=0x5564ffb8de70) at ../kdevplatform/shell/project.cpp:548
#17 0x00007f2d675fe3a4 in QtPrivate::FunctorCall<QtPrivate::IndexesList<0>,
QtPrivate::List<KJob*>, void, KDevelop::Project::open(const
KDevelop::Path&)::<lambda(KJob*)> >::call(struct {...} &, void **) (f=...,
arg=0x7ffee5c93e10) at /usr/include/qt/QtCore/qobjectdefs_impl.h:146
#18 0x00007f2d675fe2fc in QtPrivate::Functor<KDevelop::Project::open(const
KDevelop::Path&)::<lambda(KJob*)>, 1>::call<QtPrivate::List<KJob*>,
void>(struct {...} &, void *, void **) (f=..., arg=0x7ffee5c93e10) at
/usr/include/qt/QtCore/qobjectdefs_impl.h:256
#19 0x00007f2d675fe2a1 in
QtPrivate::QFunctorSlotObject<KDevelop::Project::open(const
KDevelop::Path&)::<lambda(KJob*)>, 1, QtPrivate::List<KJob*>, void>::impl(int,
QtPrivate::QSlotObjectBase *, QObject *, void **, bool *) (which=1,
this_=0x5564ffe28830, r=0x5564fdd0cfc0, a=0x7ffee5c93e10, ret=0x0) at
/usr/include/qt/QtCore/qobjectdefs_impl.h:443
#20 0x00007f2d637f4a26 in () at /usr/lib/libQt5Core.so.5
#21 0x00007f2d63cafced in KJob::result(KJob*, KJob::QPrivateSignal) () at
/usr/lib/libKF5CoreAddons.so.5
#22 0x00007f2d63cb080c in KJob::finishJob(bool) () at
/usr/lib/libKF5CoreAddons.so.5
#23 0x00007f2d66159b9d in KDevelop::ExecuteCompositeJob::slotResult(KJob*)
(this=0x5564ffb8de70, job=0x55650008f780) at
../kdevplatform/util/executecompositejob.cpp:129
#24 0x00007f2d637f4a26 in () at /usr/lib/libQt5Core.so.5
#25 0x00007f2d63cafced in KJob::result(KJob*, KJob::QPrivateSignal) () at
/usr/lib/libKF5CoreAddons.so.5
#26 0x00007f2d63cb080c in KJob::finishJob(bool) () at
/usr/lib/libKF5CoreAddons.so.5
#27 0x00007f2d62f3e3e5 in
KDevelop::FileManagerListJob::handleResults(QList<KIO::UDSEntry> const&)
(this=0x55650008f780, entriesIn=...) at
../kdevplatform/project/filemanagerlistjob.cpp:196
#28 0x00007f2d62f0a4f3 in
KDevelop::FileManagerListJob::qt_static_metacall(QObject*, QMetaObject::Call,
int, void**) (_o=0x55650008f780, _c=QMetaObject::InvokeMetaMethod, _id=4,
_a=0x7f2cf02c8798) at
kdevplatform/project/KDevPlatformProject_autogen/EWIEGA46WW/moc_filemanagerlistjob.cpp:108
#29 0x00007f2d637ea1d2 in QObject::event(QEvent*) () at
/usr/lib/libQt5Core.so.5
#30 0x00007f2d64641702 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() at /usr/lib/libQt5Widgets.so.5
#31 0x00007f2d637bd7ba in QCoreApplication::notifyInternal2(QObject*, QEvent*)
() at /usr/lib/libQt5Core.so.5
#32 0x00007f2d637c02a3 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () at /usr/lib/libQt5Core.so.5
#33 0x00007f2d63816cf4 in () at /usr/lib/libQt5Core.so.5
#34 0x00007f2d616a543c in g_main_context_dispatch () at
/usr/lib/libglib-2.0.so.0
#35 0x00007f2d616f31d9 in () at /usr/lib/libglib-2.0.so.0
#36 0x00007f2d616a4221 in g_main_context_iteration () at
/usr/lib/libglib-2.0.so.0
#37 0x00007f2d63816331 in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
at /usr/lib/libQt5Core.so.5
#38 0x00007f2d637bc13c in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at
/usr/lib/libQt5Core.so.5
#39 0x00007f2d637c45c4 in QCoreApplication::exec() () at
/usr/lib/libQt5Core.so.5
#40 0x00005564f984681f in main(int, char**) (argc=3, argv=0x7ffee5c948b8) at
../app/main.cpp:850
[Inferior 1 (process 54203) detached]
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