Bug 384886

Summary: KDevelop autocomplete deadlock
Product: [Applications] kdevelop Reporter: jgiszczak
Component: generalAssignee: kdevelop-bugs-null
Status: RESOLVED UNMAINTAINED    
Severity: crash CC: mail
Priority: NOR Keywords: drkonqi
Version First Reported In: 4.7.3   
Target Milestone: ---   
Platform: Mint (Ubuntu based)   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description jgiszczak 2017-09-20 15:44:16 UTC 
Application: kdevelop (4.7.3)
KDE Platform Version: 4.14.16
Qt Version: 4.8.7
Operating System: Linux 4.10.0-32-generic x86_64
Distribution: Linux Mint 18.2 Sonya

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

Writing C++ sourcecode.

- Unusual behavior I noticed:

This deadlock only seems to occur on a particularly fast machine.  Running in a VM, it never locks up.  Running natively on a fast i7 with 32GB of RAM, it invariably locks up after just a few minutes.

The crash can be reproduced every time.

-- Backtrace:
Application: KDevelop (kdevelop), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f22b5a15940 (LWP 9566))]

Thread 10 (Thread 0x7f21ec19d700 (LWP 9770)):
#0  0x00007f22b210d24d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f22ac1c96f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f22ac185e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f22ac186330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f22ac18649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f22b291d2ce in QEventDispatcherGlib::processEvents (this=0x7f21c80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#6  0x00007f22b28eb18f in QEventLoop::processEvents (this=this@entry=0x7f21ec19cc90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f22b28eb4f5 in QEventLoop::exec (this=this@entry=0x7f21ec19cc90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f22b27da549 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#9  0x00007f22b27dce3c in QThreadPrivate::start (arg=0x80e5f80) at thread/qthread_unix.cpp:352
#10 0x00007f22ae6036ba in start_thread (arg=0x7f21ec19d700) at pthread_create.c:333
#11 0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 9 (Thread 0x7f21ed67e700 (LWP 9609)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22b27dd3a6 in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x1e66a00) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x1ee29b8, mutex=0x596e200, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22a8573c9c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x1ee2990, th=0x595c250) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22a8576993 in ThreadWeaver::WorkingHardState::applyForWork (this=0x1fdc4c0, th=0x595c250, previous=0x60cbec0) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22a85754ef in ThreadWeaver::Thread::run (this=0x595c250) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/Thread.cpp:98
#6  0x00007f22b27dce3c in QThreadPrivate::start (arg=0x595c250) at thread/qthread_unix.cpp:352
#7  0x00007f22ae6036ba in start_thread (arg=0x7f21ed67e700) at pthread_create.c:333
#8  0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 8 (Thread 0x7f21ede7f700 (LWP 9608)):
#0  0x00007f22b211170d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f22ac18638c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f22ac18649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f22b291d2ce in QEventDispatcherGlib::processEvents (this=0x7f21cc0008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f22b28eb18f in QEventLoop::processEvents (this=this@entry=0x7f21ede7ec40, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f22b28eb4f5 in QEventLoop::exec (this=this@entry=0x7f21ede7ec40, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f22b27da549 in QThread::exec (this=this@entry=0x59a6f30) at thread/qthread.cpp:538
#7  0x00007f22b28cb223 in QInotifyFileSystemWatcherEngine::run (this=0x59a6f30) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f22b27dce3c in QThreadPrivate::start (arg=0x59a6f30) at thread/qthread_unix.cpp:352
#9  0x00007f22ae6036ba in start_thread (arg=0x7f21ede7f700) at pthread_create.c:333
#10 0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7f21e3259700 (LWP 9596)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22b27dd3a6 in QWaitConditionPrivate::wait (time=18446744073709551615, this=0x213bd40) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x213bc18, mutex=0x213bec0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007f22a8573c9c in ThreadWeaver::WeaverImpl::blockThreadUntilJobsAreBeingAssigned (this=0x213bbf0, th=0x7f21d421b500) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/WeaverImpl.cpp:370
#4  0x00007f22a8576993 in ThreadWeaver::WorkingHardState::applyForWork (this=0x213bf50, th=0x7f21d421b500, previous=0x0) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/WorkingHardState.cpp:68
#5  0x00007f22a85769ac in ThreadWeaver::WorkingHardState::applyForWork (this=0x213bf50, th=0x7f21d421b500, previous=0x86fe5d0) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/WorkingHardState.cpp:71
#6  0x00007f22a85754ef in ThreadWeaver::Thread::run (this=0x7f21d421b500) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/Thread.cpp:98
#7  0x00007f22b27dce3c in QThreadPrivate::start (arg=0x7f21d421b500) at thread/qthread_unix.cpp:352
#8  0x00007f22ae6036ba in start_thread (arg=0x7f21e3259700) at pthread_create.c:333
#9  0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7f21e2a58700 (LWP 9595)):
[KCrash Handler]
#6  0x00007f22b204b428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007f22b204d02a in __GI_abort () at abort.c:89
#8  0x00007f22b246f84d in __gnu_cxx::__verbose_terminate_handler() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#9  0x00007f22b246d6b6 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#10 0x00007f22b246d701 in std::terminate() () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#11 0x00007f22b246d919 in __cxa_throw () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#12 0x00007f22b27d1b32 in qBadAlloc () at global/qglobal.cpp:2113
#13 0x00007f22b27fcb62 in QListData::realloc (this=this@entry=0x7f21e2a57140, alloc=<optimized out>) at tools/qlist.cpp:222
#14 0x00007f22b27fcbdd in QListData::append (this=this@entry=0x7f21e2a57140, n=n@entry=1) at tools/qlist.cpp:243
#15 0x00007f22b27fcc3a in QListData::append (this=this@entry=0x7f21e2a57140) at tools/qlist.cpp:253
#16 0x00007f21f7281f51 in QList<KDevelop::DUContext*>::append (t=<optimized out>, this=0x7f21e2a57140) at /usr/include/qt4/QtCore/qlist.h:530
#17 QList<KDevelop::DUContext*>::operator<< (t=<optimized out>, this=0x7f21e2a57140) at /usr/include/qt4/QtCore/qlist.h:334
#18 DeclarationBuilder::resolveNamespaceIdentifier (this=this@entry=0x7f21e2a579c0, identifier=..., position=...) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/declarationbuilder.cpp:1217
#19 0x00007f21f7282165 in DeclarationBuilder::visitUsingDirective (this=0x7f21e2a579c0, node=<optimized out>) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/declarationbuilder.cpp:1285
#20 0x00007f21f6fd1d49 in visitNodes<DeclarationAST*> (v=0x7f21e2a57a18, nodes=<optimized out>) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/parser/visitor.h:139
#21 0x00007f21f726d4cb in ContextBuilder::visitNamespace (this=this@entry=0x7f21e2a579c0, node=node@entry=0x7f21bb5d8e18) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/contextbuilder.cpp:472
#22 0x00007f21f7280480 in DeclarationBuilder::visitNamespace (this=0x7f21e2a579c0, ast=0x7f21bb5d8e18) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/declarationbuilder.cpp:1054
#23 0x00007f21f6fd1d49 in visitNodes<DeclarationAST*> (v=0x7f21e2a57a18, nodes=<optimized out>) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/parser/visitor.h:139
#24 0x00007f21f726d4cb in ContextBuilder::visitNamespace (this=this@entry=0x7f21e2a579c0, node=node@entry=0x7f21bb5d8dc8) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/contextbuilder.cpp:472
#25 0x00007f21f7280480 in DeclarationBuilder::visitNamespace (this=0x7f21e2a579c0, ast=0x7f21bb5d8dc8) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/declarationbuilder.cpp:1054
#26 0x00007f21f6fd1d49 in visitNodes<DeclarationAST*> (v=0x7f21e2a57a18, nodes=<optimized out>) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/parser/visitor.h:139
#27 0x00007f21f7273344 in KDevelop::AbstractContextBuilder<AST, NameAST>::supportBuild (this=0x7f21e2a579c0, node=0x7f21bb5d8d90, context=0x7f21b0c511f0) at /usr/include/kdevplatform/language/duchain/builders/abstractcontextbuilder.h:133
#28 0x00007f21f72701eb in ContextBuilder::buildContexts (this=0x7f21e2a579c0, file=..., node=0x7f21bb5d8d90, includes=<optimized out>, updateContext=..., removeOldImports=false) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/contextbuilder.cpp:421
#29 0x00007f21f727a2a1 in DeclarationBuilder::buildDeclarations (this=this@entry=0x7f21e2a579c0, file=..., node=node@entry=0x7f21bb5d8d90, includes=includes@entry=0x7f21e2a57740, updateContext=..., removeOldImports=false) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppduchain/declarationbuilder.cpp:95
#30 0x00007f21f7578bdd in CPPInternalParseJob::run (this=<optimized out>) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/languages/cpp/cppparsejob.cpp:639
#31 0x00007f22a8575cb2 in ThreadWeaver::JobRunHelper::runTheJob (this=this@entry=0x7f21e2a57c30, th=th@entry=0x56ab7b0, job=job@entry=0x803fc40) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/Job.cpp:106
#32 0x00007f22a8575ebe in ThreadWeaver::Job::execute (this=0x803fc40, th=0x56ab7b0) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/Job.cpp:135
#33 0x00007f22a8577bab in ThreadWeaver::JobCollectionJobRunner::execute (this=0x7d79a40, t=0x56ab7b0) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/JobCollection.cpp:82
#34 0x00007f22a857558b in ThreadWeaver::Thread::run (this=0x56ab7b0) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/threadweaver/Weaver/Thread.cpp:108
#35 0x00007f22b27dce3c in QThreadPrivate::start (arg=0x56ab7b0) at thread/qthread_unix.cpp:352
#36 0x00007f22ae6036ba in start_thread (arg=0x7f21e2a58700) at pthread_create.c:333
#37 0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f21e2257700 (LWP 9586)):
#0  0x00007f22b211170d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f22ac18638c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f22ac18649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f22b291d2ce in QEventDispatcherGlib::processEvents (this=0x7f21d80008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#4  0x00007f22b28eb18f in QEventLoop::processEvents (this=this@entry=0x7f21e2256c40, flags=...) at kernel/qeventloop.cpp:149
#5  0x00007f22b28eb4f5 in QEventLoop::exec (this=this@entry=0x7f21e2256c40, flags=...) at kernel/qeventloop.cpp:204
#6  0x00007f22b27da549 in QThread::exec (this=this@entry=0x61e1e00) at thread/qthread.cpp:538
#7  0x00007f22b28cb223 in QInotifyFileSystemWatcherEngine::run (this=0x61e1e00) at io/qfilesystemwatcher_inotify.cpp:265
#8  0x00007f22b27dce3c in QThreadPrivate::start (arg=0x61e1e00) at thread/qthread_unix.cpp:352
#9  0x00007f22ae6036ba in start_thread (arg=0x7f21e2257700) at pthread_create.c:333
#10 0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f21f6d99700 (LWP 9581)):
#0  0x00007f22b210d24d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f22ac1c96f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f22ac185e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f22ac186330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f22ac18649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f22b291d2ce in QEventDispatcherGlib::processEvents (this=0x7f21f00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:452
#6  0x00007f22b28eb18f in QEventLoop::processEvents (this=this@entry=0x7f21f6d98c90, flags=...) at kernel/qeventloop.cpp:149
#7  0x00007f22b28eb4f5 in QEventLoop::exec (this=this@entry=0x7f21f6d98c90, flags=...) at kernel/qeventloop.cpp:204
#8  0x00007f22b27da549 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:538
#9  0x00007f22b27dce3c in QThreadPrivate::start (arg=0x42426f0) at thread/qthread_unix.cpp:352
#10 0x00007f22ae6036ba in start_thread (arg=0x7f21f6d99700) at pthread_create.c:333
#11 0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f220cbef700 (LWP 9576)):
#0  0x00007f22b20e230d in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f22b2113d54 in usleep (useconds=<optimized out>) at ../sysdeps/posix/usleep.c:32
#2  0x00007f22b11097ca in KDevelop::DUChainLock::lockForWrite(unsigned int) () from /usr/lib/libkdevplatformlanguage.so.8
#3  0x00007f22b11099ac in KDevelop::DUChainWriteLocker::lock() () from /usr/lib/libkdevplatformlanguage.so.8
#4  0x00007f22b10c89d8 in ?? () from /usr/lib/libkdevplatformlanguage.so.8
#5  0x00007f22b10c9d1e in ?? () from /usr/lib/libkdevplatformlanguage.so.8
#6  0x00007f22b27dce3c in QThreadPrivate::start (arg=0x35ec5e0) at thread/qthread_unix.cpp:352
#7  0x00007f22ae6036ba in start_thread (arg=0x7f220cbef700) at pthread_create.c:333
#8  0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f229128d700 (LWP 9567)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f22afcf8e1a in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#2  0x00007f22afcf8e49 in ?? () from /usr/lib/x86_64-linux-gnu/libQtScript.so.4
#3  0x00007f22ae6036ba in start_thread (arg=0x7f229128d700) at pthread_create.c:333
#4  0x00007f22b211d3dd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f22b5a15940 (LWP 9566)):
#0  0x00007f22b20e230d in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f22b2113d54 in usleep (useconds=<optimized out>) at ../sysdeps/posix/usleep.c:32
#2  0x00007f22b110961a in KDevelop::DUChainLock::lockForRead(unsigned int) () from /usr/lib/libkdevplatformlanguage.so.8
#3  0x00007f22b11098ec in KDevelop::DUChainReadLocker::lock() () from /usr/lib/libkdevplatformlanguage.so.8
#4  0x00007f21f97f6b33 in ?? () from /usr/lib/kde4/kdevproblemreporter.so
#5  0x00007f21f97f6d00 in ?? () from /usr/lib/kde4/kdevproblemreporter.so
#6  0x00007f22b2901010 in QMetaObject::activate (sender=0x3fc1ed0, m=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3567
#7  0x00007f22b2906c83 in QObject::event (this=0x3fc1ed0, e=<optimized out>) at kernel/qobject.cpp:1253
#8  0x00007f22b2e19fdc in QApplicationPrivate::notify_helper (this=this@entry=0x1802ea0, receiver=receiver@entry=0x3fc1ed0, e=e@entry=0x7fff4df99290) at kernel/qapplication.cpp:4570
#9  0x00007f22b2e20f16 in QApplication::notify (this=this@entry=0x7fff4df996b0, receiver=receiver@entry=0x3fc1ed0, e=e@entry=0x7fff4df99290) at kernel/qapplication.cpp:4356
#10 0x00007f22b42e564a in KApplication::notify (this=0x7fff4df996b0, receiver=0x3fc1ed0, event=0x7fff4df99290) at /build/kde4libs-_S4zyz/kde4libs-4.14.16/kdeui/kernel/kapplication.cpp:311
#11 0x00007f22b28ec90d in QCoreApplication::notifyInternal (this=0x7fff4df996b0, receiver=0x3fc1ed0, event=event@entry=0x7fff4df99290) at kernel/qcoreapplication.cpp:955
#12 0x00007f22b291f780 in QCoreApplication::sendEvent (event=0x7fff4df99290, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#13 QTimerInfoList::activateTimers (this=0x18034f0) at kernel/qeventdispatcher_unix.cpp:621
#14 0x00007f22b291c929 in timerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:193
#15 idleTimerSourceDispatch (source=<optimized out>) at kernel/qeventdispatcher_glib.cpp:240
#16 0x00007f22ac186197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f22ac1863f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#18 0x00007f22ac18649c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#19 0x00007f22b291d2ae in QEventDispatcherGlib::processEvents (this=0x173d6a0, flags=...) at kernel/qeventdispatcher_glib.cpp:450
#20 0x00007f22b2ec7616 in QGuiEventDispatcherGlib::processEvents (this=<optimized out>, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#21 0x00007f22b28eb18f in QEventLoop::processEvents (this=this@entry=0x7fff4df99510, flags=...) at kernel/qeventloop.cpp:149
#22 0x00007f22b28eb4f5 in QEventLoop::exec (this=this@entry=0x7fff4df99510, flags=...) at kernel/qeventloop.cpp:204
#23 0x00007f22b28f14b9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#24 0x00007f22b2e1822c in QApplication::exec () at kernel/qapplication.cpp:3828
#25 0x00000000004117c1 in main (argc=<optimized out>, argv=<optimized out>) at /build/kdevelop-jGcNEc/kdevelop-4.7.3/app/main.cpp:582

Possible duplicates by query: bug 277629, bug 269746, bug 265865, bug 254903.

Reported using DrKonqi
Comment 1 Sven Brauch 2017-09-20 16:49:22 UTC 
Sorry, this part of the application was completely re-written for 5.x, which has been available for a while, and we don't have the resources to provide support for the old codebase. You can try out the 5.1 AppImage from kdevelop.org/download if your distribution doesn't offer packages for 5.1.