Bug 352907

After a system start, I alway finds some core dumps littering my home, coming from kactivitymanagerd. Interesting enough, restarting kactivitymanagerd by hand shows no problems.



Reproducible: Always

Steps to Reproduce:
1. Just restart the system
2.
3.



gdb backtrace:

cova@calvin ~ $ gdb /usr/bin/kactivitymanagerd core.15183
GNU gdb (Gentoo 7.10 vanilla) 7.10
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Reading symbols from /usr/bin/kactivitymanagerd...done.

warning: core file may not match specified executable file.
[New LWP 15183]
[New LWP 15201]
[New LWP 15199]
[New LWP 15200]
[New LWP 15185]

warning: Could not load shared library symbols for linux-vdso.so.1.
Do you need "set solib-search-path" or "set sysroot"?
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/bin/kactivitymanagerd start-daemon'.                                                                                                                   
Program terminated with signal SIGSEGV, Segmentation fault.                                                                                                                        
#0  0x00007f97e8250fa1 in QSqlDatabase::close (this=this@entry=0xa379b8) at kernel/qsqldatabase.cpp:871                                                                            
871     kernel/qsqldatabase.cpp: File o directory non esistente.                                                                                                                   
[Current thread is 1 (Thread 0x7f9802554800 (LWP 15183))]                                                                                                                          
(gdb) bt
#0  0x00007f97e8250fa1 in QSqlDatabase::close (this=this@entry=0xa379b8) at kernel/qsqldatabase.cpp:871                                                                            
#1  0x00007f97e8252179 in QSqlDatabase::~QSqlDatabase (this=0xa379b8, __in_chrg=<optimized out>) at kernel/qsqldatabase.cpp:799                                                    
#2  0x00007f97e825458d in QHashNode<QString, QSqlDatabase>::~QHashNode (this=0xa379a0, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qhash.h:197      
#3  QHash<QString, QSqlDatabase>::deleteNode2 (node=0xa379a0) at ../../include/QtCore/../../src/corelib/tools/qhash.h:545                                                          
#4  0x00007f9800f00059 in QHashData::free_helper(void (*)(QHashData::Node*)) () from /usr/lib64/libQt5Core.so.5                                                                    
#5  0x00007f97e8250c73 in (anonymous namespace)::Q_QGS_dbDict::innerFunction()::Holder::~Holder() () at ../../include/QtCore/../../src/corelib/tools/qhash.h:581                   
#6  0x00007f9800799c78 in ?? () from /lib64/libc.so.6                                                                                                                              
#7  0x00007f9800799cc5 in exit () from /lib64/libc.so.6                                                                                                                            
#8  0x00007f97f9800c2e in QXcbConnection::processXcbEvents (this=0x8307b0) at qxcbconnection.cpp:1246                                                                              
#9  0x00007f98010809fa in QObject::event(QEvent*) () from /usr/lib64/libQt5Core.so.5                                                                                               
#10 0x00007f9801056585 in QCoreApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5                                                                           
#11 0x00007f980105624d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQt5Core.so.5                                                                   
#12 0x00007f9801058cd3 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQt5Core.so.5                                                
#13 0x00007f98010a2352 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5                                            
#14 0x00007f97f98557dd in QUnixEventDispatcherQPA::processEvents (this=<optimized out>, flags=...) at eventdispatchers/qunixeventdispatcher.cpp:62                                 
#15 0x00007f9801054f2a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Core.so.5                                                               
#16 0x00007f980105bcdc in QCoreApplication::exec() () from /usr/lib64/libQt5Core.so.5                                                                                              
#17 0x00007f980135b19c in QGuiApplication::exec () at kernel/qguiapplication.cpp:1507                                                                                              
#18 0x0000000000412e7a in main (argc=2, argv=<optimized out>) at /var/tmp/portage/kde-frameworks/kactivities-5.14.0/work/kactivities-5.14.0/src/service/Application.cpp:414 

kactivitymanagerd-5.14.0 (kf5)

compiled on gentoo

cova@calvin ~ $ gcc --version
gcc (Gentoo 4.9.3 p1.2, pie-0.6.2) 4.9.3

glibc 2.21
qt 5.4.2