Bug 352900

Since the latest updates in kcoreaddons, many applications which use KBookmarkManager crash at the time of exit. The traceback is always the same (see below).

I'm not sure if the fault lies in KBookmarkManager or in KDirWatch, but it's kind of problematic for apps (any app which uses kdialog, such as chromium, will be unable to select files as kdialog will crash on exit).

Application: KDialog (kdialog), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f5db32b19f0 in  () at /usr/lib64/libKF5CoreAddons.so.5
#7  0x00007f5db32b1e23 in KDirWatch::~KDirWatch() () at /usr/lib64/libKF5CoreAddons.so.5
#8  0x00007f5db32b1e69 in KDirWatch::~KDirWatch() () at /usr/lib64/libKF5CoreAddons.so.5
#9  0x00007f5daecb7dd1 in KBookmarkManager::~KBookmarkManager() (this=0x22be880, __in_chrg=<optimized out>) at /home/lb/rpmbuild/BUILD/kbookmarks-5.14.0git.20150812T123205~8d84e79/src/kbookmarkmanager.cpp:135
#10 0x00007f5daecb7dd1 in KBookmarkManager::~KBookmarkManager() (this=0x228db70, __in_chrg=<optimized out>) at /home/lb/rpmbuild/BUILD/kbookmarks-5.14.0git.20150812T123205~8d84e79/src/kbookmarkmanager.cpp:329
#11 0x00007f5daecb7fa9 in KBookmarkManager::~KBookmarkManager() (this=0x228db70, __in_chrg=<optimized out>) at /home/lb/rpmbuild/BUILD/kbookmarks-5.14.0git.20150812T123205~8d84e79/src/kbookmarkmanager.cpp:330
#12 0x00007f5daecb740e in (anonymous namespace)::Q_QGS_s_pSelf::Holder::~Holder() (end=..., begin=...) at /usr/include/qt5/QtCore/qalgorithms.h:317
#13 0x00007f5daecb740e in (anonymous namespace)::Q_QGS_s_pSelf::Holder::~Holder() (c=...) at /usr/include/qt5/QtCore/qalgorithms.h:325
#14 0x00007f5daecb740e in (anonymous namespace)::Q_QGS_s_pSelf::Holder::~Holder() (this=0x7f5daeed9cf0 <(anonymous namespace)::Q_QGS_s_pSelf::innerFunction()::holder>, __in_chrg=<optimized out>) at /home/lb/rpmbuild/BUILD/kbookmarks-5.14.0git.20150812T123205~8d84e79/src/kbookmarkmanager.cpp:60
#15 0x00007f5daecb740e in (anonymous namespace)::Q_QGS_s_pSelf::Holder::~Holder() (this=0x7f5daeed9cf0 <(anonymous namespace)::Q_QGS_s_pSelf::innerFunction()::holder>, __in_chrg=<optimized out>) at /home/lb/rpmbuild/BUILD/kbookmarks-5.14.0git.20150812T123205~8d84e79/src/kbookmarkmanager.cpp:66
#16 0x00007f5daecb740e in (anonymous namespace)::Q_QGS_s_pSelf::Holder::~Holder() () at /usr/lib64/libKF5Bookmarks.so.5
#17 0x00007f5daecb740e in (anonymous namespace)::Q_QGS_s_pSelf::Holder::~Holder() (bookmarksFile=...) at /home/lb/rpmbuild/BUILD/kbookmarks-5.14.0git.20150812T123205~8d84e79/src/kbookmarkmanager.cpp:161
#18 0x00007f5db5d9a0e8 in __run_exit_handlers () at /lib64/libc.so.6
#19 0x00007f5db5d9a135 in  () at /lib64/libc.so.6
#20 0x00007f5db5d84617 in __libc_start_main () at /lib64/libc.so.6
#21 0x00000000004113d9 in _start ()


Reproducible: Always

Steps to Reproduce:
1. Run kdialog --getexistingdirectory ./
2. Close kdialog

Actual Results:  
Crash occurs.

Expected Results:  
Crash does not occur.

kcoreaddons master, revision 14833ae.