[kmail2] [Bug 346177] New: kmail segfaults when another instance of KMail is already running

[Daniel Vrátil]

https://bugs.kde.org/show_bug.cgi?id=346177

            Bug ID: 346177
           Summary: kmail segfaults when another instance of KMail is
                    already running
           Product: kmail2
           Version: Git (master)
          Platform: Other
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: kdepim-bugs at kde.org
          Reporter: dvratil at kde.org
            Blocks: 346175

Run kmail, wait for it to start, then try to run start another kmail process.

Actual result:
The new process crashes right at start

Expected results:
Window of the already running instance is activated and the newly started kmail
process quits.


#0  0x00007fffe27e8d4c in QScopedPointer<QObjectData,
QScopedPointerDeleter<QObjectData> >::data() const (this=0x8) at
../../include/QtCore/../../../../qtbase/src/corelib/tools/qscopedpointer.h:135
#1  0x00007fffe2a7db11 in qGetPtrHelper<QScopedPointer<QObjectData>
>(QScopedPointer<QObjectData, QScopedPointerDeleter<QObjectData> > const&)
(p=...)
    at ../../include/QtCore/../../../../qtbase/src/corelib/global/qglobal.h:962
#2  0x00007fffe2a7dcd0 in QObject::d_func() const (this=0x0) at
/home/dvratil/devel/Qt/qt5/qtbase/src/corelib/kernel/qobject.h:110
#3  0x00007fffe2a7481c in QObject::thread() const (this=0x0) at
/home/dvratil/devel/Qt/qt5/qtbase/src/corelib/kernel/qobject.cpp:1412
#4  0x00007fffe57329ec in
KWindowSystemStaticContainer::KWindowSystemStaticContainer()
(this=0x7fffe597b290 <(anonymous
namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>)
    at
/home/dvratil/devel/KDE/frameworks/kwindowsystem/src/kwindowsystem.cpp:52
#5  0x00007fffe5731490 in (anonymous
namespace)::Q_QGS_g_kwmInstanceContainer::Holder::Holder() (this=0x7fffe597b290
<(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction()::holder>)
    at
/home/dvratil/devel/KDE/frameworks/kwindowsystem/src/kwindowsystem.cpp:58
#6  0x00007fffe57314fd in (anonymous
namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction() () at
/home/dvratil/devel/KDE/frameworks/kwindowsystem/src/kwindowsystem.cpp:58
#7  0x00007fffe5732b80 in QGlobalStatic<KWindowSystemStaticContainer,
(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::innerFunction(),
(anonymous namespace)::Q_QGS_g_kwmInstanceContainer::guard>::operator()()
(this=0x7fffe597b280 <g_kwmInstanceContainer>) at
/opt/qt5/include/QtCore/qglobalstatic.h:129
#8  0x00007fffe5731974 in KWindowSystem::d_func() () at
/home/dvratil/devel/KDE/frameworks/kwindowsystem/src/kwindowsystem.cpp:343
#9  0x00007fffe57324a4 in
KWindowSystem::allowExternalProcessWindowActivation(int) (pid=-1) at
/home/dvratil/devel/KDE/frameworks/kwindowsystem/src/kwindowsystem.cpp:639
#10 0x00007ffff7bd0f0e in
KontactInterface::PimUniqueApplication::start(QFlags<KUniqueApplication::StartFlag>)
(flags=...) at
/home/dvratil/devel/KDE/PIM/frameworks/kontactinterface/src/pimuniqueapplication.cpp:105
#11 0x00007ffff7bd0cd3 in KontactInterface::PimUniqueApplication::start() () at
/home/dvratil/devel/KDE/PIM/frameworks/kontactinterface/src/pimuniqueapplication.cpp:76
#12 0x0000000000404f42 in main(int, char**) (argc=1, argv=0x7fffffffd978) at
/home/dvratil/devel/KDE/PIM/frameworks/kdepim/kmail/main.cpp:119

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