owncloud-client 1.8.4 crashes on Fedora 22 since qt5 update to 5.5.0

[gjanssens]

A couple of days ago my Fedora 22 (64-bit) got updated to qt5 version 5.5.0. Since then the owncloud-client fails to start. It halts with a SIGSEGV.

OS: Fedora 22, 64-bit
Client version: owncloud-client 1.8.4 from the isv_ownCloud_desktop repository
Qt version: 5.5.0-15.fc22.x86_64

gdb backtrace:
gdb owncloud
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Reading symbols from owncloud...Reading symbols from /usr/lib/debug/usr/bin/owncloud.debug...done.
done.
(gdb) run
Starting program: /usr/bin/owncloud
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
Detaching after fork from child process 31243.
[New Thread 0x7fffeacd4700 (LWP 31241)]
[New Thread 0x7ffff0fe5700 (LWP 31240)]

Program received signal SIGSEGV, Segmentation fault.
0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ()
#1 0x0000003f868d3fc6 in QMenu::actionEvent(QActionEvent*) (this=0xcc4a00, e=0x7fffffffd4a0) at widgets/qmenu.cpp:3186
#2 0x0000003f867975d8 in QWidget::event(QEvent*) (this=this@entry=0xcc4a00, event=event@entry=0x7fffffffd4a0) at kernel/qwidget.cpp:9034
#3 0x0000003f868da023 in QMenu::event(QEvent*) (this=0xcc4a00, e=0x7fffffffd4a0) at widgets/qmenu.cpp:2650
#4 0x0000003f867544ac in QApplicationPrivate::notify_helper(QObject_, QEvent_) (this=0x7d9710, receiver=0xcc4a00, e=0x7fffffffd4a0)

at kernel/qapplication.cpp:3717

#5 0x0000003f86759976 in QApplication::notify(QObject_, QEvent_) (this=0x7fffffffd8c0, receiver=0xcc4a00, e=0x7fffffffd4a0) at kernel/qapplication.cpp:3500
#6 0x0000003f84c8361b in QCoreApplication::notifyInternal(QObject_, QEvent_) (this=0x7fffffffd8c0, receiver=receiver@entry=0xcc4a00, event=event@entry=0x7fffffffd4a0) at kernel/qcoreapplication.cpp:965
#7 0x0000003f8678e855 in QWidget::insertAction(QAction_, QAction_) (event=0x7fffffffd4a0, receiver=0xcc4a00)

at ../../src/corelib/kernel/qcoreapplication.h:224

#8 0x0000003f8678e855 in QWidget::insertAction(QAction_, QAction_) (this=0xcc4a00, before=before@entry=0x0, action=0xcc8b00) at kernel/qwidget.cpp:3277
#9 0x0000003f8678e9aa in QWidget::addAction(QAction*) (this=, action=) at kernel/qwidget.cpp:3228
#10 0x00000000004978a0 in OCC::ownCloudGui::setupContextMenu() (this=this@entry=0x90aba0) at /usr/src/debug/owncloudclient-1.8.4/src/gui/owncloudgui.cpp:305
#11 0x000000000049889e in OCC::ownCloudGui::ownCloudGui(OCC::Application*) (this=0x90aba0, parent=0x7fffffffd8c0)

at /usr/src/debug/owncloudclient-1.8.4/src/gui/owncloudgui.cpp:70

#12 0x000000000045f967 in OCC::Application::Application(int&, char**) (this=0x7fffffffd8c0, argc=, argv=)

at /usr/src/debug/owncloudclient-1.8.4/src/gui/application.cpp:157

#13 0x000000000044ff38 in main(int, char**) (argc=1, argv=0x7fffffffda98) at /usr/src/debug/owncloudclient-1.8.4/src/gui/main.cpp:53

(gdb)

[guruz]

Could you please try 2.0? It is released some minutes ago.

[guruz]

@dragotin @ckamm

[todoleza]

Hello,
even owncloud-client-2.0.0-1.1.x86_64 with qt5-qtbase-5.5.0-15.fc22.x86_64 crashes with segfault.
I don't have complete traceback unless I install >3GB debug symbols.

#0  0x0000000000000000 in ?? ()
#1  0x00007ffff74d4fc6 in QMenu::actionEvent(QActionEvent*) () from /lib64/libQt5Widgets.so.5
#2  0x00007ffff73985d8 in QWidget::event(QEvent*) () from /lib64/libQt5Widgets.so.5
#3  0x00007ffff74db023 in QMenu::event(QEvent*) () from /lib64/libQt5Widgets.so.5
#4  0x00007ffff73554ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#5  0x00007ffff735a976 in QApplication::notify(QObject*, QEvent*) () from /lib64/libQt5Widgets.so.5
#6  0x00000031d648361b in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /lib64/libQt5Core.so.5
#7  0x00007ffff738f855 in QWidget::insertAction(QAction*, QAction*) () from /lib64/libQt5Widgets.so.5
#8  0x00007ffff74d0af0 in QMenu::addAction(QString const&) () from /lib64/libQt5Widgets.so.5
#9  0x00000000004aea78 in OCC::ownCloudGui::addAccountContextMenu (this=this@entry=0x956240, accountState=..., menu=menu@entry=0xc786d0, 
    separateMenu=separateMenu@entry=false) at /usr/src/debug/owncloudclient-2.0.0/src/gui/owncloudgui.cpp:308
#10 0x00000000004b00de in OCC::ownCloudGui::setupContextMenu (this=this@entry=0x956240)
    at /usr/src/debug/owncloudclient-2.0.0/src/gui/owncloudgui.cpp:397
#11 0x00000000004b06fb in OCC::ownCloudGui::ownCloudGui (this=0x956240, parent=0x7fffffffdc50)
    at /usr/src/debug/owncloudclient-2.0.0/src/gui/owncloudgui.cpp:73
#12 0x000000000046b5dd in OCC::Application::Application (this=0x7fffffffdc50, argc=<optimized out>, argv=<optimized out>)
    at /usr/src/debug/owncloudclient-2.0.0/src/gui/application.cpp:147
#13 0x000000000045bb98 in main (argc=1, argv=0x7fffffffde28) at /usr/src/debug/owncloudclient-2.0.0/src/gui/main.cpp:53

[dragotin]

Can somebody also report that with fedora upstream? On openSUSE we do not see crashes with Qt 5.5.0, so it might be something special for Fedora?

[gjanssens]

https://bugzilla.redhat.com/show_bug.cgi?id=1257679

[fduraibi]

i think this is the same bug as #3672

and thanks @gjanssens for the link to redhat bug report.

[guruz]

Suggestion: Make some noise on https://bugzilla.redhat.com/show_bug.cgi?id=1257679 :-)

[ckamm]

I agree that this is the same as #3672, let's talk there. Thanks everyone!