yet another backtrace — crash when I close the software

[ariasuni]

When I close the browser, I have this message:

QupZilla: 0 extensions loaded
QupZilla: Crashed :( Saving backtrace in /home/seb/.config/qupzilla/crashlog ...
Backtrace successfuly saved in /home/seb/.config/qupzilla/crashlog/Crash-2013-04-04T19:23:00.txt

I’m on Arch Linux, with the latest version available now. Here the backtrace:

Time: jeu. avr. 4 19:23:00 2013
Qt version: 4.8.4 (compiled with 4.8.4)
QupZilla version: 1.5.0
WebKit version: 537.21

============== BACKTRACE ==============
#0: qupzilla() [0x402dac]
#1: /usr/lib/libc.so.6(+0x35240) [0x7f73acf9b240]
#2: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate20reparentFocusWidgetsEP7QWidget+0x18a) [0x7f73adf0c79a]
#3: /usr/lib/libQtGui.so.4(_ZN7QWidget9setParentEPS_6QFlagsIN2Qt10WindowTypeEE+0x34d) [0x7f73adf206ad]
#4: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate4initEP7QWidget6QFlagsIN2Qt10WindowTypeEE+0x183) [0x7f73adf20f43]
#5: /usr/lib/libQtGui.so.4(_ZN7QWidgetC1EPS_6QFlagsIN2Qt10WindowTypeEE+0x82) [0x7f73adf21512]
#6: /usr/lib/kde4/plugins/styles/oxygen.so(+0x53a5d) [0x7f739cf53a5d]
#7: /usr/lib/kde4/plugins/styles/oxygen.so(+0x52691) [0x7f739cf52691]
#8: /usr/lib/kde4/plugins/styles/oxygen.so(+0x4f9b1) [0x7f739cf4f9b1]
#9: /usr/lib/kde4/plugins/styles/oxygen.so(+0x5007a) [0x7f739cf5007a]
#10: /usr/lib/kde4/plugins/styles/oxygen.so(+0x52cf7) [0x7f739cf52cf7]
#11: /usr/lib/kde4/plugins/styles/oxygen.so(+0x75bae) [0x7f739cf75bae]
#12: /usr/lib/libQtGui.so.4(+0x505356) [0x7f73ae209356]
#13: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate15setStyle_helperEP6QStylebb+0x10a) [0x7f73adf13d5a]
#14: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate12inheritStyleEv+0x1ab) [0x7f73adf1411b]
#15: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate15setStyle_helperEP6QStylebb+0x146) [0x7f73adf13d96]
#16: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate12inheritStyleEv+0x1ab) [0x7f73adf1411b]
#17: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate15setStyle_helperEP6QStylebb+0x146) [0x7f73adf13d96]
#18: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate12inheritStyleEv+0x1ab) [0x7f73adf1411b]
#19: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate15setStyle_helperEP6QStylebb+0x146) [0x7f73adf13d96]
#20: /usr/lib/libQtGui.so.4(_ZN14QWidgetPrivate12inheritStyleEv+0x1ab) [0x7f73adf1411b]
#21: /usr/lib/libQtGui.so.4(_ZN7QWidget9setParentEPS_6QFlagsIN2Qt10WindowTypeEE+0x3c3) [0x7f73adf20723]
#22: /usr/lib/libQtGui.so.4(_ZN7QWidget9setParentEPS_+0x22) [0x7f73adf20ce2]
#23: /usr/lib/libQupZilla.so.1(_ZN6WebTabD2Ev+0xc1) [0x7f73b0e7e3b1]
#24: /usr/lib/libQupZilla.so.1(_ZN6WebTabD0Ev+0x9) [0x7f73b0e7e459]
#25: /usr/lib/libQtCore.so.4(_ZN14QObjectPrivate14deleteChildrenEv+0x82) [0x7f73ad9b7db2]
#26: /usr/lib/libQtGui.so.4(_ZN7QWidgetD2Ev+0x334) [0x7f73adf17cc4]
#27: /usr/lib/libQtGui.so.4(_ZN14QStackedWidgetD0Ev+0x9) [0x7f73ae3224b9]
#28: /usr/lib/libQtCore.so.4(_ZN14QObjectPrivate14deleteChildrenEv+0x82) [0x7f73ad9b7db2]
#29: /usr/lib/libQtGui.so.4(_ZN7QWidgetD2Ev+0x334) [0x7f73adf17cc4]
#30: /usr/lib/libQupZilla.so.1(_ZN9TabWidgetD0Ev+0x9) [0x7f73b0e51c79]
#31: /usr/lib/libQtCore.so.4(_ZN14QObjectPrivate14deleteChildrenEv+0x82) [0x7f73ad9b7db2]
#32: /usr/lib/libQtGui.so.4(_ZN7QWidgetD2Ev+0x334) [0x7f73adf17cc4]
#33: /usr/lib/libQtGui.so.4(_ZN9QSplitterD0Ev+0x9) [0x7f73ae320769]
#34: /usr/lib/libQtCore.so.4(_ZN14QObjectPrivate14deleteChildrenEv+0x82) [0x7f73ad9b7db2]
#35: /usr/lib/libQtGui.so.4(_ZN7QWidgetD2Ev+0x334) [0x7f73adf17cc4]
#36: /usr/lib/libQtGui.so.4(_ZN7QWidgetD0Ev+0x9) [0x7f73adf18019]
#37: /usr/lib/libQtCore.so.4(_ZN14QObjectPrivate14deleteChildrenEv+0x82) [0x7f73ad9b7db2]
#38: /usr/lib/libQtGui.so.4(_ZN7QWidgetD2Ev+0x334) [0x7f73adf17cc4]
#39: /usr/lib/libQupZilla.so.1(_ZN8QupZillaD0Ev+0x9) [0x7f73b0dc80f9]
#40: /usr/lib/libQtCore.so.4(_ZN7QObject5eventEP6QEvent+0x298) [0x7f73ad9ba098]
#41: /usr/lib/libQtGui.so.4(_ZN7QWidget5eventEP6QEvent+0x6a) [0x7f73adf1d18a]
#42: /usr/lib/libQtGui.so.4(_ZN11QMainWindow5eventEP6QEvent+0x6b) [0x7f73ae2e225b]
#43: /usr/lib/libQupZilla.so.1(_ZN8QupZilla5eventEP6QEvent+0x1e) [0x7f73b0dc6d3e]
#44: /usr/lib/libQtGui.so.4(_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent+0xac) [0x7f73adece18c]
#45: /usr/lib/libQtGui.so.4(_ZN12QApplication6notifyEP7QObjectP6QEvent+0x13a) [0x7f73aded260a]
#46: /usr/lib/libQtCore.so.4(_ZN16QCoreApplication14notifyInternalEP7QObjectP6QEvent+0x8e) [0x7f73ad9a56ae]
#47: /usr/lib/libQtCore.so.4(_ZN23QCoreApplicationPrivate16sendPostedEventsEP7QObjectiP11QThreadData+0x421) [0x7f73ad9a9011]
#48: /usr/lib/libQtCore.so.4(_ZN16QCoreApplication4execEv+0xbf) [0x7f73ad9a935f]
#49: qupzilla() [0x402818]
#50: /usr/lib/libc.so.6(__libc_start_main+0xf5) [0x7f73acf87a15]
#51: qupzilla() [0x402af1]

I think all the needed informations are on the backtrace.

[JHooverman]

Are you able to reproduce this crash? What did you do before this happened? Did you visit a specific webpage?Would you post the entries of History-> Recently Visited?

[nowrep]

Looks like some particular issue with KDE's Oxygen theme.
What is your KDE version?

[ariasuni]

@JHooverman: the bug append even if I open and close the browser without doing anything else.

I’m on KDE 4.10.1. KDE 4.10.2 will be available soon, so I’ll test it again. I use the default Oxygen colors.

[JHooverman]

Will it be possible to switch to another theme like "Linux default" and see, if that crash still occurs?

[ariasuni]

It crash with any theme.

[JHooverman]

You might try to create a new fresh profile or a fresh .qupzilla directory to see, if your issue is related to QupZilla or to a broken settings file or profile.

[ariasuni]

It’s the «tab on top» option that makes QupZilla crash.

Oh, I've forgotten to tell you that when I close QupZilla, a systemd-core process spawn and eat all the memory (at least on my machine), so it freezes my computer and I need to reboot (and lost what I'm doing…)

[nowrep]

Oh, I've forgotten to tell you that when I close QupZilla, a systemd-core process spawn and eat all the memory (at least on my machine), so it freezes my computer and I need to reboot (and lost what I'm doing…)

Yeah, but this is systemd's issue ...

It’s the «tab on top» option that makes QupZilla crash.

Thanks for finding the reason, I'll take a look at it.

[nowrep]

Can you please try this?

diff --git a/src/lib/webview/webtab.cpp b/src/lib/webview/webtab.cpp
index abbcbfc..05abfc1 100644
--- a/src/lib/webview/webtab.cpp
+++ b/src/lib/webview/webtab.cpp
@@ -365,7 +365,7 @@ void WebTab::disconnectObjects()

 WebTab::~WebTab()
 {
-    if (m_navigationContainer && qzSettings->tabsOnTop) {
+    if (m_navigationContainer && qzSettings->tabsOnTop && !mApp->isClosing()) {
         m_layout->removeWidget(m_navigationContainer);

         // Needed to prevent flickering when closing tabs

[ariasuni]

It works!