328578 – crash when opening settings

Bug 328578 - crash when opening settings

Summary: crash when opening settings

Status:	RESOLVED FIXED

Alias:	None

Product:	digikam
Classification:	Applications
Component:	Setup-Collections (show other bugs)
Version:	3.5.0
Platform:	Fedora RPMs Linux

Importance:	NOR crash
Target Milestone:	---
Assignee:	Digikam Developers

URL:
Keywords:

Depends on:
Blocks:

Reported:	2013-12-09 15:14 UTC by nucleo
Modified:	2017-08-10 10:51 UTC (History)
CC List:	7 users (show)

See Also:
Latest Commit:
Version Fixed In:	4.0.0
Sentry Crash Report:

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Description nucleo 2013-12-09 15:14:34 UTC

digiKam 4.0.0-beta1 crashes when opening settings.

Reproducible: Always

Actual Results:  
Program received signal SIGSEGV, Segmentation fault.
QFont::QFont (this=0xbf800044) at text/qfont.cpp:791
791	    : d(QApplication::font().d.data()), resolve_mask(0)
(gdb) bt
#0  QFont::QFont (this=0xbf800044) at text/qfont.cpp:791
#1  0xb4bedffa in QStyleOption::QStyleOption (this=this@entry=0xbf80016c, version=version@entry=4, type=type@entry=12)
    at styles/qstyleoption.cpp:163
#2  0xb4bf055e in QStyleOptionViewItem::QStyleOptionViewItem (this=this@entry=0xbf80016c, version=version@entry=4)
    at styles/qstyleoption.cpp:4440
#3  0xb4bf05e5 in QStyleOptionViewItemV2::QStyleOptionViewItemV2 (this=this@entry=0xbf80016c, version=version@entry=4)
    at styles/qstyleoption.cpp:874
#4  0xb4bf0686 in QStyleOptionViewItemV3::QStyleOptionViewItemV3 (this=this@entry=0xbf80016c, version=version@entry=4)
    at styles/qstyleoption.cpp:992
#5  0xb4bf06e7 in QStyleOptionViewItemV4::QStyleOptionViewItemV4 (this=0xbf80016c) at styles/qstyleoption.cpp:1103
#6  0xb542721e in optionView (this=0xb5dfce8, index=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:166
#7  KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:187
#8  0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#9  0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#10 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#11 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#12 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#13 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#14 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#15 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#16 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#17 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#18 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#19 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#20 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#21 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#22 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
---Type <return> to continue, or q <return> to quit---
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#23 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#24 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#25 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#26 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#27 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#28 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#29 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#30 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#31 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#32 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#33 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#34 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#35 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#36 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#37 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#38 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#39 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#40 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#41 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#42 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#43 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
---Type <return> to continue, or q <return> to quit---
#44 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#45 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#46 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#47 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#48 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#49 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#50 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#51 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#52 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#53 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#54 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#55 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#56 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#57 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#58 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#59 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#60 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#61 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#62 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#63 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#64 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
    at /usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:194
#65 0xb54273f0 in KWidgetItemDelegatePrivate::initializeModel (this=this@entry=0xb5dfce8, parent=...)
---Type <return> to continue, or q <return> to quit---q
 at /usr/src/debug/kdeliQuit
(gdb) q

Comment 1 caulier.gilles 2013-12-09 17:41:21 UTC

Sound like a problem with widget style. It crash in Qt (QFont class)...

It's not a digiKam problem. Perhaps a binary compatibility issue on your computer due to recent update.

Check your system...

Comment 2 nucleo 2013-12-09 17:48:02 UTC

(In reply to comment #1)
> It's not a digiKam problem. Perhaps a binary compatibility issue on your
> computer due to recent update.
> 
> Check your system...

This is impossible, all components have exact version dependencies on qt and kde libs. All libs used at build time are actually installed.

Comment 3 nucleo 2013-12-09 18:02:44 UTC

[17:11:14] <@Kevin_Kofler> nucleo: Infinite recursion… I think the model for that tree view is wrong.
[17:11:43] <@Kevin_Kofler> nucleo: I don't know where it comes from, if it's a stock model (like KDirItemModel or how it's called) or something from Digikam.

Comment 4 caulier.gilles 2013-12-09 18:20:56 UTC

yes, but here it do not crash. Some it's not a the real problem.

Check your Qt/KDE widget style...

Gilles Caulier

Comment 5 nucleo 2013-12-09 18:40:35 UTC

Maybe this problem specific to KDE 4.11.97?
I downgraded digiKam to 3.5.0 that also built against 4.11.97 and it also crashes.

Comment 6 caulier.gilles 2013-12-09 18:44:03 UTC

Yes, probably KDELibs bugs :

/usr/src/debug/kdelibs-4.11.97/kdeui/itemviews/kwidgetitemdelegate.cpp:166

Gilles Caulier

Comment 7 nucleo 2013-12-09 18:48:36 UTC

Then reassign bug to kdelibs?

Comment 8 Rex Dieter 2013-12-09 18:57:34 UTC

Re-assigned to kdelibs

Comment 9 Teemu Rytilahti 2013-12-11 00:14:38 UTC

The problem is caused by KWidgetItemDelegatePrivate::initializeModel(const QModelIndex &parent) calling itself again when the model returns ok for hasChildren.

if (index.isValid() && model->hasChildren(index)) {
            initializeModel(index);
        }

 In this case Digikam::SetupCollectionModel doesn't reimplement hasChildren, it will fall back to call this:
bool QAbstractItemModel::hasChildren(const QModelIndex &parent) const
{
    return (rowCount(parent) > 0) && (columnCount(parent) > 0);
}

And while parent.row() == 0 and it's checking against Item::parentId, which most likely is zero for your collection and then the same thing again.

Comment 10 Teemu Rytilahti 2013-12-11 00:29:14 UTC

I would say that this sounds more like a bug in digikam's model than in kdelibs. Or should initializeModel() check that the index is not completely the same before calling itself again?

Here's some printf-debugging output I was using:
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: QModelIndex(0,0,0xffffffffffffffff,Digikam::SetupCollectionModel(0x51f2540) )
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: internalId: -1
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: parentId: 0
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: QModelIndex(0,0,0xffffffffffffffff,Digikam::SetupCollectionModel(0x51f2540) )
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: internalId: -1
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: parentId: 0
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: QModelIndex(0,0,0xffffffffffffffff,Digikam::SetupCollectionModel(0x51f2540) )
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: internalId: -1
digikam(6267)/digikam (core) Digikam::SetupCollectionModel::rowCount: parentId: 0

parentId is just index.row() here. And in my collection (due to because it's a local one) the parentId inside of Item is set to 0.

    foreach(const Item& item, m_collections)
    {
        if (!item.deleted && item.parentId == parentId)
        {
            ++rowCount;
        }
    }

Comment 11 demm 2013-12-11 00:41:31 UTC

As requested on IRC by teprrr, I can confirm this bug with digikam 3.5.0 and kdelibs 4.11.97.
http://pastebin.kde.org/pkrglow9p
This segfault/crash does NOT happen on a system with the same distro, same Qt4, gcc, and digikam, only that system runs 4.11.4.  Digikam build for that version (just to be clear, digikam was rebuild for 4.11 beta1).

Comment 12 demm 2013-12-12 09:38:32 UTC

Issue is fixed here with kdelibs 4.12.0 build.

Comment 13 caulier.gilles 2013-12-12 09:56:38 UTC

Thanks for your feedback

Gilles Caulier

Comment 14 Teemu Rytilahti 2013-12-16 01:46:18 UTC

*** Bug 328835 has been marked as a duplicate of this bug. ***

Comment 15 nucleo 2013-12-18 19:58:57 UTC

I confirm that no crash with kdelibs-4.12.0.