Bug 425643

Summary:	Muon Package Manager is crashed when I want install package digikam
Product:	[Unmaintained] muon	Reporter:	554555116
Component:	muon	Assignee:	Jonathan Thomas <echidnaman>
Status:	RESOLVED UNMAINTAINED
Severity:	crash	CC:	adrlopgal, silhusk, thetechguy1011
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.8.0
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	New crash information added by DrKonqi New crash information added by DrKonqi

Description 554555116 2020-08-21 14:47:56 UTC

Application: muon (5.8.0)

Qt Version: 5.14.2
Frameworks Version: 5.73.0
Operating System: Linux 5.4.0-42-generic x86_64
Windowing system: X11
Distribution: KDE neon User Edition 5.19

-- Information about the crash:
First of all, apologize for the bad English, because English is not my native language, so I have to resort to machine translation.
- What I was doing when the application crashed:
When I tried to use Muon Package Manager to install package digikam,it crashed.After that,I open the Muon Package Manager,package digikam has been installed.Then I reinstalled the package digikam without any errors.I want to know why this is.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Muon 软件包管理器 (muon), signal: Segmentation fault

[KCrash Handler]
#4  0x00007fd22a19f25f in QApt::Backend::package (this=this@entry=0x55adfb017b90, name=...) at /usr/include/apt-pkg/string_view.h:39
#5  0x00007fd22a1a1f04 in QApt::Backend::search (this=0x55adfb017b90, searchString=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:91
#6  0x000055adf98b9f52 in PackageProxyModel::search (this=0x55adfab5b570, searchText=...) at ./src/PackageModel/PackageProxyModel.cpp:71
#7  0x000055adf98beace in PackageWidget::startSearch (this=0x55adfab632b0) at ./src/PackageModel/PackageWidget.cpp:409
#8  PackageWidget::startSearch (this=0x55adfab632b0) at ./src/PackageModel/PackageWidget.cpp:406
#9  0x000055adf98ad7e4 in MainWindow::reload (this=0x55adfab0f2d0) at ./src/MainWindow.cpp:370
#10 0x000055adf98ad8c5 in MainWindow::transactionStatusChanged (this=0x55adfab0f2d0, status=<optimized out>) at ./src/MainWindow.cpp:304
#11 0x000055adf98a7e6b in MainWindow::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at ./obj-x86_64-linux-gnu/src/muon_autogen/EWIEGA46WW/moc_MainWindow.cpp:180
#12 0x00007fd2289e6550 in doActivate<false> (sender=0x55adfb7812e0, signal_index=4, argv=0x7ffd4c903c90) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#13 0x00007fd2289e0af7 in QMetaObject::activate (sender=sender@entry=0x55adfb7812e0, m=m@entry=0x7fd22a1e6900 <QApt::Transaction::staticMetaObject>, local_signal_index=local_signal_index@entry=1, argv=argv@entry=0x7ffd4c903c90) at kernel/qobject.cpp:3930
#14 0x00007fd22a19b8b5 in QApt::Transaction::statusChanged (this=this@entry=0x55adfb7812e0, _t1=<optimized out>) at ./obj-x86_64-linux-gnu/src/QApt_autogen/EWIEGA46WW/moc_transaction.cpp:536
#15 0x00007fd22a1c2d46 in QApt::Transaction::updateProperty (this=0x55adfb7812e0, type=<optimized out>, variant=...) at ./src/transaction.cpp:634
#16 0x00007fd22a19c340 in QApt::Transaction::qt_static_metacall (_o=0x55adfb7812e0, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at ./obj-x86_64-linux-gnu/src/QApt_autogen/EWIEGA46WW/moc_transaction.cpp:287
#17 0x00007fd2289e6550 in doActivate<false> (sender=0x55adfb917640, signal_index=7, argv=0x7ffd4c903eb0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#18 0x00007fd2289e0af7 in QMetaObject::activate (sender=<optimized out>, m=m@entry=0x7fd22a1e6b60 <OrgKubuntuQaptworker3TransactionInterface::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7ffd4c903eb0) at kernel/qobject.cpp:3930
#19 0x00007fd22a1cf14f in OrgKubuntuQaptworker3TransactionInterface::propertyChanged (_t2=..., _t1=<optimized out>, this=<optimized out>) at ./obj-x86_64-linux-gnu/src/transactioninterface_p.moc:376
#20 OrgKubuntuQaptworker3TransactionInterface::qt_static_metacall (_o=0x55adfb917640, _c=<optimized out>, _id=<optimized out>, _a=0x7ffd4c904010) at ./obj-x86_64-linux-gnu/src/transactioninterface_p.moc:189
#21 0x00007fd22a1d03d3 in OrgKubuntuQaptworker3TransactionInterface::qt_metacall (this=0x55adfb917640, _c=QMetaObject::InvokeMetaMethod, _id=4, _a=0x7ffd4c904010) at ./obj-x86_64-linux-gnu/src/transactioninterface_p.moc:317
#22 0x00007fd22803f4ab in QDBusConnectionPrivate::deliverCall (this=<optimized out>, object=<optimized out>, msg=..., metaTypes=..., slotIdx=<optimized out>) at qdbusintegrator.cpp:1001
#23 0x00007fd2289de2a9 in QObject::event (this=0x55adfb917640, e=0x7fd214028de0) at kernel/qobject.cpp:1339
#24 0x00007fd2294c0cc3 in QApplicationPrivate::notify_helper (this=this@entry=0x55adfaa8f8e0, receiver=receiver@entry=0x55adfb917640, e=e@entry=0x7fd214028de0) at kernel/qapplication.cpp:3685
#25 0x00007fd2294c9f40 in QApplication::notify (this=0x7ffd4c9046e0, receiver=0x55adfb917640, e=0x7fd214028de0) at kernel/qapplication.cpp:3431
#26 0x00007fd2289b078a in QCoreApplication::notifyInternal2 (receiver=0x55adfb917640, event=0x7fd214028de0) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:153
#27 0x00007fd2289b2f74 in QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55adfaa8fa50) at kernel/qcoreapplication.cpp:1815
#28 0x00007fd228a09b87 in postEventSourceDispatch (s=0x55adfaaefb30) at kernel/qeventdispatcher_glib.cpp:277
#29 0x00007fd226fa8fbd in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007fd226fa9240 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007fd226fa92e3 in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fd228a091e2 in QEventDispatcherGlib::processEvents (this=0x55adfaafd8d0, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#33 0x00007fd2289af24b in QEventLoop::exec (this=this@entry=0x7ffd4c904610, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:136
#34 0x00007fd2289b7296 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:118
#35 0x000055adf98a5ebc in main (argc=<optimized out>, argv=<optimized out>) at ./src/main.cpp:62
[Inferior 1 (process 2965) detached]

Possible duplicates by query: bug 418044, bug 410176, bug 407038, bug 405328, bug 400251.

Reported using DrKonqi

Comment 1 Adrián López Galera 2022-02-22 23:06:39 UTC

Created attachment 147063 [details]
New crash information added by DrKonqi

muon (5.8.0) using Qt 5.15.3

- What I was doing when the application crashed:
Check for updates while a terminal window was open.

- Custom settings of the application:
I have many PPAs. 
GPG error: https://download.mono-project.com/repo/ubuntu stable-focal InRelease: NO_PUBKEY A6A19B38D3D831EF

-- Backtrace (Reduced):
#4  0x00007f621906f25f in QApt::Backend::package (this=this@entry=0x55dac154bb80, name=...) at /usr/include/apt-pkg/string_view.h:39
#5  0x00007f6219071f04 in QApt::Backend::search (this=0x55dac154bb80, searchString=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:91
#6  0x000055dac0157f52 in PackageProxyModel::search (this=0x55dac14c9760, searchText=...) at ./src/PackageModel/PackageProxyModel.cpp:71
#7  0x000055dac015cace in PackageWidget::startSearch (this=0x55dac1495e00) at ./src/PackageModel/PackageWidget.cpp:409
#8  PackageWidget::startSearch (this=0x55dac1495e00) at ./src/PackageModel/PackageWidget.cpp:406

Comment 2 Carlo Vanini 2022-02-24 20:31:33 UTC

(In reply to Adrián López Galera from comment #1)
> I have many PPAs. 
> GPG error: https://download.mono-project.com/repo/ubuntu stable-focal
> InRelease: NO_PUBKEY A6A19B38D3D831EF

Thank you for your report.
From this error it looks like you didn't add the repository key for one of the PPAs (or the key has changed). Is that correct?

Nevertheless, the crash is probably unrelated to that. It is caused by an existing race between the search and update of the list of available packages.

Comment 3 Ham L. 2022-10-20 16:28:16 UTC

Created attachment 153060 [details]
New crash information added by DrKonqi

muon (5.8.0) using Qt 5.15.6

Muon was carrying out a regular installation of Synaptic. Upon completion, the app crashed, but Synaptic is installed.

-- Backtrace (Reduced):
#4  0x00007fcebcf3725f in QApt::Backend::package (this=this@entry=0x55a8d5e10860, name=...) at /usr/include/apt-pkg/string_view.h:39
#5  0x00007fcebcf39f04 in QApt::Backend::search (this=0x55a8d5e10860, searchString=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qstring.h:91
#6  0x000055a8d4482f52 in PackageProxyModel::search (this=0x55a8d5d5b6a0, searchText=...) at ./src/PackageModel/PackageProxyModel.cpp:71
#7  0x000055a8d4487ace in PackageWidget::startSearch (this=0x55a8d5dd1ad0) at ./src/PackageModel/PackageWidget.cpp:409
#8  PackageWidget::startSearch (this=0x55a8d5dd1ad0) at ./src/PackageModel/PackageWidget.cpp:406

Comment 4 Christoph Cullmann 2024-09-23 18:22:15 UTC

Muon is no longer maintained, please switch no a supported alternative like https://apps.kde.org/discover/ or the package manager native no your system.

Sorry for the inconvenience.