Created attachment 126883 [details] crash backtrace SUMMARY I already export LANG as zh_CN.utf8, terminal works fine for Chinese language, but plasma does not. So, I want to enter its system settings center to see what is wrong about it. However, when I click the setting entry, it crashed always. STEPS TO REPRODUCE 1. System Settings 2. Regional Settings / Language OBSERVED RESULT Crashed always EXPECTED RESULT SOFTWARE/OS VERSIONS Linux/KDE Plasma: Slackware64 post 14.2 current (packages by AlienBob) (available in About System) KDE Plasma Version: 5.18.3 KDE Frameworks Version: 5.68.0 Qt Version: 5.13.2 ADDITIONAL INFORMATION
Created attachment 126904 [details] systemsettings5-20200320-112045.kcrash.txt Same bug on Fedora 31. System info: Operating System: Fedora 31 KDE Plasma Version: 5.18.3 KDE Frameworks Version: 5.68.0 Qt Version: 5.13.2 Kernel Version: 5.5.9-200.fc31.x86_64 OS Type: 64-bit Processors: 4 × AMD FX(tm)-9590 Eight-Core Processor Memory: 22,4 ГиБ
All required debug packages has been installed but still Dr.Konqi reports that it's not enough.
When I run "kcmshell5 kcm_translations" in the console I see following errors: file:///usr/share/kpackage/kcms/kcm_translations/contents/ui/main.qml:128:13: QML ColumnLayout: Cannot anchor to an item that isn't a parent or sibling. file:///usr/share/kpackage/kcms/kcm_translations/contents/ui/main.qml:39: TypeError: Cannot read property 'LanguageCode' of null file:///usr/share/kpackage/kcms/kcm_translations/contents/ui/main.qml:43: TypeError: Cannot read property 'display' of null KCrash: Application 'kcmshell5' crashing... KCrash: Attempting to start /usr/libexec/drkonqi from kdeinit sock_file=/run/user/1000/kdeinit5__0
Just to chime in, same here on home-compiled packages on Debian/sid. I am using en_US as locale, so it is not depending on that. I tried to start each kcm manually, which worked, but loading it from the systemsettings5 application failed. (Loop over all modules given by kcmshell5 --list and start the manually ... that is all fine!) Any help would be appreciated. I add the crash report I got.
Created attachment 127041 [details] kcrash save Debian/sid
One more comment: it seems to be a problem with kcm_translations! If I remove/rename the kcm_translations.so module, then systemsettings5 does NOT crash, shows a missing module warning in the Translation tab, but the others can be used. This reduces the culprit considerably I think.
Same on Fedora 32, Plasma 5.18.4.
One more thing. If I run in the console "LANG=C kcmshell5 kcm_translation" - I see no crashes. Running "kcmshell5 kcm_translations" gives me constant crashes.
*** Bug 419261 has been marked as a duplicate of this bug. ***
*** Bug 404518 has been marked as a duplicate of this bug. ***
One of the linked reports claims >weirdly the crash is happening again when I add a CJK language at the bottom of the list. :( Could someone try and get me some reliable 100% reproducible steps, ideally from a clean VM image. The crash trace alone isn't proving super helpful, it's deep in Qt.
*** Bug 419406 has been marked as a duplicate of this bug. ***
*** Bug 419329 has been marked as a duplicate of this bug. ***
Bug 419329 has some clues. Apparently this is caused by https://cgit.kde.org/kirigami.git/commit/?id=9b7cae898ed7d9b58e65035b8216ec6ff78bfa17. I can't reproduce it though.
(In reply to Nate Graham from comment #14) > Bug 419329 has some clues. Apparently this is caused by > https://cgit.kde.org/kirigami.git/commit/ > ?id=9b7cae898ed7d9b58e65035b8216ec6ff78bfa17. I can't reproduce it though. Nice! Reverting this commit actually helps! Thanks for investigating :)
@yarloslav as you're compiling and can reproduce it, could you reapply that diff and change connect(filter, &LanguageChangeEventFilter::languageChangeEvent, this, &KirigamiPlugin::languageChangeEvent); to connect(filter, &LanguageChangeEventFilter::languageChangeEvent, this, &KirigamiPlugin::languageChangeEvent, Qt::QueuedConnection);
*Yaroslav
Sure. One moment.
Adding argument Qt::QueuedConnection to the connect doesn't seem to help, I still see crashes.
(In reply to Nate Graham from comment #14) > Bug 419329 has some clues. Apparently this is caused by > https://cgit.kde.org/kirigami.git/commit/ > ?id=9b7cae898ed7d9b58e65035b8216ec6ff78bfa17. I can't reproduce it though. Confirm, reverting that commit helps.
(In reply to Yaroslav Sidlovsky from comment #8) > One more thing. > If I run in the console "LANG=C kcmshell5 kcm_translation" - I see no > crashes. But it is not possible to add any additional language there. It is able to choose a language from the drop-down list, but the list did not get the setting.
(In reply to Thorsten Oppels from comment #21) > (In reply to Yaroslav Sidlovsky from comment #8) > > One more thing. > > If I run in the console "LANG=C kcmshell5 kcm_translation" - I see no > > crashes. > > But it is not possible to add any additional language there. It is able to > choose a language from the drop-down list, but the list did not get the > setting. Strange, but it's working fine on my system. Just added "Deutsch" to the list.
Am 14.05.20 um 10:30 schrieb Yaroslav Sidlovsky: > https://bugs.kde.org/show_bug.cgi?id=419008 > > --- Comment #22 from Yaroslav Sidlovsky <zawertun@gmail.com> --- > (In reply to Thorsten Oppels from comment #21) >> (In reply to Yaroslav Sidlovsky from comment #8) >>> One more thing. >>> If I run in the console "LANG=C kcmshell5 kcm_translation" - I see no >>> crashes. >> >> But it is not possible to add any additional language there. It is able to >> choose a language from the drop-down list, but the list did not get the >> setting. > > Strange, but it's working fine on my system. Just added "Deutsch" to the list. Get the newest build today (from openSUSE-current) but the issues (crash when call via system-settings and does not add the additional languge when call via kcm_translations) persit.
(In reply to Thorsten Oppels from comment #21) > But it is not possible to add any additional language there. It is able to > choose a language from the drop-down list, but the list did not get the > setting. possibly because bug 419691
Created attachment 129518 [details] New crash information added by DrKonqi systemsettings5 (5.18.5) using Qt 5.12.7 - What I was doing when the application crashed: systemsettings chrashes (segementaion fault) after clicking on "Country/Region & Language" -- Backtrace (Reduced): #4 0x00007f250b1182fe in QQmlData::wasDeleted(QObject const*) (object=0x5604022c09a0) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.2.x86_64/include/QtQml/5.12.7/QtQml/private/../../../../../src/qml/qml/qqmldata_p.h:338 #5 0x00007f250b1182fe in QV4::QObjectWrapper::wrap(QV4::ExecutionEngine*, QObject*) (engine=engine@entry=0x5603ff34c460, object=0x5604022c09a0) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.2.x86_64/include/QtQml/5.12.7/QtQml/private/../../../../../src/qml/jsruntime/qv4qobjectwrapper_p.h:215 #6 0x00007f250b1b673c in QV4::ExecutionEngine::fromVariant(QVariant const&) (this=this@entry=0x5603ff34c460, variant=...) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.2.x86_64/src/qml/jsruntime/qv4engine.cpp:1514 #7 0x00007f250b115be6 in searchContextProperties(QV4::ExecutionEngine*, QQmlContextData*, QV4::String*, bool*, QV4::Value*, QV4::Lookup*, QV4::Lookup*, QQmlEnginePrivate*) (v4=v4@entry=0x5603ff34c460, context=context@entry=0x5604022c76f0, name=<optimized out>, hasProperty=hasProperty@entry=0x7fff72b60d77, base=base@entry=0x0, lookup=lookup@entry=0x0, originalLookup=<optimized out>, ep=<optimized out>) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.2.x86_64/src/qml/jsruntime/qv4qmlcontext.cpp:126 #8 0x00007f250b116a75 in QV4::QQmlContextWrapper::getPropertyAndBase(QV4::QQmlContextWrapper const*, QV4::PropertyKey, QV4::Value const*, bool*, QV4::Value*, QV4::Lookup*) (resource=<optimized out>, id=..., receiver=receiver@entry=0x0, hasProperty=hasProperty@entry=0x7fff72b60d77, base=base@entry=0x0, lookup=0x0, lookup@entry=0x5603ff71f920) at /usr/src/debug/libqt5-qtdeclarative-5.12.7-lp152.2.2.x86_64/src/qml/jsruntime/qv4qmlcontext.cpp:274
*** Bug 423220 has been marked as a duplicate of this bug. ***
*** Bug 421551 has been marked as a duplicate of this bug. ***
Can't reproduce this bug anymore (Plasma-5.19.3, KF-5.72.0). Can someone recheck it?
Works for me too, but I was never able to reproduce the crash in the first place. Can you still reproduce with Plasma 5.19.3 nd Frameworks 5.72, Zhonghua, Norbert, Vasily, Oleg, or Thorsten?
No, with my 5.19.3 packages I cannot reproduce this anymore.
Fantastic news! Thanks folks.
>No, with my 5.19.3 packages I cannot reproduce this anymore. I strongly expect it's from either a Qt or frameworks change rather than Plasma, but good to know.
Well, the crash apparently only occured with Qt 5.13 or lower, as mentioned in bug#404518#c20 . But Plasma 5.19 requires Qt 5.14 as minimum anyway, so it's no wonder why it's not reproducible with that version anymore. Although I don't know about Qt 5.12.9, the last one I tried was 5.12.7 (as shipped in openSUSE Leap 15.2) where it did still crash. (until the kirigami change was reverted in the distribution package to avoid this crash)