| Summary: | k3b-18.08.2 assertion on startup: "first <= rowCount(parent)" in file itemmodels/qabstractitemmodel.cpp, line 2712 | ||
|---|---|---|---|
| Product: | [Applications] k3b | Reporter: | Jaak Ristioja <jaak> |
| Component: | GUI/Usability | Assignee: | k3b developers <k3b> |
| Status: | RESOLVED FIXED | ||
| Severity: | grave | CC: | aacid, michalm, trueg |
| Priority: | NOR | ||
| Version: | 18.08.1 | ||
| Target Milestone: | --- | ||
| Platform: | Gentoo Packages | ||
| OS: | Linux | ||
| Latest Commit: | https://commits.kde.org/k3b/8709a3dcaef941db7467a94cfc77ca68542e2c45 | Version Fixed In: | |
| Sentry Crash Report: | |||
The following Qt commit apparently added this assertion to QAbstractItemModel::beginInsertRows: https://code.qt.io/cgit/qt/qtbase.git/commit/src/corelib/itemmodels/qabstractitemmodel.cpp?id=00c09e752ff7e482e1308e0e34721dc979204595 As a side note, unless you're a developer, it's a bad idea to run Qt in debug mode (like you are) since it means things are going to be slower for no "real good reason". But yes that code looks indeed fishy. Git commit 8709a3dcaef941db7467a94cfc77ca68542e2c45 by Albert Astals Cid. Committed on 14/10/2018 at 22:37. Pushed by aacid into branch 'Applications/18.08'. MetaItemModel: Fix Qt assertion in adding rows Summary: We need the row count to be correct, and since flat models sometimes have no rows, places.count is not a valid row Differential Revision: https://phabricator.kde.org/D16213 M +2 -5 src/k3bmetaitemmodel.cpp https://commits.kde.org/k3b/8709a3dcaef941db7467a94cfc77ca68542e2c45 |
SUMMARY Crashes on startup. STEPS TO REPRODUCE 1. Start K3b OBSERVED RESULT Doesn't start. EXPECTED RESULT Starts up properly. SOFTWARE VERSIONS (available in About System) KDE Plasma Version: 5.13.5 KDE Frameworks Version: 5.50.0 Qt Version: 5.11.1 ADDITIONAL INFORMATION [New Thread 0x7fffdf287700 (LWP 5145)] [New Thread 0x7fffdd0b0700 (LWP 5147)] [New Thread 0x7fffce62d700 (LWP 5148)] 21 21 ASSERT: "first <= rowCount(parent)" in file itemmodels/qabstractitemmodel.cpp, line 2712 Thread 1 "k3b" received signal SIGABRT, Aborted. __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 51 ../sysdeps/unix/sysv/linux/raise.c: No such file or directory. (gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007ffff1cd2f6f in __GI_abort () at abort.c:90 #2 0x00007ffff24ef5c5 in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1842 #3 QMessageLogger::fatal (this=this@entry=0x7fffffffcdc0, msg=msg@entry=0x7ffff27cfb30 "ASSERT: \"%s\" in file %s, line %d") at global/qlogging.cpp:880 #4 0x00007ffff24eed75 in qt_assert (assertion=assertion@entry=0x7ffff2890d4d "first <= rowCount(parent)", file=file@entry=0x7ffff2890a10 "itemmodels/qabstractitemmodel.cpp", line=line@entry=2712) at global/qglobal.cpp:3188 #5 0x00007ffff26a4e14 in QAbstractItemModel::beginInsertRows (this=this@entry=0x555555b2ffd0, parent=..., first=first@entry=1, last=last@entry=1) at itemmodels/qabstractitemmodel.cpp:2712 #6 0x00005555555d65e9 in K3b::MetaItemModel::addSubModel (this=0x555555b2ffd0, name=..., icon=..., model=0x555555d95900, flat=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bmetaitemmodel.cpp:739 #7 0x00005555555dd611 in K3b::PlacesModel::addPlace (this=this@entry=0x555555b2ffd0, name=..., icon=..., rootUrl=...) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bplacesmodel.cpp:177 #8 0x00005555555dd8ae in K3b::PlacesModel::PlacesModel (this=0x555555b2ffd0, parent=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bplacesmodel.cpp:62 #9 0x00005555555df493 in K3b::FileTreeView::FileTreeView (this=0x555555c63d40, parent=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bfiletreeview.cpp:72 #10 0x00005555555ea8f1 in K3b::MainWindow::initView (this=this@entry=0x5555559e48b0) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3b.cpp:522 #11 0x00005555555eb410 in K3b::MainWindow::MainWindow (this=0x5555559e48b0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3b.cpp:237 #12 0x00005555555ce4b4 in K3b::Application::init (this=0x7fffffffd250, commandLineParser=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bapplication.cpp:84 #13 0x00005555555ca0a3 in main (argc=<optimized out>, argv=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/main.cpp:141 (gdb) bt full #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 set = {__val = {0, 140737488342048, 140737488342048, 140737258876986, 272, 8, 0, 17650251434217378048, 88, 140737488342048, 140737488342048, 17650251434217378048, 140737488342048, 140737253893344, 140737253893792, 93824998375376}} pid = <optimized out> tid = <optimized out> ret = <optimized out> #1 0x00007ffff1cd2f6f in __GI_abort () at abort.c:90 save_stage = 2 act = {__sigaction_handler = {sa_handler = 0x555555d97f80, sa_sigaction = 0x555555d97f80}, sa_mask = {__val = {17650251434217378048, 140737488342464, 140737488342232, 3, 140737258754524, 93825000967152, 17650251434217378048, 0, 17650251434217378048, 140737488342464, 140737488342232, 3, 140737488342464, 93824998375376, 140737258755016, 140737431774131}}, sa_flags = 349901056, sa_restorer = 0x7fffffffccd8} sigs = {__val = {32, 0 <repeats 15 times>}} #2 0x00007ffff24ef5c5 in qt_message_fatal (context=..., message=<synthetic pointer>...) at global/qlogging.cpp:1842 No locals. #3 QMessageLogger::fatal (this=this@entry=0x7fffffffcdc0, msg=msg@entry=0x7ffff27cfb30 "ASSERT: \"%s\" in file %s, line %d") at global/qlogging.cpp:880 message = <optimized out> ap = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7fffffffcdc0, reg_save_area = 0x7fffffffcd00}} #4 0x00007ffff24eed75 in qt_assert (assertion=assertion@entry=0x7ffff2890d4d "first <= rowCount(parent)", file=file@entry=0x7ffff2890a10 "itemmodels/qabstractitemmodel.cpp", line=line@entry=2712) at global/qglobal.cpp:3188 No locals. #5 0x00007ffff26a4e14 in QAbstractItemModel::beginInsertRows (this=this@entry=0x555555b2ffd0, parent=..., first=first@entry=1, last=last@entry=1) at itemmodels/qabstractitemmodel.cpp:2712 d = <optimized out> #6 0x00005555555d65e9 in K3b::MetaItemModel::addSubModel (this=0x555555b2ffd0, name=..., icon=..., model=0x555555d95900, flat=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bmetaitemmodel.cpp:739 first = <optimized out> last = 1 place = <optimized out> #7 0x00005555555dd611 in K3b::PlacesModel::addPlace (this=this@entry=0x555555b2ffd0, name=..., icon=..., rootUrl=...) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bplacesmodel.cpp:177 model = 0x555555d98ad0 proxy = 0x555555d95900 #8 0x00005555555dd8ae in K3b::PlacesModel::PlacesModel (this=0x555555b2ffd0, parent=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bplacesmodel.cpp:62 place = {r = 0, c = 0, i = 93825000928672, m = 0x555555d82830} url = {d = 0x555555d9c730} i = 0 i = <optimized out> place = <optimized out> url = <optimized out> #9 0x00005555555df493 in K3b::FileTreeView::FileTreeView (this=0x555555c63d40, parent=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bfiletreeview.cpp:72 delegate = <optimized out> delegate = <optimized out> #10 0x00005555555ea8f1 in K3b::MainWindow::initView (this=this@entry=0x5555559e48b0) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3b.cpp:522 upperSplitter = 0x555555d20640 documentHullLayout = <optimized out> fileTreeView = <optimized out> urlNavigatorAction = <optimized out> #11 0x00005555555eb410 in K3b::MainWindow::MainWindow (this=0x5555559e48b0, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3b.cpp:237 grp = {<KConfigBase> = {_vptr.KConfigBase = 0x555555b6b0e0}, d = {d = 0x7fffffffd160}} grp = <optimized out> #12 0x00005555555ce4b4 in K3b::Application::init (this=0x7fffffffd250, commandLineParser=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/k3bapplication.cpp:84 generalOptions = {<KConfigBase> = {_vptr.KConfigBase = 0x7ffff496a460 <vtable for KConfigGroup+16>}, d = {d = 0x555555a962a0}} splash = 0x555555ac8620 #13 0x00005555555ca0a3 in main (argc=<optimized out>, argv=<optimized out>) at /var/tmp/portage/kde-apps/k3b-18.08.2/work/k3b-18.08.2/src/main.cpp:141 app = {<QApplication> = {<QGuiApplication> = {<QCoreApplication> = {<QObject> = {_vptr.QObject = 0x5555559b0280 <vtable for K3b::Application+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff28a29e0 <qt_meta_stringdata_QObject>, data = 0x7ffff28a28c0 <qt_meta_data_QObject>, static_metacall = 0x7ffff2730540 <QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x5555559e1270}, static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7ffff28a57a0 <qt_meta_stringdata_Qt>, data = 0x7ffff28a2b00 <qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff2b9a0e0 <QObject::staticMetaObject>, stringdata = 0x7ffff289bfe0 <qt_meta_stringdata_QCoreApplication>, data = 0x7ffff289bec0 <qt_meta_data_QCoreApplication>, static_metacall = 0x7ffff26f6c80 <QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self = 0x7fffffffd250}, static staticMetaObject = {d = {superdata = 0x7ffff2ba1c00 <QCoreApplication::staticMetaObject>, stringdata = 0x7ffff32f3180 <qt_meta_stringdata_QGuiApplication>, data = 0x7ffff32f2f00 <qt_meta_data_QGuiApplication>, static_metacall = 0x7ffff2f63b70 <QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff35dbf40 <QGuiApplication::staticMetaObject>, stringdata = 0x7ffff3b30b00 <qt_meta_stringdata_QApplication>, data = 0x7ffff3b30980 <qt_meta_data_QApplication>, static_metacall = 0x7ffff3752880 <QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d = {superdata = 0x7ffff3e8d520 <QApplication::staticMetaObject>, stringdata = 0x555555774ec0 <qt_meta_stringdata_K3b__Application>, data = 0x555555774e20 <qt_meta_data_K3b__Application>, static_metacall = 0x55555572a7f0 <K3b::Application::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, m_cmdLine = {d = 0x555555a9c0c0}, m_core = 0x555555ac7110, m_mainWindow = 0x0} aboutData = {d = 0x555555a59770} parser = 0x555555a9c0c0