Only seems to trigger with ASAN enabled, might be because it is trying to use uninitialized memory and ASAN zeroes out memory AFAIK: ==447177==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000068 (pc 0x55ddebab2a31 bp 0x7ffcd73eeca0 sp 0x7ffcd73eec90 T0) ==447177==The signal is caused by a READ memory access. ==447177==Hint: address points to the zero page. #0 0x55ddebab2a31 in Konsole::TerminalDisplay::lines() const ../src/terminalDisplay/TerminalDisplay.h:174 #1 0x55ddebab1664 in Konsole::TerminalScrollBar::setScroll(int, int) ../src/terminalDisplay/TerminalScrollBar.cpp:57 #2 0x55ddeba6a4fd in Konsole::TerminalDisplay::updateImage() ../src/terminalDisplay/TerminalDisplay.cpp:526 #3 0x55ddebaa0f02 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (Konsole::TerminalDisplay::*)()>::call(void (Konsole::TerminalDisplay::*)(), Konsole::TerminalDisplay*, void**) /usr/include/qt/QtCore/qobjectdefs_impl.h:152 #4 0x55ddeba9fee9 in void QtPrivate::FunctionPointer<void (Konsole::TerminalDisplay::*)()>::call<QtPrivate::List<>, void>(void (Konsole::TerminalDisplay::*)(), Konsole::TerminalDisplay*, void**) /usr/include/qt/QtCore/qobjectdefs_impl.h:185 #5 0x55ddeba9dc51 in QtPrivate::QSlotObject<void (Konsole::TerminalDisplay::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) /usr/include/qt/QtCore/qobjectdefs_impl.h:418 #6 0x7fd3a2f9275a (/usr/lib/libQt5Core.so.5+0x2f075a) #7 0x55ddeb8eeede in Konsole::ScreenWindow::outputChanged() src/konsoleprivate_autogen/EWIEGA46WW/moc_ScreenWindow.cpp:186 #8 0x55ddeb9810c4 in Konsole::ScreenWindow::notifyOutputChanged() ../src/ScreenWindow.cpp:331 #9 0x55ddeb929ea5 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (Konsole::ScreenWindow::*)()>::call(void (Konsole::ScreenWindow::*)(), Konsole::ScreenWindow*, void**) (/home/sandsmark/src/konsole/build/bin/konsole+0x2e5ea5) #10 0x55ddeb92950d in void QtPrivate::FunctionPointer<void (Konsole::ScreenWindow::*)()>::call<QtPrivate::List<>, void>(void (Konsole::ScreenWindow::*)(), Konsole::ScreenWindow*, void**) (/home/sandsmark/src/konsole/build/bin/konsole+0x2e550d) #11 0x55ddeb928661 in QtPrivate::QSlotObject<void (Konsole::ScreenWindow::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (/home/sandsmark/src/konsole/build/bin/konsole+0x2e4661) #12 0x7fd3a2f9275a (/usr/lib/libQt5Core.so.5+0x2f075a) #13 0x55ddeb8eb0f8 in Konsole::Emulation::outputChanged() src/konsoleprivate_autogen/EWIEGA46WW/moc_Emulation.cpp:530 #14 0x55ddeb925141 in Konsole::Emulation::showBulk() ../src/Emulation.cpp:268 #15 0x55ddeb9298e7 in QtPrivate::FunctorCall<QtPrivate::IndexesList<>, QtPrivate::List<>, void, void (Konsole::Emulation::*)()>::call(void (Konsole::Emulation::*)(), Konsole::Emulation*, void**) (/home/sandsmark/src/konsole/build/bin/konsole+0x2e58e7) #16 0x55ddeb92942a in void QtPrivate::FunctionPointer<void (Konsole::Emulation::*)()>::call<QtPrivate::List<>, void>(void (Konsole::Emulation::*)(), Konsole::Emulation*, void**) (/home/sandsmark/src/konsole/build/bin/konsole+0x2e542a) #17 0x55ddeb927fdb in QtPrivate::QSlotObject<void (Konsole::Emulation::*)(), QtPrivate::List<>, void>::impl(int, QtPrivate::QSlotObjectBase*, QObject*, void**, bool*) (/home/sandsmark/src/konsole/build/bin/konsole+0x2e3fdb) #18 0x7fd3a2f9275a (/usr/lib/libQt5Core.so.5+0x2f075a) #19 0x7fd3a2f9672a in QTimer::timeout(QTimer::QPrivateSignal) (/usr/lib/libQt5Core.so.5+0x2f472a) #20 0x7fd3a2f8841e in QObject::event(QEvent*) (/usr/lib/libQt5Core.so.5+0x2e641e) #21 0x7fd3a3ad8d61 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/usr/lib/libQt5Widgets.so.5+0x15ad61) #22 0x7fd3a2f5b3a9 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/usr/lib/libQt5Core.so.5+0x2b93a9) #23 0x7fd3a2fb334c in QTimerInfoList::activateTimers() (/usr/lib/libQt5Core.so.5+0x31134c) #24 0x7fd3a2fb1828 in QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x30f828) #25 0x7fd39a56737e (/usr/lib/libQt5XcbQpa.so.5+0x6337e) #26 0x7fd3a2f59d1b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/usr/lib/libQt5Core.so.5+0x2b7d1b) #27 0x7fd3a2f62283 in QCoreApplication::exec() (/usr/lib/libQt5Core.so.5+0x2c0283) #28 0x55ddeb8d6d14 in main ../src/main.cpp:220 #29 0x7fd3a2786b24 in __libc_start_main (/usr/lib/libc.so.6+0x27b24) #30 0x55ddeb8d3dad in _start (/home/sandsmark/src/konsole/build/bin/konsole+0x28fdad)
git bisect says this introduced the crash: 2c1a4113e1f3b728a377f9288518fd214fc47d24
Seems like the commit broke ODR and made some global static mess, and probably what causes both this and https://bugs.kde.org/show_bug.cgi?id=439633 (which crashes without ASAN as well): ================================================================= ==454108==ERROR: AddressSanitizer: odr-violation (0x55e42e3b1bc0): [1] size=48 'staticMetaObject' src/session/konsolesession_autogen/EWIEGA46WW/moc_SessionManager.cpp:112:38 [2] size=48 'staticMetaObject' src/session/konsolesession_autogen/EWIEGA46WW/moc_SessionManager.cpp:112:38 These globals were registered at these points: [1]: #0 0x7f8a524583fa in __asan_register_globals /build/gcc/src/gcc/libsanitizer/asan/asan_globals.cpp:341 #1 0x55e42dffed3d in _sub_I_00099_1 (/home/sandsmark/src/konsole/build/bin/konsole+0x4c2d3d) #2 0x55e42e16c22c in __libc_csu_init (/home/sandsmark/src/konsole/build/bin/konsole+0x63022c) [2]: #0 0x7f8a524583fa in __asan_register_globals /build/gcc/src/gcc/libsanitizer/asan/asan_globals.cpp:341 #1 0x7f8a51c60bb1 in _sub_I_00099_1 (/home/sandsmark/src/konsole/build/bin/libkonsoleapp.so.21+0x377bb1) #2 0x7f8a52e49e2d in call_init (/lib64/ld-linux-x86-64.so.2+0xfe2d)
let us know if this is still an issue
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!