https://bugs.kde.org/show_bug.cgi?id=464748
Bug ID: 464748
Summary: kwin_wayland crashed when pressing alt+tab
Classification: Plasma
Product: kwin
Version: 5.26.90
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: crash
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: bugsefor...@gmx.com
Target Milestone: ---
When I pressed alt+tab, kwin_wayland crashed and all running apps were aborted.
Operating System: Arch Linux
KDE Plasma Version: 5.26.90
KDE Frameworks Version: 5.102.0
Qt Version: 5.15.8
Graphics Platform: Wayland
Thread 10 (Thread 0x7f0ebeffe6c0 (LWP 769)):
Breakpoint 1 at 0x7f0ee34afb4e: file malloc.c, line 3362.
Thread 9 (Thread 0x7f0ebf7ff6c0 (LWP 1286)):
Note: breakpoint 1 also set at pc 0x7f0ee34afb4e.
Breakpoint 2 at 0x7f0ee34afb4e: file malloc.c, line 3362.
Thread 8 (Thread 0x7f0ededff6c0 (LWP 758)):
Note: breakpoints 1 and 2 also set at pc 0x7f0ee34afb4e.
Breakpoint 3 at 0x7f0ee34afb4e: file malloc.c, line 3362.
Thread 7 (Thread 0x7f0ea71a76c0 (LWP 10210)):
Note: breakpoints 1, 2 and 3 also set at pc 0x7f0ee34afb4e.
Breakpoint 4 at 0x7f0ee34afb4e: file malloc.c, line 3362.
Thread 10 (Thread 0x7f0ebeffe6c0 (LWP 769)):
#0 0x00007f0ee351437f in __GI___poll (fds=0x7f0eac0029e0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f0ee216dbef in g_main_context_poll (priority=<optimized out>,
n_fds=1, fds=0x7f0eac0029e0, timeout=<optimized out>, context=0x7f0eac000c30)
at ../glib/glib/gmain.c:4553
#2 g_main_context_iterate.constprop.0 (context=0x7f0eac000c30, block=1,
dispatch=1, self=<optimized out>) at ../glib/glib/gmain.c:4243
#3 0x00007f0ee2115132 in g_main_context_iteration (context=0x7f0eac000c30,
may_block=1) at ../glib/glib/gmain.c:4313
#4 0x00007f0ee44d8b2c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f0eac000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5 0x00007f0ee44865ac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0ebeffdce0,
flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6 0x00007f0ee42e725f in QThread::exec() (this=this@entry=0x56368fa50240) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#7 0x00007f0ee52c00e0 in QQmlThreadPrivate::run() (this=0x56368fa50240) at
/usr/src/debug/qt5-declarative/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:155
#8 0x00007f0ee42e432a in QThreadPrivate::start(void*) (arg=0x56368fa50240) at
thread/qthread_unix.cpp:330
#9 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#10 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 9 (Thread 0x7f0ebf7ff6c0 (LWP 1286)):
#0 0x00007f0ee351437f in __GI___poll (fds=0x7f0eb4004440, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f0ee216dbef in g_main_context_poll (priority=<optimized out>,
n_fds=1, fds=0x7f0eb4004440, timeout=<optimized out>, context=0x7f0eb401d550)
at ../glib/glib/gmain.c:4553
#2 g_main_context_iterate.constprop.0 (context=0x7f0eb401d550, block=1,
dispatch=1, self=<optimized out>) at ../glib/glib/gmain.c:4243
#3 0x00007f0ee2115132 in g_main_context_iteration (context=0x7f0eb401d550,
may_block=1) at ../glib/glib/gmain.c:4313
#4 0x00007f0ee44d8b2c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f0eb4004960, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5 0x00007f0ee44865ac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0ebf7fece0,
flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6 0x00007f0ee42e725f in QThread::exec() (this=this@entry=0x563690bdd890) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#7 0x00007f0ee52c00e0 in QQmlThreadPrivate::run() (this=0x563690bdd890) at
/usr/src/debug/qt5-declarative/qtdeclarative/src/qml/qml/ftw/qqmlthread.cpp:155
#8 0x00007f0ee42e432a in QThreadPrivate::start(void*) (arg=0x563690bdd890) at
thread/qthread_unix.cpp:330
#9 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#10 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 8 (Thread 0x7f0ededff6c0 (LWP 758)):
#0 0x00007f0ee351437f in __GI___poll (fds=0x7f0ed80053e0, nfds=3, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f0ee216dbef in g_main_context_poll (priority=<optimized out>,
n_fds=3, fds=0x7f0ed80053e0, timeout=<optimized out>, context=0x7f0ed8001cf0)
at ../glib/glib/gmain.c:4553
#2 g_main_context_iterate.constprop.0 (context=0x7f0ed8001cf0, block=1,
dispatch=1, self=<optimized out>) at ../glib/glib/gmain.c:4243
#3 0x00007f0ee2115132 in g_main_context_iteration (context=0x7f0ed8001cf0,
may_block=1) at ../glib/glib/gmain.c:4313
#4 0x00007f0ee44d8b2c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f0ed8000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5 0x00007f0ee44865ac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0ededfecd0,
flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6 0x00007f0ee42e725f in QThread::exec() (this=this@entry=0x7f0ee62b9560
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#7 0x00007f0ee625dcba in QDBusConnectionManager::run() (this=0x7f0ee62b9560
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
/usr/src/debug/qt5-base/qtbase/src/dbus/qdbusconnection.cpp:179
#8 0x00007f0ee42e432a in QThreadPrivate::start(void*) (arg=0x7f0ee62b9560
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:330
#9 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#10 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 7 (Thread 0x7f0ea71a76c0 (LWP 10210)):
#0 0x00007f0ee3521356 in epoll_wait (epfd=92,
events=events@entry=0x7f0ea71a6970, maxevents=32, timeout=-1) at
../sysdeps/unix/sysv/linux/epoll_wait.c:30
#1 0x00007f0ea69848a9 in impl_pollfd_wait (object=<optimized out>,
pfd=<optimized out>, ev=0x7f0ea71a6b40, n_ev=<optimized out>,
timeout=<optimized out>) at ../pipewire/spa/plugins/support/system.c:157
#2 0x00007f0ea69759db in loop_iterate (object=0x56369140a618, timeout=-1) at
../pipewire/spa/plugins/support/loop.c:422
#3 0x00007f0ee4121df7 in do_loop (user_data=0x5636915a6fa0) at
../pipewire/src/pipewire/data-loop.c:81
#4 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#5 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 6 (Thread 0x7f0e8d7056c0 (LWP 4380)):
#0 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0,
op=393, expected=0, futex_word=0x56369129d770) at futex-internal.c:57
#1 __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56369129d770,
expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0,
private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2 0x00007f0ee349c51f in __GI___futex_abstimed_wait_cancelable64
(futex_word=futex_word@entry=0x56369129d770, expected=expected@entry=0,
clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at
futex-internal.c:139
#3 0x00007f0ee349ecd0 in __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x56369129d720, cond=0x56369129d748) at pthread_cond_wait.c:503
#4 ___pthread_cond_wait (cond=0x56369129d748, mutex=0x56369129d720) at
pthread_cond_wait.c:618
#5 0x00007f0ed650c50e in cnd_wait () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:135
#6 0x00007f0ed64bc89c in util_queue_thread_func () at
../mesa-22.3.3/src/util/u_queue.c:290
#7 0x00007f0ed650c43c in impl_thrd_routine () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:67
#8 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#9 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 5 (Thread 0x7f0ecd5fe6c0 (LWP 767)):
#0 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0,
op=393, expected=0, futex_word=0x7f0edc2b6580) at futex-internal.c:57
#1 __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f0edc2b6580,
expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0,
private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2 0x00007f0ee349c51f in __GI___futex_abstimed_wait_cancelable64
(futex_word=futex_word@entry=0x7f0edc2b6580, expected=expected@entry=0,
clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at
futex-internal.c:139
#3 0x00007f0ee349ecd0 in __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x7f0edc2b6530, cond=0x7f0edc2b6558) at pthread_cond_wait.c:503
#4 ___pthread_cond_wait (cond=0x7f0edc2b6558, mutex=0x7f0edc2b6530) at
pthread_cond_wait.c:618
#5 0x00007f0ed650c50e in cnd_wait () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:135
#6 0x00007f0ed64bc89c in util_queue_thread_func () at
../mesa-22.3.3/src/util/u_queue.c:290
#7 0x00007f0ed650c43c in impl_thrd_routine () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:67
#8 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#9 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 4 (Thread 0x7f0ecddff6c0 (LWP 766)):
#0 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0,
op=393, expected=0, futex_word=0x7f0edc380580) at futex-internal.c:57
#1 __futex_abstimed_wait_common (futex_word=futex_word@entry=0x7f0edc380580,
expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0,
private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2 0x00007f0ee349c51f in __GI___futex_abstimed_wait_cancelable64
(futex_word=futex_word@entry=0x7f0edc380580, expected=expected@entry=0,
clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at
futex-internal.c:139
#3 0x00007f0ee349ecd0 in __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x7f0edc380530, cond=0x7f0edc380558) at pthread_cond_wait.c:503
#4 ___pthread_cond_wait (cond=0x7f0edc380558, mutex=0x7f0edc380530) at
pthread_cond_wait.c:618
#5 0x00007f0ed650c50e in cnd_wait () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:135
#6 0x00007f0ed64bc89c in util_queue_thread_func () at
../mesa-22.3.3/src/util/u_queue.c:290
#7 0x00007f0ed650c43c in impl_thrd_routine () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:67
#8 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#9 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 3 (Thread 0x7f0edd3b66c0 (LWP 761)):
#0 __futex_abstimed_wait_common64 (private=0, cancel=true, abstime=0x0,
op=393, expected=0, futex_word=0x56368f6e2328) at futex-internal.c:57
#1 __futex_abstimed_wait_common (futex_word=futex_word@entry=0x56368f6e2328,
expected=expected@entry=0, clockid=clockid@entry=0, abstime=abstime@entry=0x0,
private=private@entry=0, cancel=cancel@entry=true) at futex-internal.c:87
#2 0x00007f0ee349c51f in __GI___futex_abstimed_wait_cancelable64
(futex_word=futex_word@entry=0x56368f6e2328, expected=expected@entry=0,
clockid=clockid@entry=0, abstime=abstime@entry=0x0, private=private@entry=0) at
futex-internal.c:139
#3 0x00007f0ee349ecd0 in __pthread_cond_wait_common (abstime=0x0, clockid=0,
mutex=0x56368f6e22d8, cond=0x56368f6e2300) at pthread_cond_wait.c:503
#4 ___pthread_cond_wait (cond=0x56368f6e2300, mutex=0x56368f6e22d8) at
pthread_cond_wait.c:618
#5 0x00007f0ed650c50e in cnd_wait () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:135
#6 0x00007f0ed64bc89c in util_queue_thread_func () at
../mesa-22.3.3/src/util/u_queue.c:290
#7 0x00007f0ed650c43c in impl_thrd_routine () at
../mesa-22.3.3/src/c11/impl/threads_posix.c:67
#8 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#9 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 2 (Thread 0x7f0edcbb56c0 (LWP 762)):
#0 0x00007f0ee351437f in __GI___poll (fds=0x7f0ec00029e0, nfds=2, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007f0ee216dbef in g_main_context_poll (priority=<optimized out>,
n_fds=2, fds=0x7f0ec00029e0, timeout=<optimized out>, context=0x7f0ec0000c30)
at ../glib/glib/gmain.c:4553
#2 g_main_context_iterate.constprop.0 (context=0x7f0ec0000c30, block=1,
dispatch=1, self=<optimized out>) at ../glib/glib/gmain.c:4243
#3 0x00007f0ee2115132 in g_main_context_iteration (context=0x7f0ec0000c30,
may_block=1) at ../glib/glib/gmain.c:4313
#4 0x00007f0ee44d8b2c in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f0ec0000b70, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#5 0x00007f0ee44865ac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7f0edcbb4d00,
flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#6 0x00007f0ee42e725f in QThread::exec() (this=<optimized out>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#7 0x00007f0ee42e432a in QThreadPrivate::start(void*) (arg=0x56368f6e9de8) at
thread/qthread_unix.cpp:330
#8 0x00007f0ee349f8fd in start_thread (arg=<optimized out>) at
pthread_create.c:442
#9 0x00007f0ee3521d20 in clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:81
Thread 1 (Thread 0x7f0edf0fd880 (LWP 733)):
#0 0x00007f0ee34afb4e in __GI___libc_free (mem=0x1000000000000000) at
malloc.c:3362
#1 0x00007f0ee36a56aa in operator delete(void*) (ptr=<optimized out>) at
/usr/src/debug/gcc/gcc/libstdc++-v3/libsupc++/del_op.cc:49
#2 0x00007f0ee36a56da in operator delete[](void*) (ptr=<optimized out>) at
/usr/src/debug/gcc/gcc/libstdc++-v3/libsupc++/del_opv.cc:35
#3 0x00007f0ee44afcad in QObjectPrivate::Connection::~Connection()
(this=0x5636915c4650, this=<optimized out>) at kernel/qobject.cpp:1134
#4 0x00007f0ee44afd31 in QObjectPrivate::Connection::deref()
(this=0x5636915c4650) at kernel/qobject_p.h:189
#5
QObjectPrivate::ConnectionData::deleteOrphaned(QObjectPrivate::ConnectionOrSignalVector*)
(o=0x5636915c4650) at kernel/qobject.cpp:457
#6 0x00007f0ee44b55d0 in QObjectPrivate::ConnectionData::~ConnectionData()
(this=0x5636911c6fd0, this=<optimized out>) at kernel/qobject_p.h:274
#7 QObject::~QObject() (this=<optimized out>, this=<optimized out>) at
kernel/qobject.cpp:1111
#8 0x00007f0ea94c004a in QQmlPrivate::QQmlElement<IconItem>::~QQmlElement()
(this=0x563690ef4030, this=<optimized out>) at
/usr/include/qt/QtQml/qqmlprivate.h:144
#9 QQmlPrivate::QQmlElement<IconItem>::~QQmlElement() (this=0x563690ef4030,
this=<optimized out>) at /usr/include/qt/QtQml/qqmlprivate.h:144
#10 0x00007f0ee44b189a in QObject::event(QEvent*) (this=0x563690ef4030,
e=0x5636915b8320) at kernel/qobject.cpp:1334
#11 0x00007f0ee3b78b5c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=<optimized out>, receiver=0x563690ef4030, e=0x5636915b8320) at
kernel/qapplication.cpp:3640
#12 0x00007f0ee448de08 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x563690ef4030, event=0x5636915b8320) at
kernel/qcoreapplication.cpp:1064
#13 0x00007f0ee448e913 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) (receiver=0x0, event_type=0, data=0x56368f5dd220) at
kernel/qcoreapplication.cpp:1821
#14 0x00007f0ee44d8437 in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x56368f5e4210, flags=...) at kernel/qeventdispatcher_unix.cpp:468
#15 0x000056368ef60312 in
QUnixEventDispatcherQPA::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
()
#16 0x00007f0ee44865ac in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fff2c69c250,
flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69
#17 0x00007f0ee44910d9 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#18 0x00007f0ee4939fe2 in QGuiApplication::exec() () at
kernel/qguiapplication.cpp:1870
#19 0x00007f0ee3b76f2a in QApplication::exec() () at
kernel/qapplication.cpp:2832
#20 0x000056368ee7d242 in main(int, char**) (argc=<optimized out>,
argv=<optimized out>) at
/usr/src/debug/kwin/kwin-5.26.90/src/main_wayland.cpp:628
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