https://bugs.kde.org/show_bug.cgi?id=430328
Bug ID: 430328
Summary: Kwin crashes on startup
Product: kwin
Version: unspecified
Platform: Ubuntu Packages
OS: Linux
Status: REPORTED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: o...@geek.co.il
Target Milestone: ---
Application: kwin_x11 (5.20.80)
Qt Version: 5.15.2
Frameworks Version: 5.78.0
Operating System: Linux 5.8.0-33-generic x86_64
Windowing system: X11
Distribution: Ubuntu 20.10
-- Information about the crash:
- What I was doing when the application crashed:
When Plasma starts, Kwin immediately crashes.
Running on Neon unstable
The crash can be reproduced every time.
-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
[New LWP 731974]
[New LWP 731976]
[New LWP 732077]
[New LWP 732101]
[New LWP 732102]
[New LWP 732103]
[New LWP 732104]
[New LWP 732105]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007ff3e156b66f in __GI___poll (fds=0x7ffd19b04728, nfds=1, timeout=1000) at
../sysdeps/unix/sysv/linux/poll.c:29
[Current thread is 1 (Thread 0x7ff3db9d58c0 (LWP 731972))]
Thread 9 (Thread 0x7ff3bd60e640 (LWP 732105)):
#0 futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55ca6e430e34) at ../sysdeps/nptl/futex-internal.h:183
#1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ca6e430de0,
cond=0x55ca6e430e08) at pthread_cond_wait.c:508
#2 __pthread_cond_wait (cond=0x55ca6e430e08, mutex=0x55ca6e430de0) at
pthread_cond_wait.c:638
#3 0x00007ff3e1928d1b in QWaitConditionPrivate::wait (deadline=...,
this=0x55ca6e430de0) at thread/qwaitcondition_unix.cpp:146
#4 QWaitCondition::wait (this=this@entry=0x55ca6deb7518,
mutex=mutex@entry=0x55ca6deb7510, deadline=...) at
thread/qwaitcondition_unix.cpp:225
#5 0x00007ff3e0755814 in QSGRenderThreadEventQueue::takeEvent (wait=true,
this=0x55ca6deb7508) at
/usr/include/x86_64-linux-gnu/qt5/QtCore/qdeadlinetimer.h:68
#6 QSGRenderThread::processEventsAndWaitForMore
(this=this@entry=0x55ca6deb7470) at scenegraph/qsgthreadedrenderloop.cpp:936
#7 0x00007ff3e0755c89 in QSGRenderThread::run (this=0x55ca6deb7470) at
scenegraph/qsgthreadedrenderloop.cpp:1053
#8 0x00007ff3e1922bac in QThreadPrivate::start (arg=0x55ca6deb7470) at
thread/qthread_unix.cpp:329
#9 0x00007ff3e0d25590 in start_thread (arg=0x7ff3bd60e640) at
pthread_create.c:463
#10 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 8 (Thread 0x7ff3be85a640 (LWP 732104)):
#0 futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55ca6d86bb08) at ../sysdeps/nptl/futex-internal.h:183
#1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ca6d86bab8,
cond=0x55ca6d86bae0) at pthread_cond_wait.c:508
#2 __pthread_cond_wait (cond=0x55ca6d86bae0, mutex=0x55ca6d86bab8) at
pthread_cond_wait.c:638
#3 0x00007ff3c94f361b in cnd_wait (mtx=0x55ca6d86bab8, cond=0x55ca6d86bae0) at
../include/c11/threads_posix.h:155
#4 util_queue_thread_func (input=input@entry=0x55ca6db38ef0) at
../src/util/u_queue.c:289
#5 0x00007ff3c94f30db in impl_thrd_routine (p=<optimized out>) at
../include/c11/threads_posix.h:87
#6 0x00007ff3e0d25590 in start_thread (arg=0x7ff3be85a640) at
pthread_create.c:463
#7 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 7 (Thread 0x7ff3b7fff640 (LWP 732103)):
#0 futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55ca6d86bb08) at ../sysdeps/nptl/futex-internal.h:183
#1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ca6d86bab8,
cond=0x55ca6d86bae0) at pthread_cond_wait.c:508
#2 __pthread_cond_wait (cond=0x55ca6d86bae0, mutex=0x55ca6d86bab8) at
pthread_cond_wait.c:638
#3 0x00007ff3c94f361b in cnd_wait (mtx=0x55ca6d86bab8, cond=0x55ca6d86bae0) at
../include/c11/threads_posix.h:155
#4 util_queue_thread_func (input=input@entry=0x55ca6d7fac90) at
../src/util/u_queue.c:289
#5 0x00007ff3c94f30db in impl_thrd_routine (p=<optimized out>) at
../include/c11/threads_posix.h:87
#6 0x00007ff3e0d25590 in start_thread (arg=0x7ff3b7fff640) at
pthread_create.c:463
#7 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 6 (Thread 0x7ff3bf05b640 (LWP 732102)):
#0 futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55ca6d86bb08) at ../sysdeps/nptl/futex-internal.h:183
#1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ca6d86bab8,
cond=0x55ca6d86bae0) at pthread_cond_wait.c:508
#2 __pthread_cond_wait (cond=0x55ca6d86bae0, mutex=0x55ca6d86bab8) at
pthread_cond_wait.c:638
#3 0x00007ff3c94f361b in cnd_wait (mtx=0x55ca6d86bab8, cond=0x55ca6d86bae0) at
../include/c11/threads_posix.h:155
#4 util_queue_thread_func (input=input@entry=0x55ca6d73c2e0) at
../src/util/u_queue.c:289
#5 0x00007ff3c94f30db in impl_thrd_routine (p=<optimized out>) at
../include/c11/threads_posix.h:87
#6 0x00007ff3e0d25590 in start_thread (arg=0x7ff3bf05b640) at
pthread_create.c:463
#7 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 5 (Thread 0x7ff3c8d89640 (LWP 732101)):
#0 futex_wait_cancelable (private=<optimized out>, expected=0,
futex_word=0x55ca6d86bb08) at ../sysdeps/nptl/futex-internal.h:183
#1 __pthread_cond_wait_common (abstime=0x0, clockid=0, mutex=0x55ca6d86bab8,
cond=0x55ca6d86bae0) at pthread_cond_wait.c:508
#2 __pthread_cond_wait (cond=0x55ca6d86bae0, mutex=0x55ca6d86bab8) at
pthread_cond_wait.c:638
#3 0x00007ff3c94f361b in cnd_wait (mtx=0x55ca6d86bab8, cond=0x55ca6d86bae0) at
../include/c11/threads_posix.h:155
#4 util_queue_thread_func (input=input@entry=0x55ca6d77cc90) at
../src/util/u_queue.c:289
#5 0x00007ff3c94f30db in impl_thrd_routine (p=<optimized out>) at
../include/c11/threads_posix.h:87
#6 0x00007ff3e0d25590 in start_thread (arg=0x7ff3c8d89640) at
pthread_create.c:463
#7 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 4 (Thread 0x7ff3cbfff640 (LWP 732077)):
#0 0x00007ff3e156b76e in __ppoll (fds=fds@entry=0x7ff3c4000d78,
nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:44
#1 0x00007ff3e1b5eeb9 in ppoll (__ss=<optimized out>, __timeout=<optimized
out>, __nfds=<optimized out>, __fds=<optimized out>) at
/usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2 qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7ff3c4000d78) at
kernel/qcore_unix.cpp:132
#3 qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7ff3c4000d78) at
kernel/qcore_unix.cpp:129
#4 qt_safe_poll (fds=0x7ff3c4000d78, nfds=1, timeout_ts=timeout_ts@entry=0x0)
at kernel/qcore_unix.cpp:155
#5 0x00007ff3e1b60563 in QEventDispatcherUNIX::processEvents (this=<optimized
out>, flags=...) at
../../include/QtCore/../../src/corelib/tools/qarraydata.h:211
#6 0x00007ff3e1b071ab in QEventLoop::exec (this=this@entry=0x7ff3cbffec20,
flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#7 0x00007ff3e1921a12 in QThread::exec (this=this@entry=0x55ca6d778f40) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#8 0x00007ff3e03dafa9 in QQmlThreadPrivate::run (this=0x55ca6d778f40) at
qml/ftw/qqmlthread.cpp:155
#9 0x00007ff3e1922bac in QThreadPrivate::start (arg=0x55ca6d778f40) at
thread/qthread_unix.cpp:329
#10 0x00007ff3e0d25590 in start_thread (arg=0x7ff3cbfff640) at
pthread_create.c:463
#11 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 3 (Thread 0x7ff3da338640 (LWP 731976)):
#0 0x00007ff3e156b76e in __ppoll (fds=fds@entry=0x7ff3cc00aff8,
nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:44
#1 0x00007ff3e1b5eeb9 in ppoll (__ss=<optimized out>, __timeout=<optimized
out>, __nfds=<optimized out>, __fds=<optimized out>) at
/usr/include/x86_64-linux-gnu/bits/poll2.h:77
#2 qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7ff3cc00aff8) at
kernel/qcore_unix.cpp:132
#3 qt_ppoll (timeout_ts=0x0, nfds=1, fds=0x7ff3cc00aff8) at
kernel/qcore_unix.cpp:129
#4 qt_safe_poll (fds=0x7ff3cc00aff8, nfds=1, timeout_ts=timeout_ts@entry=0x0)
at kernel/qcore_unix.cpp:155
#5 0x00007ff3e1b60563 in QEventDispatcherUNIX::processEvents (this=<optimized
out>, flags=...) at
../../include/QtCore/../../src/corelib/tools/qarraydata.h:211
#6 0x00007ff3e1b071ab in QEventLoop::exec (this=this@entry=0x7ff3da337c10,
flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#7 0x00007ff3e1921a12 in QThread::exec (this=this@entry=0x7ff3e2cd0d80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#8 0x00007ff3e2c4cf4b in QDBusConnectionManager::run (this=0x7ff3e2cd0d80
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:179
#9 0x00007ff3e1922bac in QThreadPrivate::start (arg=0x7ff3e2cd0d80 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:329
#10 0x00007ff3e0d25590 in start_thread (arg=0x7ff3da338640) at
pthread_create.c:463
#11 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 2 (Thread 0x7ff3db261640 (LWP 731974)):
#0 0x00007ff3e156b66f in __GI___poll (fds=fds@entry=0x7ff3db260b48,
nfds=nfds@entry=1, timeout=timeout@entry=-1) at
../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007ff3e1834c1a in poll (__timeout=-1, __nfds=1, __fds=0x7ff3db260b48)
at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2 _xcb_conn_wait (c=c@entry=0x55ca6d4be990, cond=cond@entry=0x55ca6d4be9d0,
vector=vector@entry=0x0, count=count@entry=0x0) at ../../src/xcb_conn.c:480
#3 0x00007ff3e183690a in xcb_wait_for_event (c=c@entry=0x55ca6d4be990) at
../../src/xcb_in.c:697
#4 0x00007ff3db328d58 in QXcbEventQueue::run (this=0x55ca6d4b4e70) at
qxcbeventqueue.cpp:228
#5 0x00007ff3e1922bac in QThreadPrivate::start (arg=0x55ca6d4b4e70) at
thread/qthread_unix.cpp:329
#6 0x00007ff3e0d25590 in start_thread (arg=0x7ff3db261640) at
pthread_create.c:463
#7 0x00007ff3e1577223 in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 1 (Thread 0x7ff3db9d58c0 (LWP 731972)):
[KCrash Handler]
#4 0x00007ff3e2f49cb5 in KWin::KeyboardLayout::checkLayoutChange (this=0x0,
previousLayout=previousLayout@entry=0) at ./keyboard_layout.cpp:212
#5 0x00007ff3e2f490da in KWin::KeyboardInputRedirection::processKey
(this=0x55ca6d641c80, key=32,
state=state@entry=KWin::InputRedirection::KeyboardKeyPressed, time=69882383,
device=device@entry=0x0) at ./keyboard_input.cpp:206
#6 0x00007ff3e2f32b80 in KWin::InputRedirection::processKeyboardKey
(this=<optimized out>, key=<optimized out>,
state=state@entry=KWin::InputRedirection::KeyboardKeyPressed, time=<optimized
out>) at ./input.cpp:2380
#7 0x00007ff3e2f7dcbf in KWin::Platform::keyboardKeyPressed (this=<optimized
out>, key=<optimized out>, time=<optimized out>) at ./input.h:510
#8 0x00007ff3d9b0f954 in KWin::XInputEventFilter::event (this=0x55ca6db5b120,
event=0x7ff3d400a9a0) at ./main.h:182
#9 0x00007ff3e2f23de1 in KWin::Workspace::workspaceEvent (this=0x55ca6d62ffe0,
e=0x7ff3d400a9a0) at ./events.cpp:299
#10 0x00007ff3e1b05b3f in QAbstractEventDispatcher::filterNativeEvent
(this=<optimized out>, eventType=..., message=message@entry=0x7ff3d400a9a0,
result=result@entry=0x7ffd19b052d8) at kernel/qabstracteventdispatcher.cpp:495
#11 0x00007ff3db2ff945 in QXcbConnection::handleXcbEvent
(this=this@entry=0x55ca6d4bd370, event=event@entry=0x7ff3d400a9a0) at
qxcbnativeinterface.h:101
#12 0x00007ff3db300696 in QXcbConnection::processXcbEvents
(this=0x55ca6d4bd370, flags=...) at qxcbconnection.cpp:1003
#13 0x00007ff3db32a140 in QXcbUnixEventDispatcher::processEvents
(this=0x55ca6d5cad10, flags=...) at qxcbeventdispatcher.cpp:61
#14 0x00007ff3e1b071ab in QEventLoop::exec (this=this@entry=0x7ffd19b05420,
flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:141
#15 0x00007ff3e1b0f354 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:121
#16 0x000055ca6b79ea4d in main (argc=<optimized out>, argv=0x7ffd19b056a8) at
./main_x11.cpp:486
[Inferior 1 (process 731972) detached]
Possible duplicates by query: bug 404710, bug 400678.
Reported using DrKonqi
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