https://bugs.kde.org/show_bug.cgi?id=360323
Bug ID: 360323
Summary: Kwin crash on every reboot/relogin
Product: kwin
Version: 5.5.4
Platform: Ubuntu Packages
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: davidsbo...@gmail.com
Application: kwin_x11 (5.5.4)
Qt Version: 5.5.1
Operating System: Linux 4.2.0-30-generic x86_64
Distribution: Ubuntu 15.10
-- Information about the crash:
- What I was doing when the application crashed:
Rebooting the labtop or Logout then Login
- Unusual behavior I noticed:
There's a small black square stuck in the top left corner unable to be moved
and always on top. When I ctrl-alt-esc kill it, a xembedsniproxy process
vanishes
- Custom settings of the application:
This is an upgrade from previous versions of Kubuntu, and is using the Backport
PPA
The crash can be reproduced every time.
-- Backtrace:
Application: KWin (kwin_x11), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f44e5a7c880 (LWP 4752))]
Thread 4 (Thread 0x7f44d6e6c700 (LWP 4764)):
#0 0x00007f44fdbea6f3 in select () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f44fc1ccb7f in qt_safe_select(int, fd_set*, fd_set*, fd_set*,
timespec const*) (nfds=15, fdread=fdread@entry=0x7f44c8000a98,
fdwrite=fdwrite@entry=0x7f44c8000d28, fdexcept=fdexcept@entry=0x7f44c8000fb8,
orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2 0x00007f44fc1ce67e in
QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>,
timespec*) (timeout=0x0, exceptfds=0x7f44c8000fb8, writefds=0x7f44c8000d28,
readfds=0x7f44c8000a98, nfds=<optimized out>, this=0x7f44c80008e0) at
kernel/qeventdispatcher_unix.cpp:320
#3 0x00007f44fc1ce67e in
QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>,
timespec*) (this=this@entry=0x7f44c8000900, flags=..., flags@entry=...,
timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4 0x00007f44fc1cebae in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f44c80008e0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5 0x00007f44fc17850a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f44d6e6bd20, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#6 0x00007f44fbf94ac4 in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:503
#7 0x00007f44f6ccbc35 in () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8 0x00007f44fbf99a6e in QThreadPrivate::start(void*) (arg=0x1324c50) at
thread/qthread_unix.cpp:331
#9 0x00007f44fd1f26aa in start_thread (arg=0x7f44d6e6c700) at
pthread_create.c:333
#10 0x00007f44fdbf3e9d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 3 (Thread 0x7f44d5d82700 (LWP 4768)):
#0 0x00007f44fd1f7da0 in pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007f44fb122194 in () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#2 0x00007f44fb1221d9 in () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#3 0x00007f44fd1f26aa in start_thread (arg=0x7f44d5d82700) at
pthread_create.c:333
#4 0x00007f44fdbf3e9d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 2 (Thread 0x7f44d7bdf700 (LWP 5143)):
#0 0x00007f44fdbea6f3 in select () at ../sysdeps/unix/syscall-template.S:81
#1 0x00007f44fc1ccb7f in qt_safe_select(int, fd_set*, fd_set*, fd_set*,
timespec const*) (nfds=14, fdread=fdread@entry=0x7f44d000b9c8,
fdwrite=fdwrite@entry=0x7f44d000bc58, fdexcept=fdexcept@entry=0x7f44d000bee8,
orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:75
#2 0x00007f44fc1ce67e in
QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>,
timespec*) (timeout=0x0, exceptfds=0x7f44d000bee8, writefds=0x7f44d000bc58,
readfds=0x7f44d000b9c8, nfds=<optimized out>, this=0x7f44d00faa80) at
kernel/qeventdispatcher_unix.cpp:320
#3 0x00007f44fc1ce67e in
QEventDispatcherUNIXPrivate::doSelect(QFlags<QEventLoop::ProcessEventsFlag>,
timespec*) (this=this@entry=0x7f44d000b830, flags=..., flags@entry=...,
timeout=timeout@entry=0x0) at kernel/qeventdispatcher_unix.cpp:196
#4 0x00007f44fc1cebae in
QEventDispatcherUNIX::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7f44d00faa80, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5 0x00007f44fc17850a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7f44d7bded20, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:204
#6 0x00007f44fbf94ac4 in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:503
#7 0x00007f44f6ccbc35 in () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8 0x00007f44fbf99a6e in QThreadPrivate::start(void*) (arg=0x189e840) at
thread/qthread_unix.cpp:331
#9 0x00007f44fd1f26aa in start_thread (arg=0x7f44d7bdf700) at
pthread_create.c:333
#10 0x00007f44fdbf3e9d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Thread 1 (Thread 0x7f44e5a7c880 (LWP 4752)):
[KCrash Handler]
#6 0x00007f44f6be4d35 in () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7 0x00007f44f6b8bbd5 in QV4::ExecutionEngine::newStringObject(QV4::Value
const&) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8 0x00007f44f6c25092 in QV4::Runtime::getProperty(QV4::ExecutionEngine*,
QV4::Value const&, int) () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9 0x00007f44d4235c79 in ()
#10 0x00007f44f73f97a2 in QQuickItem::staticMetaObject () at
/usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f44d47c4260 in ()
#12 0x00000000018741a0 in ()
#13 0x00007f44d47c4258 in ()
#14 0x0000000001c71a80 in ()
#15 0x00007f44fc4e0119 in (anonymous namespace)::construct(QVariant::Private*,
void const*) (this=<synthetic pointer>, tc=<synthetic pointer>) at
../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/kernel/qvariant_p.h:339
#16 0x00007f44fc4e0119 in (anonymous namespace)::construct(QVariant::Private*,
void const*) (this=<optimized out>, tc=<synthetic pointer>) at
../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/kernel/qvariant_p.h:362
#17 0x00007f44fc4e0119 in (anonymous namespace)::construct(QVariant::Private*,
void const*) (this=<synthetic pointer>) at
../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/kernel/qvariant_p.h:383
#18 0x00007f44fc4e0119 in (anonymous namespace)::construct(QVariant::Private*,
void const*) (data=0x0, type=<optimized out>, logic=<synthetic pointer>) at
../../include/QtCore/5.5.1/QtCore/private/../../../../../src/corelib/kernel/qmetatypeswitcher_p.h:68
#19 0x00007f44fc4e0119 in (anonymous namespace)::construct(QVariant::Private*,
void const*) (x=0x17f2d00, copy=0x7ffd044d5810) at kernel/qguivariant.cpp:101
#20 0x0000000001c71a80 in ()
#21 0x0000000001c71a80 in ()
#22 0x00000000017504d8 in ()
#23 0x0000000000000003 in ()
#24 0x00000000020c4470 in ()
#25 0x00007f44f6e0de20 in () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#26 0x00007f44d47c41f8 in ()
#27 0x0000000001c71a80 in ()
#28 0x00007ffd044d5dd0 in ()
#29 0x00007f44d47a35e0 in ()
#30 0x0000000000000000 in ()
Reported using DrKonqi
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