https://bugs.kde.org/show_bug.cgi?id=373912
Bug ID: 373912
Summary: kwin crashes on compositor change
Product: kwin
Version: 5.7.5
Platform: Ubuntu Packages
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: n...@tubemail.de
Target Milestone: ---
Application: kwin_x11 (5.7.5)
Qt Version: 5.6.1
Frameworks Version: 5.28.0
Operating System: Linux 4.8.0-30-generic x86_64
Distribution: Ubuntu 16.10
-- Information about the crash:
After the update to the latest KDE packages from kubuntu-ppa/backports/yakkety,
KWin crashes whenever I switch compositor to OpenGL 2.0, 3.1 or XRender in
system settings.
In all cases, composition gets deactivated right away, according to "qdbus
org.kde.KWin /Compositor org.kde.kwin.Compositing.active" returning "false".
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 0x7fd9106d1940 (LWP 1652))]
Thread 5 (Thread 0x7fd873fff700 (LWP 2312)):
#0 0x00007fd927807ea3 in select () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007fd925688caf in qt_safe_select (nfds=14,
fdread=fdread@entry=0x7fd86c0517c8, fdwrite=fdwrite@entry=0x7fd86c051a58,
fdexcept=fdexcept@entry=0x7fd86c051ce8, orig_timeout=orig_timeout@entry=0x0) at
kernel/qcore_unix.cpp:75
#2 0x00007fd92568a754 in QEventDispatcherUNIX::select (timeout=0x0,
exceptfds=0x7fd86c051ce8, writefds=0x7fd86c051a58, readfds=0x7fd86c0517c8,
nfds=<optimized out>, this=0x7fd86c05d7e0) at
kernel/qeventdispatcher_unix.cpp:320
#3 QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fd86c051630,
flags=..., flags@entry=..., timeout=timeout@entry=0x0) at
kernel/qeventdispatcher_unix.cpp:196
#4 0x00007fd92568ac6a in QEventDispatcherUNIX::processEvents
(this=0x7fd86c05d7e0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5 0x00007fd9256350fa in QEventLoop::exec (this=this@entry=0x7fd873ffec60,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6 0x00007fd92545ad43 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:500
#7 0x00007fd91fef6c65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8 0x00007fd92545fc68 in QThreadPrivate::start (arg=0x55cd06b46b80) at
thread/qthread_unix.cpp:341
#9 0x00007fd920d976ca in start_thread (arg=0x7fd873fff700) at
pthread_create.c:333
#10 0x00007fd9278120af in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105
Thread 4 (Thread 0x7fd90625e700 (LWP 1749)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at
../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007fd9247f2574 in QTWTF::TCMalloc_PageHeap::scavengerThread
(this=0x7fd9248d9f00 <QTWTF::pageheap_memory>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2 0x00007fd9247f25b9 in QTWTF::TCMalloc_PageHeap::runScavengerThread
(context=<optimized out>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3 0x00007fd920d976ca in start_thread (arg=0x7fd90625e700) at
pthread_create.c:333
#4 0x00007fd9278120af in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105
Thread 3 (Thread 0x7fd9072ef700 (LWP 1748)):
#0 0x00007fd927807ea3 in select () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007fd925688caf in qt_safe_select (nfds=15,
fdread=fdread@entry=0x7fd8f4000a78, fdwrite=fdwrite@entry=0x7fd8f4000d08,
fdexcept=fdexcept@entry=0x7fd8f4000f98, orig_timeout=orig_timeout@entry=0x0) at
kernel/qcore_unix.cpp:75
#2 0x00007fd92568a754 in QEventDispatcherUNIX::select (timeout=0x0,
exceptfds=0x7fd8f4000f98, writefds=0x7fd8f4000d08, readfds=0x7fd8f4000a78,
nfds=<optimized out>, this=0x7fd8f40008c0) at
kernel/qeventdispatcher_unix.cpp:320
#3 QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7fd8f40008e0,
flags=..., flags@entry=..., timeout=timeout@entry=0x0) at
kernel/qeventdispatcher_unix.cpp:196
#4 0x00007fd92568ac6a in QEventDispatcherUNIX::processEvents
(this=0x7fd8f40008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:607
#5 0x00007fd9256350fa in QEventLoop::exec (this=this@entry=0x7fd9072eec60,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#6 0x00007fd92545ad43 in QThread::exec (this=<optimized out>) at
thread/qthread.cpp:500
#7 0x00007fd91fef6c65 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8 0x00007fd92545fc68 in QThreadPrivate::start (arg=0x55cd06642e80) at
thread/qthread_unix.cpp:341
#9 0x00007fd920d976ca in start_thread (arg=0x7fd9072ef700) at
pthread_create.c:333
#10 0x00007fd9278120af in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105
Thread 2 (Thread 0x7fd9106cd700 (LWP 1670)):
#0 0x00007fd9278060bd in poll () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007fd91e2f99d6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007fd91e2f9aec in g_main_context_iteration () from
/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x00007fd92568d4ab in QEventDispatcherGlib::processEvents
(this=0x7fd9080008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:419
#4 0x00007fd9256350fa in QEventLoop::exec (this=this@entry=0x7fd9106ccc50,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5 0x00007fd92545ad43 in QThread::exec (this=this@entry=0x7fd927e92d60
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:500
#6 0x00007fd927e1e575 in QDBusConnectionManager::run (this=0x7fd927e92d60
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:171
#7 0x00007fd92545fc68 in QThreadPrivate::start (arg=0x7fd927e92d60 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:341
#8 0x00007fd920d976ca in start_thread (arg=0x7fd9106cd700) at
pthread_create.c:333
#9 0x00007fd9278120af in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:105
Thread 1 (Thread 0x7fd9106d1940 (LWP 1652)):
[KCrash Handler]
#6 0x0000000000000000 in ?? ()
#7 0x00007fd9273dec9e in KWin::BuiltInEffectLoader::loadEffect
(this=this@entry=0x55cd075cf280, name=..., effect=effect@entry=<incomplete
type>, flags=...) at ./effectloader.cpp:146
#8 0x00007fd9273df1ef in KWin::BuiltInEffectLoader::loadEffect
(this=0x55cd075cf280, effect=effect@entry=<incomplete type>,
flags=flags@entry=...) at ./effectloader.cpp:125
#9 0x00007fd9273e491f in KWin::EffectLoadQueue<KWin::BuiltInEffectLoader,
KWin::BuiltInEffect>::dequeue (this=0x55cd075ce180) at ./effectloader.h:257
#10 0x00007fd925665699 in QObject::event (this=0x55cd075ce180, e=<optimized
out>) at kernel/qobject.cpp:1256
#11 0x00007fd925f728ac in QApplicationPrivate::notify_helper (this=<optimized
out>, receiver=0x55cd075ce180, e=0x55cd075c49a0) at
kernel/qapplication.cpp:3804
#12 0x00007fd925f77d4f in QApplication::notify (this=0x7ffd2a5af690,
receiver=0x55cd075ce180, e=0x55cd075c49a0) at kernel/qapplication.cpp:3561
#13 0x00007fd9256373b0 in QCoreApplication::notifyInternal2
(receiver=0x55cd075ce180, event=event@entry=0x55cd075c49a0) at
kernel/qcoreapplication.cpp:1015
#14 0x00007fd92563933c in QCoreApplication::sendEvent (event=0x55cd075c49a0,
receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:225
#15 QCoreApplicationPrivate::sendPostedEvents (receiver=receiver@entry=0x0,
event_type=event_type@entry=0, data=0x55cd06419620) at
kernel/qcoreapplication.cpp:1650
#16 0x00007fd92568ab52 in QEventDispatcherUNIX::processEvents
(this=0x55cd0645d150, flags=...) at kernel/qeventdispatcher_unix.cpp:579
#17 0x00007fd90f9ed94d in QUnixEventDispatcherQPA::processEvents
(this=<optimized out>, flags=...) at
eventdispatchers/qunixeventdispatcher.cpp:62
#18 0x00007fd9256350fa in QEventLoop::exec (this=this@entry=0x7ffd2a5af580,
flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#19 0x00007fd92563d90c in QCoreApplication::exec () at
kernel/qcoreapplication.cpp:1285
#20 0x00007fd925981a7c in QGuiApplication::exec () at
kernel/qguiapplication.cpp:1602
#21 0x00007fd925f6f8e5 in QApplication::exec () at kernel/qapplication.cpp:2979
#22 0x00007fd927ada206 in kdemain (argc=<optimized out>, argv=0x7ffd2a5af818)
at ./main_x11.cpp:466
#23 0x00007fd92772a3f1 in __libc_start_main (main=0x55cd050047e0 <main>,
argc=1, argv=0x7ffd2a5af818, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7ffd2a5af808) at ../csu/libc-start.c:291
#24 0x000055cd0500481a in _start ()
Reported using DrKonqi
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