https://bugs.kde.org/show_bug.cgi?id=379421
Bug ID: 379421
Summary: kwin crashes after "unable to claim manager selection,
another wm running"
Product: kwin
Version: 5.9.5
Platform: Fedora RPMs
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: platform-x11-standalone
Assignee: kwin-bugs-n...@kde.org
Reporter: loic.yh...@gmail.com
Target Milestone: ---
kwin-5.9.5-2.fc25.x86_64
kf5-kwindowsystem-5.33.0-1.fc25.x86_64
kf5-plasma-5.33.0-2.fc25.x86_64
qt5-qtbase-5.7.1-14.fc25.x86_64
On each startup kwin seems to be launched twice (no idea why) :
- /usr/bin/kwin (no argument)
- /usr/bin/kwin -session
1011210910f9e000149312857200000013200121_1493665183_9480
The second one prints :
kwin: unable to claim manager selection, another wm running? (try using
--replace)
Application::crashHandler() called with signal 11; recent crashes: 1
KCrash: Application 'kwin_x11' crashing...
It seems both threads crashed when trying to use code from an unloaded library,
triggered the KCrash::defaultCrashHandler, then thread 1 (second to crash ?)
crashed again in QGuiApplication::platformNativeInterface.
#0 0x00007f33c78c2b22 in QGuiApplication::platformNativeInterface() () at
kernel/qguiapplication.cpp:1588
#1 0x00007f33cfc12f2e in QX11Info::display() () at /lib64/libQt5X11Extras.so.5
#2 0x00007f33c87c6392 in KCrash::defaultCrashHandler(int) (sig=11) at
/usr/src/debug/kcrash-5.33.0/src/kcrash.cpp:455
#3 0x00007f33c6715990 in <signal handler called> () at /lib64/libc.so.6
#4 0x00007f33b7cbdd69 in ()
#5 0x00007f33b6de2d10 in ()
#6 0x000055e9d10e0ab0 in ()
#7 0x00007f33b6de2d50 in ()
#8 0x000055e9d10e0d61 in ()
#9 0x0000000000000001 in ()
#10 0x00007f33c73f49ca in QThreadPrivate::start(void*) (arg=0x55e9d10e0ab0) at
thread/qthread_unix.cpp:368
=> 0x00007f33b7cbdd69 seems to be an unloaded address.
#0 0x00007f33c67ac81d in nanosleep () at ../sysdeps/unix/syscall-template.S:84
#1 0x00007f33c67ac76a in __sleep (seconds=0, seconds@entry=1) at
../sysdeps/posix/sleep.c:55
#2 0x00007f33cf9dac3b in KWin::ApplicationX11::crashHandler(int)
(signal=<optimized out>) at /usr/src/debug/kwin-5.9.5/main_x11.cpp:325
#3 0x00007f33c87c5ee0 in KCrash::defaultCrashHandler(int) (sig=11) at
/usr/src/debug/kcrash-5.33.0/src/kcrash.cpp:394
#4 0x00007f33c6715990 in <signal handler called> () at /lib64/libc.so.6
#5 0x00007f33c75943a2 in
QCoreApplicationPrivate::sendThroughApplicationEventFilters(QObject*, QEvent*)
(this=this@entry=0x55e9d10cd050, receiver=receiver@entry=0x7fff104480a0,
event=event@entry=0x7fff104474c0)
at kernel/qcoreapplication.cpp:1081
#6 0x00007f33c7dd4f08 in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=0x55e9d10cd050, receiver=0x7fff104480a0, e=0x7fff104474c0) at
kernel/qapplication.cpp:3774
#7 0x00007f33c7ddc671 in QApplication::notify(QObject*, QEvent*)
(this=0x7fff104480a0, receiver=0x7fff104480a0, e=0x7fff104474c0) at
kernel/qapplication.cpp:3556
#8 0x00007f33c75946fa in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x7fff104480a0, event=event@entry=0x7fff104474c0) at
kernel/qcoreapplication.cpp:988
#9 0x00007f33c75c2b8d in QCoreApplication::sendEvent(QObject*, QEvent*)
(event=0x7fff104474c0, receiver=<optimized out>) at
kernel/qcoreapplication.h:231
#10 0x00007f33c75c2b8d in QObjectPrivate::setParent_helper(QObject*)
(this=this@entry=0x55e9d1139c70, o=o@entry=0x0) at kernel/qobject.cpp:1996
#11 0x00007f33c75c3303 in QObject::~QObject() (this=<optimized out>,
__in_chrg=<optimized out>) at kernel/qobject.cpp:1048
#12 0x00007f33b4a60b19 in KWin::X11StandalonePlatform::~X11StandalonePlatform()
(this=0x55e9d1137890, __in_chrg=<optimized out>) at
/usr/src/debug/kwin-5.9.5/plugins/platforms/x11/standalone/x11_platform.h:33
#13 0x00007f33c758c663 in QLibraryPrivate::unload(QLibraryPrivate::UnloadFlag)
(this=this@entry=0x55e9d11392c0, flag=flag@entry=QLibraryPrivate::NoUnloadSys)
at plugin/qlibrary.cpp:562
#14 0x00007f33c758ccb6 in QLibraryStore::cleanup() () at
plugin/qlibrary.cpp:403
#15 0x00007f33c758ccb6 in qlibraryCleanup () at plugin/qlibrary.cpp:427
#16 0x00007f33c758ccb6 in (anonymous
namespace)::qlibraryCleanup_dtor_class_::~qlibraryCleanup_dtor_class_()
(this=<optimized out>, __in_chrg=<optimized out>) at plugin/qlibrary.cpp:429
#17 0x00007f33c671a78a in __cxa_finalize (d=0x7f33c77c6ec0) at
cxa_finalize.c:56
#18 0x00007f33c73ccdb3 in __do_global_dtors_aux () at /lib64/libQt5Core.so.5
#19 0x00007fff10447d60 in ()
#20 0x00007f33cfbf318a in _dl_fini () at dl-fini.c:235
=> when /usr/lib64/qt5/plugins/org.kde.kwin.platforms/KWinX11Platform.so is
unloaded, there is an application event filter which has its vtable in an
unloaded library.
I'm able to reproduce the same kind of crashes by launching "kwin" (without
--replace) when the session is launched.
In this case I get a mix of both callstacks : KWinX11Platform.so unload which
calls KCrash::defaultCrashHandler, which crashes directly in
QX11Info::display/QGuiApplication::platformNativeInterface.
Btw, in this case the crash handler runs "kwin --crashes=1" which replaces the
current kwin, even if the original command line wasn't supposed to do this !
--
You are receiving this mail because:
You are watching all bug changes.
