https://bugs.kde.org/show_bug.cgi?id=409652
Matt Fagnani <matthew.fagn...@utoronto.ca> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|5.15.5 |5.16.2
--- Comment #1 from Matt Fagnani <matthew.fagn...@utoronto.ca> ---
Qt Version: 5.12.4
Frameworks Version: 5.59.0
Operating System: Linux 5.3.0-0.rc1.git1.1.fc31.x86_64 x86_64
Distribution (Platform): Fedora RPMs
-- Information about the crash:
- What I was doing when the application crashed:
I booted into the Fedora Rawhide/31 KDE Plasma spin image
Fedora-KDE-Live-x86_64-Rawhide-20190724.n.0.iso at
https://koji.fedoraproject.org/koji/buildinfo?buildID=1319740
I ran sudo dnf install x*amd* kwin*way* pla*way*
kwayland-integration-5.16.2-1.fc31.x86_64
kwin-wayland-5.16.2-1.fc31.x86_64
plasma-workspace-wayland-5.16.2-2.fc31.x86_64
xorg-x11-drv-amdgpu-19.0.1-1.fc31.x86_64
xorg-x11-server-Xwayland-1.20.5-5.fc31.x86_64
I logged out of Plasma. I switched to VT2 then I ran sudo systemctl restart
sddm. Plasma on X logged in automatically but Plasma froze on the splash
screen. I ran sudo systemctl stop sddm in VT2. xembedsniproxy from
plasma-workspace-5.16.2 had a segmentation fault in FdoSelectionManager::init
at
/usr/src/debug/plasma-workspace-5.16.2-2.fc31.x86_64/xembed-sni-proxy/fdoselectionmanager.cpp:69
69 if (reply->present) {
The crash had a similar trace using coredumpctl gdb as I reported before. The
pointer reply was null so reply->present looks like a null pointer dereference.
I'm unsure if the xembedsniproxy crash happened right before or after I ran
startplasmacompositor & from VT2 based on the journal. Plasma on Wayland
started, but drkonqi showed a segmentation fault in plasmashell which I
reported in bug 410211. I installed the plasma-workspaces and qt5-qtbase
debugging rpms.
(gdb) thread apply all bt full
Thread 2 (Thread 0x7f1a4c646700 (LWP 3717)):
#0 0x00007f1a5cbed79f in poll () from /lib64/libc.so.6
No symbol table info available.
#1 0x00007f1a5b8202ee in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
No symbol table info available.
#2 0x00007f1a5b820423 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
No symbol table info available.
#3 0x00007f1a5d180bb5 in QEventDispatcherGlib::processEvents
(this=0x7f1a440018e0, flags=...) at kernel/qeventdispatcher_glib.cpp:422
d = 0x7f1a44005250
canWait = true
savedFlags = {i = 0}
result = <optimized out>
#4 0x00007f1a5d12a9db in QEventLoop::exec (this=this@entry=0x7f1a4c645d70,
flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:140
d = 0x7f1a440065f0
locker = {val = 94273122388240}
ref = <optimized out>
app = <optimized out>
#5 0x00007f1a5cf83625 in QThread::exec (this=this@entry=0x7f1a5da82060
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
../../include/QtCore/../../src/corelib/global/qflags.h:120
d = 0x55bdabf8c8a0
locker = {val = 94273122388240}
--Type <RET> for more, q to quit, c to continue without paging--c
eventLoop = {<QObject> = {_vptr.QObject = 0x7f1a5d3dba28 <vtable for
QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata =
0x7f1a5d2cb300 <qt_meta_stringdata_QObject>, data = 0x7f1a5d2cb1e0
<qt_meta_data_QObject>, static_metacall = 0x7f1a5d15dfc0
<QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x7f1a440065f0},
static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f1a5d2ce220
<qt_meta_stringdata_Qt>, data = 0x7f1a5d2cb420 <qt_meta_data_Qt>,
static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static
staticMetaObject = {d = {superdata = 0x7f1a5d3d3fe0
<QObject::staticMetaObject>, stringdata = 0x7f1a5d2c56a0
<qt_meta_stringdata_QEventLoop>, data = 0x7f1a5d2c5640
<qt_meta_data_QEventLoop>, static_metacall = 0x7f1a5d12a6f0
<QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}}
returnCode = <optimized out>
#6 0x00007f1a5d9fef4a in QDBusConnectionManager::run (this=0x7f1a5da82060
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:178
locker = <optimized out>
#7 0x00007f1a5cf84776 in QThreadPrivate::start (arg=0x7f1a5da82060 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:361
thr = 0x7f1a5da82060 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>
data = <optimized out>
__clframe = {__cancel_routine = 0x7f1a5cf83eb0
<QThreadPrivate::finish(void*)>, __cancel_arg = 0x7f1a5da82060 <(anonymous
namespace)::Q_QGS__q_manager::innerFunction()::holder>, __do_it = 1,
__cancel_type = <optimized out>}
#8 0x00007f1a5cad84e2 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#9 0x00007f1a5cbf8333 in clone () from /lib64/libc.so.6
No symbol table info available.
Thread 1 (Thread 0x7f1a5d98bc80 (LWP 3468)):
#0 FdoSelectionManager::init (this=0x7ffda0c272b0) at
/usr/src/debug/plasma-workspace-5.16.2-2.fc31.x86_64/xembed-sni-proxy/fdoselectionmanager.cpp:69
c = 0x55bdabee0c00
reply = 0x0
#1 0x00007f1a5d162576 in QtPrivate::QSlotObjectBase::call (a=0x7ffda0c26e90,
r=<optimized out>, this=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
No locals.
#2 QSingleShotTimer::timerEvent (this=0x55bdabf51350) at kernel/qtimer.cpp:318
args = {0x0}
#3 0x00007f1a5d156b75 in QObject::event (this=0x55bdabf51350, e=<optimized
out>) at kernel/qobject.cpp:1282
No locals.
#4 0x00007f1a5d12ba45 in doNotify (receiver=<optimized out>, event=<optimized
out>) at ../../include/QtCore/../../src/corelib/kernel/qobject.h:142
No locals.
#5 0x00007f1a5d12bad8 in QCoreApplication::notifyInternal2
(receiver=0x55bdabf51350, event=0x7ffda0c26fe0) at
kernel/qcoreapplication.cpp:1084
selfRequired = true
result = false
cbdata = {0x55bdabf51350, 0x7ffda0c26fe0, 0x7ffda0c26f6f}
d = <optimized out>
threadData = 0x55bdabece5a0
scopeLevelCounter = {threadData = 0x55bdabece5a0}
#6 0x00007f1a5d17fe73 in QTimerInfoList::activateTimers (this=0x55bdabf8a6d0)
at kernel/qtimerinfo_unix.cpp:643
e = {<QEvent> = {_vptr.QEvent = 0x7f1a5d3dbc90 <vtable for
QTimerEvent+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata =
0x7f1a5d2c65e0 <qt_meta_stringdata_QEvent>, data = 0x7f1a5d2c6020
<qt_meta_data_QEvent>, static_metacall = 0x0, relatedMetaObjects = 0x0,
extradata = 0x0}}, d = 0x0, t = 1, posted = 0, spont = 0, m_accept = 1,
reserved = 5503}, id = 1}
currentTimerInfo = 0x0
n_act = 0
maxCount = 0
currentTime = {tv_sec = 758, tv_nsec = 21159576}
#7 0x00007f1a5d18072c in timerSourceDispatch (source=<optimized out>) at
kernel/qeventdispatcher_glib.cpp:182
timerSource = <optimized out>
#8 0x00007f1a5b81ffed in g_main_context_dispatch () from
/lib64/libglib-2.0.so.0
No symbol table info available.
#9 0x00007f1a5b820380 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
No symbol table info available.
#10 0x00007f1a5b820423 in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
No symbol table info available.
#11 0x00007f1a5d180bb5 in QEventDispatcherGlib::processEvents
(this=0x55bdabed2610, flags=...) at kernel/qeventdispatcher_glib.cpp:422
d = 0x55bdabf8feb0
canWait = true
savedFlags = {i = 0}
result = <optimized out>
#12 0x00007f1a5d12a9db in QEventLoop::exec (this=this@entry=0x7ffda0c27220,
flags=..., flags@entry=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:140
d = 0x55bdabf8fac0
locker = {val = 94273121609392}
ref = <optimized out>
app = <optimized out>
#13 0x00007f1a5d132706 in QCoreApplication::exec () at
../../include/QtCore/../../src/corelib/global/qflags.h:120
threadData = 0x55bdabece5a0
eventLoop = {<QObject> = {_vptr.QObject = 0x7f1a5d3dba28 <vtable for
QEventLoop+16>, static staticMetaObject = {d = {superdata = 0x0, stringdata =
0x7f1a5d2cb300 <qt_meta_stringdata_QObject>, data = 0x7f1a5d2cb1e0
<qt_meta_data_QObject>, static_metacall = 0x7f1a5d15dfc0
<QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x55bdabf8fac0},
static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f1a5d2ce220
<qt_meta_stringdata_Qt>, data = 0x7f1a5d2cb420 <qt_meta_data_Qt>,
static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static
staticMetaObject = {d = {superdata = 0x7f1a5d3d3fe0
<QObject::staticMetaObject>, stringdata = 0x7f1a5d2c56a0
<qt_meta_stringdata_QEventLoop>, data = 0x7f1a5d2c5640
<qt_meta_data_QEventLoop>, static_metacall = 0x7f1a5d12a6f0
<QEventLoop::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}}
returnCode = <optimized out>
#14 0x000055bdaba71ba1 in main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/plasma-workspace-5.16.2-2.fc31.x86_64/xembed-sni-proxy/main.cpp:68
app = <incomplete type>
disableSessionManagement = <optimized out>
manager = {<QObject> = {_vptr.QObject = 0x55bdaba80328 <vtable for
FdoSelectionManager+16>, static staticMetaObject = {d = {superdata = 0x0,
stringdata = 0x7f1a5d2cb300 <qt_meta_stringdata_QObject>, data = 0x7f1a5d2cb1e0
<qt_meta_data_QObject>, static_metacall = 0x7f1a5d15dfc0
<QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x55bdabf8dc20},
static staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0x7f1a5d2ce220
<qt_meta_stringdata_Qt>, data = 0x7f1a5d2cb420 <qt_meta_data_Qt>,
static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}},
<QAbstractNativeEventFilter> = {_vptr.QAbstractNativeEventFilter =
0x55bdaba803a0 <vtable for FdoSelectionManager+136>, d = 0x7f1a5cb830c4
<malloc+116>}, static staticMetaObject = {d = {superdata = 0x7f1a5d3d3fe0
<QObject::staticMetaObject>, stringdata = 0x55bdaba7b620
<qt_meta_stringdata_FdoSelectionManager>, data = 0x55bdaba7b580
<qt_meta_data_FdoSelectionManager>, static_metacall = 0x55bdaba72270
<FdoSelectionManager::qt_static_metacall(QObject*, QMetaObject::Call, int,
void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, m_damageEventBase = 1
'\001', m_damageWatches = {{d = 0x7f1a5d200a00 <QHashData::shared_null>, e =
0x7f1a5d200a00 <QHashData::shared_null>}}, m_proxies = {{d = 0x7f1a5d200a00
<QHashData::shared_null>, e = 0x7f1a5d200a00 <QHashData::shared_null>}},
m_selectionOwner = 0x55bdabf8d6c0}
rc = <optimized out>
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