https://bugs.kde.org/show_bug.cgi?id=525100

            Bug ID: 525100
           Summary: Discover Notifier crashed after restart
    Classification: Applications
           Product: Discover
      Version First 6.7.4
       Reported In:
          Platform: Fedora RPMs
                OS: Linux
            Status: REPORTED
          Keywords: drkonqi
          Severity: crash
          Priority: NOR
         Component: discover
          Assignee: [email protected]
          Reporter: [email protected]
                CC: [email protected]
  Target Milestone: ---

Application: DiscoverNotifier (6.7.4)

ApplicationNotResponding [ANR]: false
Qt Version: 6.11.1
Frameworks Version: 6.29.0
Operating System: Linux 7.1.10-200.fc44.x86_64 x86_64
Windowing System: Wayland
Distribution: "Fedora release 44 (Forty Four)"
DrKonqi: 6.7.4 [CoredumpBackend]

-- Information about the crash:
Discover Notifier crashed after restart the operation system.

The reporter is unsure if this crash is reproducible.

-- Backtrace:
Application: Discover Notifier (DiscoverNotifier), signal: Segmentation fault

Downloading separate debug info for /usr/libexec/DiscoverNotifier...
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Using host libthread_db library "/lib64/libthread_db.so.1".
Core was generated by `/usr/libexec/DiscoverNotifier --check-delay 20'.
Program terminated with signal SIGSEGV, Segmentation fault.
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#0  __pthread_kill_implementation (threadid=<optimized out>,
signo=signo@entry=11, no_tid=no_tid@entry=0) at pthread_kill.c:44
44            return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO
(ret) : 0;
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[Current thread is 7 (Thread 0x7f133cdbc6c0 (LWP 7184))]

Thread 7 (Thread 0x7f133cdbc6c0 (LWP 7184)):
#0  __syscall_cancel_arch () at
../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007f135207652c in __internal_syscall_cancel (a1=<optimized out>,
a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>,
a6=<optimized out>, nr=7) at cancellation.c:49
#2  0x00007f1352076574 in __syscall_cancel (a1=<optimized out>, a2=<optimized
out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized
out>, nr=7) at cancellation.c:75
#3  0x00007f13520efdfe in __GI___poll (fds=fds@entry=0x7f133cdbb6f0,
nfds=nfds@entry=2, timeout=timeout@entry=-1) at
../sysdeps/unix/sysv/linux/poll.c:29
#4  0x00007f133f6ee07b in poll (__fds=0x7f133cdbb6f0, __nfds=2, __timeout=-1)
at /usr/include/bits/poll2.h:44
#5  QtWaylandClient::EventThread::run (this=0x5592ec278330) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/plugins/platforms/wayland/qwaylanddisplay.cpp:186
#6  0x00007f135290ce8f in QThreadPrivate::start (arg=0x5592ec278330) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/thread/qthread_unix.cpp:466
#7  0x00007f1352079c19 in start_thread (arg=<optimized out>) at
pthread_create.c:454
#8  0x00007f13520fd5cc in __GI___clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 6 (Thread 0x7f13365ff6c0 (LWP 7253)):
#0  syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38
#1  0x00007f135111642b in g_cond_wait_impl (cond=0x5592ec3df378,
mutex=0x5592ec3df370) at ../glib/gthread-posix.c:1026
#2  g_cond_wait (cond=0x5592ec3df378, mutex=0x5592ec3df370) at
../glib/gthread.c:1686
#3  0x00007f13510a854c in g_async_queue_pop_intern_unlocked
(queue=0x5592ec3df370, wait=1, end_time=-1) at ../glib/gasyncqueue.c:376
#4  0x00007f135111cca4 in g_thread_pool_spawn_thread (data=<optimized out>) at
../glib/gthreadpool.c:297
#5  0x00007f135111bc52 in g_thread_proxy (data=0x5592ec3df3c0) at
../glib/gthread.c:893
#6  0x00007f1352079c19 in start_thread (arg=<optimized out>) at
pthread_create.c:454
#7  0x00007f13520fd5cc in __GI___clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 5 (Thread 0x7f13355fd6c0 (LWP 7257)):
#0  __syscall_cancel_arch () at
../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007f135207652c in __internal_syscall_cancel (a1=<optimized out>,
a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>,
a6=<optimized out>, nr=271) at cancellation.c:49
#2  0x00007f1352076574 in __syscall_cancel (a1=<optimized out>, a2=<optimized
out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized
out>, nr=271) at cancellation.c:75
#3  0x00007f13520f0426 in __GI_ppoll (fds=fds@entry=0x7f13200008c0,
nfds=nfds@entry=2, timeout=<optimized out>, timeout@entry=0x0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:42
#4  0x00007f13510e6125 in ppoll (__fds=0x7f13200008c0, __nfds=2, __timeout=0x0,
__ss=0x0) at /usr/include/bits/poll2.h:101
#5  g_main_context_poll_unlocked (priority=<optimized out>,
context=0x5592ec3e9b80, timeout_usec=<optimized out>, fds=0x7f13200008c0,
n_fds=2) at ../glib/gmain.c:4837
#6  g_main_context_iterate_unlocked (context=0x5592ec3e9b80,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
../glib/gmain.c:4511
#7  0x00007f13510e62e7 in g_main_loop_run (loop=0x5592ec3e9d70) at
../glib/gmain.c:4721
#8  0x00007f134de129f2 in gdbus_shared_thread_func (user_data=0x5592ec3eb6e0)
at ../gio/gdbusprivate.c:284
#9  0x00007f135111bc52 in g_thread_proxy (data=0x5592ec3e9d90) at
../glib/gthread.c:893
#10 0x00007f1352079c19 in start_thread (arg=<optimized out>) at
pthread_create.c:454
#11 0x00007f13520fd5cc in __GI___clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 4 (Thread 0x7f1335dfe6c0 (LWP 7254)):
#0  __syscall_cancel_arch () at
../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007f135207652c in __internal_syscall_cancel (a1=<optimized out>,
a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>,
a6=<optimized out>, nr=271) at cancellation.c:49
#2  0x00007f1352076574 in __syscall_cancel (a1=<optimized out>, a2=<optimized
out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized
out>, nr=271) at cancellation.c:75
#3  0x00007f13520f0426 in __GI_ppoll (fds=fds@entry=0x7f132c000880,
nfds=nfds@entry=1, timeout=<optimized out>, timeout@entry=0x7f1335dfd6c0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:42
#4  0x00007f13510e6125 in ppoll (__fds=0x7f132c000880, __nfds=1,
__timeout=0x7f1335dfd6c0, __ss=0x0) at /usr/include/bits/poll2.h:101
#5  g_main_context_poll_unlocked (priority=<optimized out>,
context=0x5592ec3db5e0, timeout_usec=<optimized out>, fds=0x7f132c000880,
n_fds=1) at ../glib/gmain.c:4837
#6  g_main_context_iterate_unlocked (context=context@entry=0x5592ec3db5e0,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
../glib/gmain.c:4511
#7  0x00007f13510e61e3 in g_main_context_iteration (context=0x5592ec3db5e0,
may_block=may_block@entry=1) at ../glib/gmain.c:4582
#8  0x00007f13510e6231 in glib_worker_main (data=<optimized out>) at
../glib/gmain.c:6790
#9  0x00007f135111bc52 in g_thread_proxy (data=0x5592ec3df8c0) at
../glib/gthread.c:893
#10 0x00007f1352079c19 in start_thread (arg=<optimized out>) at
pthread_create.c:454
#11 0x00007f13520fd5cc in __GI___clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 3 (Thread 0x7f133d5bd6c0 (LWP 7183)):
#0  __syscall_cancel_arch () at
../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007f135207652c in __internal_syscall_cancel (a1=<optimized out>,
a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>,
a6=<optimized out>, nr=202) at cancellation.c:49
#2  0x00007f1352076877 in __futex_abstimed_wait_common64 (private=<optimized
out>, futex_word=<optimized out>, expected=<optimized out>, op=<optimized out>,
abstime=<optimized out>, cancel=true) at futex-internal.c:57
#3  __futex_abstimed_wait_common (futex_word=<optimized out>,
expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>,
private=<optimized out>, cancel=true) at futex-internal.c:87
#4  __GI___futex_abstimed_wait_cancelable64 (futex_word=<optimized out>,
expected=<optimized out>, clockid=<optimized out>, abstime=<optimized out>,
private=<optimized out>) at futex-internal.c:139
#5  0x00007f13520790cc in __pthread_cond_wait_common (cond=0x5592ec36e7a8,
mutex=0x5592ec36e780, clockid=0, abstime=0x0) at pthread_cond_wait.c:421
#6  ___pthread_cond_wait (cond=0x5592ec36e7a8, mutex=0x5592ec36e780) at
pthread_cond_wait.c:453
#7  0x00007f135291599b in QWaitConditionPrivate::wait (this=0x5592ec36e780,
deadline=...) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/thread/qwaitcondition_unix.cpp:68
#8  QWaitCondition::wait (this=this@entry=0x5592ec26c820,
mutex=mutex@entry=0x5592ec26c818, deadline=...) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/thread/qwaitcondition_unix.cpp:146
#9  0x00007f133f6ee01e in QtWaylandClient::EventThread::waitForReading
(this=0x5592ec26c7e0) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/plugins/platforms/wayland/qwaylanddisplay.cpp:220
#10 QtWaylandClient::EventThread::run (this=0x5592ec26c7e0) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/plugins/platforms/wayland/qwaylanddisplay.cpp:181
#11 0x00007f135290ce8f in QThreadPrivate::start (arg=0x5592ec26c7e0) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/thread/qthread_unix.cpp:466
#12 0x00007f1352079c19 in start_thread (arg=<optimized out>) at
pthread_create.c:454
#13 0x00007f13520fd5cc in __GI___clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 2 (Thread 0x7f133f6c96c0 (LWP 7115)):
#0  __syscall_cancel_arch () at
../sysdeps/unix/sysv/linux/x86_64/syscall_cancel.S:56
#1  0x00007f135207652c in __internal_syscall_cancel (a1=<optimized out>,
a2=<optimized out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>,
a6=<optimized out>, nr=271) at cancellation.c:49
#2  0x00007f1352076574 in __syscall_cancel (a1=<optimized out>, a2=<optimized
out>, a3=<optimized out>, a4=<optimized out>, a5=<optimized out>, a6=<optimized
out>, nr=271) at cancellation.c:75
#3  0x00007f13520f0426 in __GI_ppoll (fds=fds@entry=0x7f1338001620,
nfds=nfds@entry=3, timeout=<optimized out>, timeout@entry=0x0,
sigmask=sigmask@entry=0x0) at ../sysdeps/unix/sysv/linux/ppoll.c:42
#4  0x00007f13510e6125 in ppoll (__fds=0x7f1338001620, __nfds=3, __timeout=0x0,
__ss=0x0) at /usr/include/bits/poll2.h:101
#5  g_main_context_poll_unlocked (priority=<optimized out>,
context=0x7f1338000ca0, timeout_usec=<optimized out>, fds=0x7f1338001620,
n_fds=3) at ../glib/gmain.c:4837
#6  g_main_context_iterate_unlocked (context=context@entry=0x7f1338000ca0,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
../glib/gmain.c:4511
#7  0x00007f13510e61e3 in g_main_context_iteration (context=0x7f1338000ca0,
may_block=1) at ../glib/gmain.c:4582
#8  0x00007f1352a69a9d in QEventDispatcherGlib::processEvents
(this=0x7f1338000880, flags=...) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/kernel/qeventdispatcher_glib.cpp:402
#9  0x00007f135271d57b in QEventLoop::exec (this=this@entry=0x7f133f6c86b0,
flags=..., flags@entry=...) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/global/qflags.h:78
#10 0x00007f1352850e0a in QThread::exec (this=this@entry=0x7f13539fedc0
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/thread/qthread.cpp:672
#11 0x00007f135393d704 in QDBusConnectionManager::run (this=0x7f13539fedc0
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/dbus/qdbusconnectionmanager.cpp:145
#12 0x00007f135290ce8f in QThreadPrivate::start (arg=0x7f13539fedc0
<QGlobalStatic<QtGlobalStatic::Holder<(anonymous namespace)::Q_QGS__q_manager>
>::instance()::holder>) at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/thread/qthread_unix.cpp:466
#13 0x00007f1352079c19 in start_thread (arg=<optimized out>) at
pthread_create.c:454
#14 0x00007f13520fd5cc in __GI___clone3 () at
../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

Thread 1 (Thread 0x7f134d79fe00 (LWP 7079)):
[KCrash Handler]
#4  QtPrivate::lengthHelperPointer<char> (data=<optimized out>) at
/usr/include/qt6/QtCore/qbytearrayview.h:78
#5  QByteArrayView::QByteArrayView<char*, true> (this=<optimized out>,
data=<optimized out>, this=<optimized out>, data=<optimized out>) at
/usr/include/qt6/QtCore/qbytearrayview.h:166
#6  AppStream::Pool::load (this=0x5592ec3c8df0) at ../qt/pool.cpp:102
#7  0x00007f133c4dc700 in PackageKitNotifier::PackageKitNotifier
(this=this@entry=0x5592ec3d2a90, parent=0x0) at
/usr/src/debug/plasma-discover-6.7.4-1.fc44.x86_64/libdiscover/backends/PackageKitBackend/PackageKitNotifier.cpp:51
#8  0x00007f133c4e2bf7 in qt_plugin_instance () at
/usr/src/debug/plasma-discover-6.7.4-1.fc44.x86_64/redhat-linux-build/libdiscover/backends/PackageKitBackend/DiscoverPackageKitNotifier_autogen/include/moc_PackageKitNotifier.cpp:187
#9  0x00007f1352a6228f in QLibraryPrivate::pluginInstance (this=0x5592ec3b4f20)
at
/usr/src/debug/qt6-qtbase-6.11.1-1.fc44.x86_64/src/corelib/plugin/qlibrary.cpp:517
#10 0x00005592d8718609 in BackendNotifierFactory::allBackends (this=<optimized
out>) at
/usr/src/debug/plasma-discover-6.7.4-1.fc44.x86_64/notifier/BackendNotifierFactory.cpp:36
#11 DiscoverNotifier::DiscoverNotifier (parent=0x0, this=0x7ffe0bf590e8,
checkDelay=<synthetic pointer>...) at
/usr/src/debug/plasma-discover-6.7.4-1.fc44.x86_64/notifier/DiscoverNotifier.cpp:74
#12 NotifierItem::NotifierItem (this=0x7ffe0bf590d0, checkDelay=<synthetic
pointer>...) at
/usr/src/debug/plasma-discover-6.7.4-1.fc44.x86_64/notifier/NotifierItem.cpp:13
#13 main (argc=<optimized out>, argv=<optimized out>) at
/usr/src/debug/plasma-discover-6.7.4-1.fc44.x86_64/notifier/main.cpp:90

Reported using DrKonqi

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