Application: plasma-discover (5.9.5)
 (Compiled from sources)
Qt Version: 5.7.1
Frameworks Version: 5.31.0
Operating System: Linux 4.10.0-37-generic x86_64
Distribution: Ubuntu 17.04

-- Information about the crash:
- What I was doing when the application crashed:
Initial application update after "upgrading" from Kubuntu from Ubuntu 17.04 via bash

The crash can be reproduced sometimes.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f207b828440 (LWP 5979))]

Thread 10 (Thread 0x7f1fc654a700 (LWP 6024)):
#0  0x00007f2073b28510 in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f2077798b4b in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5

Thread 9 (Thread 0x7f1fc73a1700 (LWP 6018)):
#0  0x00007f20719caef4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f207198510a in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f20719855e0 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2071985902 in g_main_loop_run () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f20142d5476 in  () at /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#5  0x00007f20719acf65 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f2073b226da in start_thread (arg=0x7f1fc73a1700) at pthread_create.c:456
#7  0x00007f2076d93d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 8 (Thread 0x7f1fc7ba2700 (LWP 6017)):
#0  0x00007f2076d838ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f20719c9b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2071985042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2071985514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f207198568c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f20719856d1 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f20719acf65 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f2073b226da in start_thread (arg=0x7f1fc7ba2700) at pthread_create.c:456
#8  0x00007f2076d93d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 7 (Thread 0x7f2036ffd700 (LWP 5991)):
#0  0x00007f2076d838ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f20719c9b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2071985042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2071985514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f207198568c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f20779bbf2b in QEventDispatcherGlib::~QEventDispatcherGlib() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2036ffcc90 in  ()
#7  0x00005625ee53d8e0 in  ()
#8  0xf1649513d6b52800 in  ()
#9  0x00007f2036ffcd00 in  ()
#10 0x00007f2036ffcd00 in  ()
#11 0x0000000000000000 in  ()

Thread 6 (Thread 0x7f2046cd2700 (LWP 5986)):
#0  0x00007f2076d838ad in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f20719c9b30 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2071985042 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f2071985514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f207198568c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f20779bbf2b in QEventDispatcherGlib::~QEventDispatcherGlib() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f2046cd1c90 in  ()
#7  0x00005625ee4f1d90 in  ()
#8  0xf1649513d6b52800 in  ()
#9  0x00007f2046cd1d00 in  ()
#10 0x00007f2046cd1d00 in  ()
#11 0x0000000000000000 in  ()

Thread 5 (Thread 0x7f2057fff700 (LWP 5985)):
#0  0x00007f207198549b in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f207198568c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f20779bbf2b in QEventDispatcherGlib::~QEventDispatcherGlib() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007f2057ffec20 in  ()
#4  0x00005625ee396cb0 in  ()
#5  0xf1649513d6b52800 in  ()
#6  0x00007f2057ffec90 in  ()
#7  0x00007f2057ffec90 in  ()
#8  0x0000000000000000 in  ()

Thread 4 (Thread 0x7f205edca700 (LWP 5982)):
#0  0x00007f2076da1d8f in __libc_enable_asynccancel () at ../sysdeps/unix/sysv/linux/x86_64/cancellation.S:67
#1  0x00007f2076d87d82 in poll () at ../sysdeps/unix/syscall-template.S:84
#2  0x00007f2071985576 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f207198568c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f20779bbf2b in QEventDispatcherGlib::~QEventDispatcherGlib() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f205edc9c70 in  ()
#6  0x00005625ede22d10 in  ()
#7  0xf1649513d6b52800 in  ()
#8  0x00007f205edc9ce0 in  ()
#9  0x00007f205edc9ce0 in  ()
#10 0x0000000000000000 in  ()

Thread 3 (Thread 0x7f205ffe2700 (LWP 5981)):
#0  0x00007f20719caef4 in g_mutex_unlock () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f2071984f24 in g_main_context_check () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f2071985514 in  () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f207198568c in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f20779bbf2b in QEventDispatcherGlib::~QEventDispatcherGlib() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f205ffe1c60 in  ()
#6  0x00005625edde7cd0 in  ()
#7  0xf1649513d6b52800 in  ()
#8  0x00007f205ffe1cd0 in  ()
#9  0x00007f2058000020 in  ()
#10 0x0000000000000000 in  ()

Thread 2 (Thread 0x7f2068c7a700 (LWP 5980)):
#0  0x00007f2076d87d8d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f2071514c62 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f20715168d7 in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f206b845ed9 in QXcbConnection::atomName(unsigned int) () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f2073b226da in start_thread (arg=0x7f2068c7a700) at pthread_create.c:456
#5  0x00007f2076d93d7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7f207b828440 (LWP 5979)):
[KCrash Handler]
#8  0x00007f207a85c890 in UpdateItem::setProgress(double) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#9  0x00007f207a85d5fc in UpdateModel::resourceHasProgressed(AbstractResource*, double) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#10 0x00007f207799381e in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f207a8781bc in ResourcesUpdatesModel::resourceProgressed(AbstractResource*, double) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#12 0x00007f207799381e in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f207a8777dc in AbstractBackendUpdater::resourceProgressed(AbstractResource*, double) () at /usr/lib/x86_64-linux-gnu/plasma-discover/libDiscoverCommon.so
#14 0x00007f2044150d49 in  () at /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
#15 0x00007f207799381e in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#16 0x00007f20345d0104 in PackageKit::Transaction::itemProgress(QString const&, PackageKit::Transaction::Status, unsigned int) () at /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#17 0x00007f20345d1f69 in  () at /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#18 0x00007f20779934a9 in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f20345e0361 in  () at /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#20 0x00007f20345e0b50 in  () at /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#21 0x00007f207960d650 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#22 0x00005625efcc5670 in  ()
#23 0x00007ffde1383e60 in  ()
#24 0x00005625edd7ebf0 in  ()
#25 0x00005625edd7daf0 in  ()
#26 0x00007ffde1383e10 in  ()
#27 0x0000000000000000 in  ()

Possible duplicates by query: bug 385391, bug 383817, bug 381513, bug 373297, bug 372101.

Reported using DrKonqi