Bug 377654

Summary: Discover crash every time when trying to install Inkscape
Product: [Applications] Discover Reporter: Unknown <null>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED UPSTREAM    
Severity: crash Keywords: drkonqi
Priority: NOR    
Version First Reported In: 5.9.3   
Target Milestone: ---   
Platform: Neon   
OS: Linux   
Latest Commit: Version Fixed/Implemented In:
Sentry Crash Report:

Description Unknown 2017-03-15 17:04:35 UTC 
Application: plasma-discover (5.9.3)

Qt Version: 5.7.1
Frameworks Version: 5.32.0
Operating System: Linux 4.8.0-42-generic x86_64
Distribution: KDE neon User Edition 5.9

-- Information about the crash:
- What I was doing when the application crashed:
nothing! just clicked on install and boom, every time
- Custom settings of the application:
no, this is a clean install of kde neon, only update I installed after OS instalation finished

The crash can be reproduced every time.

-- 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 0x7ff7e352b8c0 (LWP 2599))]

Thread 8 (Thread 0x7ff7727fc700 (LWP 2667)):
#0  0x00007ff7df857b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff7dac2e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff7dac2e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff7e048075b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff7e042b0ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff7e025af64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff7e025fb48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff7dcce96ba in start_thread (arg=0x7ff7727fc700) at pthread_create.c:333
#8  0x00007ff7df86382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 7 (Thread 0x7ff797fff700 (LWP 2612)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff7e02609fb in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#2  0x00007ff7e0259bab in QSemaphore::acquire(int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#3  0x00007ff7e04580ee in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff7de959308 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#5  0x00007ff7de9e9a5d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#6  0x00007ff7e0457e89 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff7de91c466 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#8  0x00007ff7de91c90d in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#9  0x00007ff7e0457e89 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff7de9d6676 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#11 0x00007ff7de9da2db in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#12 0x00007ff7de9dad06 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#13 0x00007ff7de9c6331 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#14 0x00007ff7e0457e89 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007ff7de99a095 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#16 0x00007ff7de99a150 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#17 0x00007ff7de9a4ed1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Network.so.5
#18 0x00007ff7e138fecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#19 0x00007ff7e13978c6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#20 0x00007ff7e042d0c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#21 0x00007ff7e0480bfd in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#22 0x00007ff7dac2e197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007ff7dac2e3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#24 0x00007ff7dac2e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#25 0x00007ff7e048075b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x00007ff7e042b0ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007ff7e025af64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007ff7e025fb48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007ff7dcce96ba in start_thread (arg=0x7ff797fff700) at pthread_create.c:333
#30 0x00007ff7df86382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7ff7b8bc9700 (LWP 2605)):
#0  0x00007ff7df857b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff7dac2e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff7dac2e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff7e048075b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff7e042b0ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff7e025af64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff7e025fb48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff7dcce96ba in start_thread (arg=0x7ff7b8bc9700) at pthread_create.c:333
#8  0x00007ff7df86382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7ff7c2e88700 (LWP 2604)):
#0  0x00007ff7e047fc98 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#1  0x00007ff7dac2d91d in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff7dac2e2bb in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff7dac2e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff7e048075b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff7e042b0ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff7e025af64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff7e2ba1fc6 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#8  0x00007ff7e025fb48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007ff7dcce96ba in start_thread (arg=0x7ff7c2e88700) at pthread_create.c:333
#10 0x00007ff7df86382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7ff7c3fff700 (LWP 2602)):
#0  0x00007ff7df857b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff7dac2e38c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff7dac2e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff7e048075b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007ff7e042b0ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff7e025af64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff7e0bd1bf5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007ff7e025fb48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff7dcce96ba in start_thread (arg=0x7ff7c3fff700) at pthread_create.c:333
#9  0x00007ff7df86382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7ff7c97c3700 (LWP 2601)):
#0  0x00007ff7df85369d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff7dac716f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff7dac2de74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff7dac2e330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff7dac2e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff7e048075b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007ff7e042b0ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff7e025af64 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff7e3670735 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007ff7e025fb48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff7dcce96ba in start_thread (arg=0x7ff7c97c3700) at pthread_create.c:333
#11 0x00007ff7df86382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ff7d1da7700 (LWP 2600)):
#0  0x00007ff7df857b5d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ff7da7c3c62 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff7da7c58d7 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff7d42ffd79 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ff7e025fb48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007ff7dcce96ba in start_thread (arg=0x7ff7d1da7700) at pthread_create.c:333
#6  0x00007ff7df86382d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff7e352b8c0 (LWP 2599)):
[KCrash Handler]
#6  0x00007ff7e0256f64 in QMutex::lock() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007ff7e042ef79 in QCoreApplication::postEvent(QObject*, QEvent*, int) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007ff7ac36cdfe in ?? () from /usr/lib/x86_64-linux-gnu/qt5/plugins/discover/packagekit-backend.so
#9  0x00007ff7e04581f6 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007ff7ac1325ff in PackageKit::Transaction::finished(PackageKit::Transaction::Exit, unsigned int) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#11 0x00007ff7ac13789d in PackageKit::TransactionPrivate::finished(unsigned int, unsigned int) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#12 0x00007ff7ac137b70 in PackageKit::TransactionPrivate::daemonQuit() () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#13 0x00007ff7ac134da9 in ?? () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#14 0x00007ff7e0457e89 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007ff7ac13085e in PackageKit::DaemonPrivate::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#16 0x00007ff7ac12a9d8 in ?? () from /usr/lib/x86_64-linux-gnu/libpackagekitqt5.so.0
#17 0x00007ff7e0457e89 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007ff7e36c90df in QDBusServiceWatcher::serviceOwnerChanged(QString const&, QString const&, QString const&) () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#19 0x00007ff7e36c918f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#20 0x00007ff7e36c970f in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#21 0x00007ff7e36c9ae0 in QDBusServiceWatcher::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#22 0x00007ff7e367c923 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#23 0x00007ff7e0458d99 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007ff7e138fecc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007ff7e13978c6 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#26 0x00007ff7e042d0c8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#27 0x00007ff7e042f78b in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#28 0x00007ff7e0480333 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#29 0x00007ff7dac2e197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007ff7dac2e3f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#31 0x00007ff7dac2e49c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007ff7e048073f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#33 0x00007ff7e042b0ba in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#34 0x00007ff7e04336cc in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#35 0x000000000040d601 in ?? ()
#36 0x00007ff7df77d830 in __libc_start_main (main=0x40cee0, argc=1, argv=0x7ffe9f213a38, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe9f213a28) at ../csu/libc-start.c:291
#37 0x000000000040d859 in _start ()

Possible duplicates by query: bug 376354.

Reported using DrKonqi
Comment 1 Aleix Pol 2017-03-17 17:29:54 UTC 
Can you try to generate a new backtrace with debug symbols?
On neon you can install it using plasma-discover-dbgsym.

Thank you.
Comment 2 Aleix Pol 2017-03-17 17:32:05 UTC 
*** Bug 377655 has been marked as a duplicate of this bug. ***
Comment 3 Aleix Pol 2017-03-17 17:32:29 UTC 
*** Bug 377659 has been marked as a duplicate of this bug. ***
Comment 4 Aleix Pol 2017-03-17 17:34:15 UTC 
Also note that it's PackageKit crashing on both, if you can send us the backtrace from coredumpctl that would be ace.
Comment 5 Aleix Pol 2017-03-17 17:58:33 UTC 
I've been testing it further. The crash in Discover has been fixed, PackageKit still crashes nevertheless.

$ coredumpctl -1 gdb

This is PacakgeKit backtrace, for completion:
(gdb) where
#0  0x00007f4fe4052aea in pkgDepCache::operator[] (this=0x7f4fd4012a60, I=...) at /usr/include/apt-pkg/depcache.h:371
#1  pkgCacheFile::operator[] (this=0x7f4fd4008cc0, I=...) at /usr/include/apt-pkg/cachefile.h:64
#2  AptCacheFile::findCandidateVer (this=0x7f4fd4008cc0, pkg=...) at apt-cache-file.cpp:411
#3  0x00007f4fe4060536 in AptIntf::resolvePackageIds (this=this@entry=0x55ec62a68640, package_ids=0x7f4fd40465e0, filters=filters@entry=1) at apt-intf.cpp:2067
#4  0x00007f4fe40629cf in pk_backend_resolve_thread (job=<optimized out>, params=<optimized out>, user_data=<optimized out>) at pk-backend-aptcc.cpp:667
#5  0x000055ec61dcdbca in pk_backend_job_thread_setup (thread_data=0x55ec62a3bea0) at pk-backend-job.c:813
#6  0x00007f4fe81c1bb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f4fe7f3b6ba in start_thread (arg=0x7f4fde888700) at pthread_create.c:333
#8  0x00007f4fe7c7182d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109
Comment 6 Unknown 2017-03-18 19:40:43 UTC 
I am sorry I forgot to check emails..
I tried to install now after 20 times and it works but after that I closed discover again and open it, in moment when I typed inkscape it crashes again. I installed plasma-discover-dbgsym but i don't know how to use it.
I tried to type other words and it crashes every time.