Application: kdeinit5 (5.12.4)

Qt Version: 5.10.0
Frameworks Version: 5.45.0
Operating System: Linux 4.13.0-39-generic x86_64
Distribution: KDE neon User Edition 5.12

-- Information about the crash:
- What I was doing when the application crashed:

This crash happens sometimes when I close the system monitor.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Monitor do sistema (kdeinit5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fb8240fa780 (LWP 12452))]

Thread 5 (Thread 0x7fb7e3fff700 (LWP 12474)):
#0  0x00007fb8221d074d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb81e7c538c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb81e7c5712 in g_main_loop_run () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb80b6e79d6 in ?? () from /usr/lib/x86_64-linux-gnu/libgio-2.0.so.0
#4  0x00007fb81e7ebbb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb8206376ba in start_thread (arg=0x7fb7e3fff700) at pthread_create.c:333
#6  0x00007fb8221dc41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7fb7ebc92700 (LWP 12473)):
#0  0x00007fb81e809a90 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fb81e7c52ae in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fb81e7c549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb81e7c54d9 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb81e7ebbb5 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb8206376ba in start_thread (arg=0x7fb7ebc92700) at pthread_create.c:333
#6  0x00007fb8221dc41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7fb7fa960700 (LWP 12455)):
#0  0x00007fb8221cc27d in read () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fb81e370073 in ?? () from /usr/lib/nvidia-390/tls/libnvidia-tls.so.390.48
#2  0x00007fb81e8086f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fb81e7c4e74 in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fb81e7c5330 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007fb81e7c549c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007fb8227815cb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007fb82272864a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007fb822548554 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007fb81877a2c5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#10 0x00007fb82254d6eb in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007fb8206376ba in start_thread (arg=0x7fb7fa960700) at pthread_create.c:333
#12 0x00007fb8221dc41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7fb8093f8700 (LWP 12453)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007fb82196e91c in std::condition_variable::wait(std::unique_lock<std::mutex>&) () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#2  0x00007fb80fbb77ae in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#3  0x00007fb80fbb78c9 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5WebKit.so.5
#4  0x00007fb821973c80 in ?? () from /usr/lib/x86_64-linux-gnu/libstdc++.so.6
#5  0x00007fb8206376ba in start_thread (arg=0x7fb8093f8700) at pthread_create.c:333
#6  0x00007fb8221dc41d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7fb8240fa780 (LWP 12452)):
[KCrash Handler]
#6  0x00007fb82210a428 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:54
#7  0x00007fb82210c02a in __GI_abort () at abort.c:89
#8  0x00007fb82214c7ea in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x7fb822265ed8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007fb82215537a in malloc_printerr (ar_ptr=<optimized out>, ptr=<optimized out>, str=0x7fb822265fe8 "double free or corruption (out)", action=3) at malloc.c:5006
#10 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3867
#11 0x00007fb82215953c in __GI___libc_free (mem=<optimized out>) at malloc.c:2968
#12 0x00007fb822754454 in QObjectPrivate::Connection::~Connection() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007fb82275ed1c in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007fb822547499 in QThread::~QThread() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007fb808337be1 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#16 0x00007fb8082e5ed8 in QXcbConnection::~QXcbConnection() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#17 0x00007fb8082e6489 in QXcbConnection::~QXcbConnection() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#18 0x00007fb8082e7fa6 in QXcbIntegration::~QXcbIntegration() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#19 0x00007fb8082e80a9 in QXcbIntegration::~QXcbIntegration() () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#20 0x00007fb822cb9333 in QGuiApplicationPrivate::~QGuiApplicationPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#21 0x00007fb820ba83e9 in QApplicationPrivate::~QApplicationPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#22 0x00007fb82275eedc in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#23 0x00007fb82272c802 in QCoreApplication::~QCoreApplication() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007fb820baa2b4 in QApplication::~QApplication() () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#25 0x00007fb811937571 in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_ksysguard.so
#26 0x0000000000408679 in ?? ()
#27 0x0000000000409c71 in ?? ()
#28 0x000000000040a307 in ?? ()
#29 0x0000000000404ed4 in ?? ()
#30 0x00007fb8220f5830 in __libc_start_main (main=0x404600, argc=5, argv=0x7fff48d83bd8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff48d83bc8) at ../csu/libc-start.c:291
#31 0x0000000000405c69 in _start ()

Possible duplicates by query: bug 392350, bug 387393, bug 381268.

Reported using DrKonqi