Application: ktorrent (5.1.1)

Qt Version: 5.12.3
Frameworks Version: 5.61.0
Operating System: Linux 5.2.5-050205-generic x86_64
Distribution: KDE neon User Edition 5.16

-- Information about the crash:
- What I was doing when the application crashed:
Ktorrent plyes well, but it is crashing ever I close the app.
I tryed reinstall, not solved

The crash can be reproduced every time.

-- Backtrace:
Application: KTorrent (ktorrent), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f045e89b800 (LWP 6193))]

Thread 13 (Thread 0x7f03feffd700 (LWP 6232)):
#0  0x00007f04543f79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f04347814d0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x7f0434781480, cond=0x7f04347814a8) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x7f04347814a8, mutex=0x7f0434781480) at pthread_cond_wait.c:655
#3  0x00007f04595bedbb in QWaitConditionPrivate::wait (deadline=..., this=0x7f0434781480) at thread/qwaitcondition_unix.cpp:146
#4  QWaitCondition::wait (this=<optimized out>, mutex=0x7f0434781a20, deadline=...) at thread/qwaitcondition_unix.cpp:225
#5  0x00007f04595bf0c9 in QWaitCondition::wait (this=0x7f0434781a28, mutex=0x7f0434781a20, time=<optimized out>) at thread/qwaitcondition_unix.cpp:208
#6  0x00007f045e0eb403 in ?? () from /usr/lib/x86_64-linux-gnu/libKF5Torrent.so.6
#7  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f0434781a10) at thread/qthread_unix.cpp:361
#8  0x00007f04543f16db in start_thread (arg=0x7f03feffd700) at pthread_create.c:463
#9  0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f0420df2700 (LWP 6210)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0420df1be0, expected=0, futex_word=0x7f04346d0310) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0420df1ca0, mutex=0x7f04346d02c0, cond=0x7f04346d02e8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346d02e8, mutex=0x7f04346d02c0, abstime=0x7f0420df1ca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346d02c0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346d02c0) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346d00a0, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346d0090) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346d0090) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f0420df2700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f04215f3700 (LWP 6209)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f04215f2be0, expected=0, futex_word=0x7f04346cfb10) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f04215f2ca0, mutex=0x7f04346cfac0, cond=0x7f04346cfae8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346cfae8, mutex=0x7f04346cfac0, abstime=0x7f04215f2ca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346cfac0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346cfac0) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346ce5e0, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346ce5d0) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346ce5d0) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f04215f3700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f0421df4700 (LWP 6208)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0421df3be0, expected=0, futex_word=0x7f04346b4fc0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0421df3ca0, mutex=0x7f04346b4f70, cond=0x7f04346b4f98) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346b4f98, mutex=0x7f04346b4f70, abstime=0x7f0421df3ca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346b4f70, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346b4f70) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346b4d40, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346b4d30) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346b4d30) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f0421df4700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f04225f5700 (LWP 6207)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f04225f4be0, expected=0, futex_word=0x7f04346b4650) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f04225f4ca0, mutex=0x7f04346b4600, cond=0x7f04346b4628) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346b4628, mutex=0x7f04346b4600, abstime=0x7f04225f4ca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346b4600, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346b4600) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346b43e0, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346b43d0) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346b43d0) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f04225f5700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f0422df6700 (LWP 6206)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0422df5be0, expected=0, futex_word=0x7f04346b3d90) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0422df5ca0, mutex=0x7f04346b3d40, cond=0x7f04346b3d68) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346b3d68, mutex=0x7f04346b3d40, abstime=0x7f0422df5ca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346b3d40, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346b3d40) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346b38e0, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346b38d0) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346b38d0) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f0422df6700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f04235f7700 (LWP 6205)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f04235f6be0, expected=0, futex_word=0x7f04346a97e0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f04235f6ca0, mutex=0x7f04346a9790, cond=0x7f04346a97b8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346a97b8, mutex=0x7f04346a9790, abstime=0x7f04235f6ca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346a9790, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346a9790) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346a93d0, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346a93c0) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346a93c0) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f04235f7700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f0423fff700 (LWP 6204)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0423ffebe0, expected=0, futex_word=0x7f04346a7ea0) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0423ffeca0, mutex=0x7f04346a7e50, cond=0x7f04346a7e78) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346a7e78, mutex=0x7f04346a7e50, abstime=0x7f0423ffeca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346a7e50, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346a7e50) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346a84c0, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346a84b0) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346a84b0) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f0423fff700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f0428c05700 (LWP 6203)):
#0  0x00007f04543f7ed9 in futex_reltimed_wait_cancelable (private=<optimized out>, reltime=0x7f0428c04be0, expected=0, futex_word=0x7f04346a7410) at ../sysdeps/unix/sysv/linux/futex-internal.h:142
#1  __pthread_cond_wait_common (abstime=0x7f0428c04ca0, mutex=0x7f04346a73c0, cond=0x7f04346a73e8) at pthread_cond_wait.c:533
#2  __pthread_cond_timedwait (cond=0x7f04346a73e8, mutex=0x7f04346a73c0, abstime=0x7f0428c04ca0) at pthread_cond_wait.c:667
#3  0x00007f04595bed36 in QWaitConditionPrivate::wait_relative (this=0x7f04346a73c0, deadline=...) at thread/qwaitcondition_unix.cpp:136
#4  QWaitConditionPrivate::wait (deadline=..., this=0x7f04346a73c0) at thread/qwaitcondition_unix.cpp:144
#5  QWaitCondition::wait (this=<optimized out>, mutex=0x7f04346a1a80, deadline=...) at thread/qwaitcondition_unix.cpp:225
#6  0x00007f04595bf096 in QWaitCondition::wait (this=this@entry=0x7f04346a72f0, mutex=mutex@entry=0x7f04346a1a80, time=<optimized out>) at thread/qwaitcondition_unix.cpp:209
#7  0x00007f04595bc740 in QThreadPoolThread::run (this=0x7f04346a72e0) at thread/qthreadpool.cpp:139
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f04346a72e0) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f0428c05700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f043f5ef700 (LWP 6201)):
#0  0x00007f04543f79f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55f04bd590b8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x55f04bd59068, cond=0x55f04bd59090) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x55f04bd59090, mutex=0x55f04bd59068) at pthread_cond_wait.c:655
#3  0x00007f042ad0706b in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007f042ad064d7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007f04543f16db in start_thread (arg=0x7f043f5ef700) at pthread_create.c:463
#6  0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f043edee700 (LWP 6198)):
#0  QMutex::lock (this=this@entry=0x55f04b8b7080) at thread/qmutex.cpp:222
#1  0x00007f04597ee4ab in QMutexLocker::QMutexLocker (m=0x55f04b8b7080, this=<synthetic pointer>) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:206
#2  QThreadData::canWaitLocked (this=0x55f04b8b7050) at ../../include/QtCore/5.12.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:269
#3  postEventSourcePrepare (timeout=<synthetic pointer>, s=0x7f042c004ba0) at kernel/qeventdispatcher_glib.cpp:259
#4  postEventSourceCheck (source=0x7f042c004ba0) at kernel/qeventdispatcher_glib.cpp:269
#5  0x00007f0452252fe1 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#6  0x00007f0452253570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#7  0x00007f04522536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f04597eddcb in QEventDispatcherGlib::processEvents (this=0x7f042c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#9  0x00007f045978f03a in QEventLoop::exec (this=this@entry=0x7f043ededda0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#10 0x00007f04595b64ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#11 0x00007f04595b7c72 in QThreadPrivate::start (arg=0x55f04b8b3690) at thread/qthread_unix.cpp:361
#12 0x00007f04543f16db in start_thread (arg=0x7f043edee700) at pthread_create.c:463
#13 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f0444fab700 (LWP 6196)):
#0  0x00007f045225053e in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f0452252a63 in g_main_context_prepare () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f04522534fb in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f04522536dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f04597eddcb in QEventDispatcherGlib::processEvents (this=0x7f0438000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:424
#5  0x00007f045978f03a in QEventLoop::exec (this=this@entry=0x7f0444faad70, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#6  0x00007f04595b64ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#7  0x00007f045aca6015 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f04595b7c72 in QThreadPrivate::start (arg=0x7f045af1dd80) at thread/qthread_unix.cpp:361
#9  0x00007f04543f16db in start_thread (arg=0x7f0444fab700) at pthread_create.c:463
#10 0x00007f045890188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f045e89b800 (LWP 6193)):
[KCrash Handler]
#6  __memmove_sse2_unaligned_erms () at ../sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S:371
#7  0x00007f045963ec29 in memcpy (__len=14156000, __src=<optimized out>, __dest=<optimized out>) at /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#8  QString::reallocData (this=0x7fff78fcdc00, alloc=<optimized out>, grow=grow@entry=false) at tools/qstring.cpp:2382
#9  0x00007f045964ee6e in QString::detach (this=this@entry=0x7fff78fcdc00) at ../../include/QtCore/../../src/corelib/tools/qstring.h:952
#10 0x00007f0459641268 in QString::replace (this=this@entry=0x7fff78fcdc00, before=before@entry=..., after=after@entry=..., cs=cs@entry=Qt::CaseSensitive) at tools/qstring.cpp:3282
#11 0x00007f045a7fb4c0 in QAbstractItemDelegatePrivate::textForRole (this=<optimized out>, role=role@entry=Qt::DisplayRole, value=..., locale=..., precision=precision@entry=6) at itemviews/qabstractitemdelegate.cpp:618
#12 0x00007f045a802c2f in QStyledItemDelegate::displayText (this=<optimized out>, value=..., locale=...) at itemviews/qstyleditemdelegate.cpp:268
#13 0x00007f045a80486e in QStyledItemDelegate::initStyleOption (this=0x55f04bb6a7e0, option=0x7fff78fcdcd0, index=...) at itemviews/qstyleditemdelegate.cpp:348
#14 0x00007f045a80395c in QStyledItemDelegate::sizeHint (this=0x55f04bb6a7e0, option=..., index=...) at itemviews/qstyleditemdelegate.cpp:410
#15 0x000055f04a0ccd24 in kt::ViewDelegate::sizeHint (this=<optimized out>, option=..., index=...) at ./ktorrent/view/viewdelegate.cpp:190
#16 0x00007f045a847f5a in QTreeView::indexRowSizeHint (this=this@entry=0x55f04bb20e30, index=...) at itemviews/qtreeview.cpp:2994
#17 0x00007f045a8488cd in QTreeViewPrivate::layout (this=this@entry=0x55f04bb20fb0, i=i@entry=-1, recursiveExpanding=recursiveExpanding@entry=false, afterIsUninitialized=afterIsUninitialized@entry=false) at itemviews/qtreeview.cpp:3328
#18 0x00007f045a85038e in QTreeView::doItemsLayout (this=0x55f04bb20e30) at itemviews/qtreeview.cpp:2114
#19 0x00007f045a84ad75 in QAbstractItemViewPrivate::executePostedLayout (this=0x55f04bb20fb0) at ../../include/QtWidgets/5.12.3/QtWidgets/private/../../../../../src/widgets/itemviews/qabstractitemview_p.h:229
#20 QTreeViewPrivate::updateScrollBars (this=0x55f04bb20fb0) at itemviews/qtreeview.cpp:3659
#21 0x00007f045a851ee8 in QTreeView::updateGeometries (this=0x55f04bb20e30) at itemviews/qtreeview.cpp:2833
#22 0x00007f045a7dfd49 in QAbstractItemView::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qabstractitemview.cpp:420
#23 0x00007f04597c0875 in QMetaObject::activate (sender=sender@entry=0x55f04bb5ef00, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x0) at kernel/qobject.cpp:3795
#24 0x00007f04597c0f47 in QMetaObject::activate (sender=sender@entry=0x55f04bb5ef00, m=m@entry=0x7f045ac7f260 <QHeaderView::staticMetaObject>, local_signal_index=local_signal_index@entry=8, argv=argv@entry=0x0) at kernel/qobject.cpp:3648
#25 0x00007f045a7eb8c3 in QHeaderView::geometriesChanged (this=this@entry=0x55f04bb5ef00) at .moc/moc_qheaderview.cpp:502
#26 0x00007f045a7f6adc in QHeaderView::viewportEvent (this=0x55f04bb5ef00, e=0x7fff78fce630) at itemviews/qheaderview.cpp:2883
#27 0x00007f0459790a9d in QCoreApplicationPrivate::sendThroughObjectEventFilters (receiver=receiver@entry=0x55f04bb5f410, event=event@entry=0x7fff78fce630) at kernel/qcoreapplication.cpp:1186
#28 0x00007f045a58c635 in QApplicationPrivate::notify_helper (this=this@entry=0x55f04b8054a0, receiver=receiver@entry=0x55f04bb5f410, e=e@entry=0x7fff78fce630) at kernel/qapplication.cpp:3728
#29 0x00007f045a593b90 in QApplication::notify (this=0x7fff78fcedb0, receiver=0x55f04bb5f410, e=0x7fff78fce630) at kernel/qapplication.cpp:3483
#30 0x00007f0459790d18 in QCoreApplication::notifyInternal2 (receiver=0x55f04bb5f410, event=0x7fff78fce630) at kernel/qcoreapplication.cpp:1060
#31 0x00007f0459790eee in QCoreApplication::sendEvent (receiver=receiver@entry=0x55f04bb5f410, event=event@entry=0x7fff78fce630) at kernel/qcoreapplication.cpp:1450
#32 0x00007f045a5c7895 in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8497
#33 0x00007f045a5c7882 in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8492
#34 0x00007f045a5c7882 in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8492
#35 0x00007f045a5c7882 in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8492
#36 0x00007f045a5c7882 in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8492
#37 0x00007f045a5c7882 in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8492
#38 0x00007f045a5c7882 in QWidgetPrivate::hideChildren (this=<optimized out>, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8492
#39 0x00007f045a5c7882 in QWidgetPrivate::hideChildren (this=this@entry=0x55f04b8b0fc0, spontaneous=spontaneous@entry=false) at kernel/qwidget.cpp:8492
#40 0x00007f045a5c7b4f in QWidgetPrivate::hide_helper (this=this@entry=0x55f04b8b0fc0) at kernel/qwidget.cpp:8217
#41 0x00007f045a5cc698 in QWidgetPrivate::setVisible (this=0x55f04b8b0fc0, visible=<optimized out>) at kernel/qwidget.cpp:8411
#42 0x00007f045a5c7e08 in QWidgetPrivate::close_helper (this=0x55f04b8b0fc0, mode=<optimized out>) at kernel/qwidget.cpp:8540
#43 0x00007f045a5c8450 in QWidget::~QWidget (this=0x7fff78fcee20, __in_chrg=<optimized out>) at kernel/qwidget.cpp:1638
#44 0x00007f045d4215cd in KMainWindow::~KMainWindow (this=0x7fff78fcee20, __in_chrg=<optimized out>) at ./src/kmainwindow.cpp:399
#45 0x000055f04a054b17 in kt::GUI::~GUI (this=0x7fff78fcee20, __in_chrg=<optimized out>, __vtt_parm=<optimized out>) at ./ktorrent/gui.cpp:128
#46 0x000055f04a044122 in main (argc=<optimized out>, argv=<optimized out>) at ./ktorrent/main.cpp:213

Reported using DrKonqi