Description of problem: clicked on a MTD device (nexus 5x) in the device pane on the left Version-Release number of selected component: pcmanfm-qt-0.11.3-3.fc25 Additional info: reporter: libreport-2.8.0 backtrace_rating: 4 cmdline: pcmanfm-qt crash_function: QAbstractItemViewPrivate::viewOptionsV1 executable: /usr/bin/pcmanfm-qt global_pid: 5362 kernel: 4.9.12-200.fc25.x86_64 pkg_fingerprint: 4089 D8F2 FDB1 9C98 pkg_vendor: Fedora Project runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (10 frames) #0 QAbstractItemViewPrivate::viewOptionsV1 at itemviews/qabstractitemview.cpp:3725 #1 QAbstractItemView::mouseReleaseEvent at itemviews/qabstractitemview.cpp:1923 #2 QTreeView::mouseReleaseEvent at itemviews/qtreeview.cpp:1910 #3 QWidget::event at kernel/qwidget.cpp:9161 #4 QFrame::event at widgets/qframe.cpp:550 #5 QAbstractItemView::viewportEvent at itemviews/qabstractitemview.cpp:1747 #6 QTreeView::viewportEvent at itemviews/qtreeview.cpp:1320 #7 QCoreApplicationPrivate::sendThroughObjectEventFilters at kernel/qcoreapplication.cpp:1099 #8 QApplicationPrivate::notify_helper at kernel/qapplication.cpp:3795 #9 QApplication::notify at kernel/qapplication.cpp:3273
Created attachment 1260164 [details] File: backtrace
Created attachment 1260165 [details] File: cgroup
Created attachment 1260166 [details] File: core_backtrace
Created attachment 1260167 [details] File: dso_list
Created attachment 1260168 [details] File: environ
Created attachment 1260169 [details] File: exploitable
Created attachment 1260170 [details] File: limits
Created attachment 1260171 [details] File: maps
Created attachment 1260172 [details] File: mountinfo
Created attachment 1260173 [details] File: namespaces
Created attachment 1260174 [details] File: open_fds
Created attachment 1260175 [details] File: proc_pid_status
Created attachment 1260176 [details] File: var_log_messages
It's a known issue about b0rken MTD implementations. Though backtrace indicates a bug in Qt, reassigning.
i cannot reproduce this issue in latest f25/f26 release. Please update your system to latest and feel free to reopen if you still can reproduce it. Thanks