Description of problem: Just after I upgraded to Fedora 23, I tryed to open a .mid file with MuseScore. Version-Release number of selected component: mscore-2.0.1-5.fc23 Additional info: reporter: libreport-2.6.3 backtrace_rating: 4 cmdline: mscore '/home/azmeuk/ownCloud/Partitions/Buyo - Lucky Chops/Move your starlight feet on me - Starlight.mid' crash_function: QString::operator= executable: /usr/bin/mscore global_pid: 4311 kernel: 4.2.5-300.fc23.x86_64 runlevel: N 5 type: CCpp uid: 1000 Truncated backtrace: Thread no. 1 (6 frames) #0 QString::operator= at tools/qstring.cpp:1739 #1 QFont::setFamily at text/qfont.cpp:717 #2 Ms::StaffType::setDurationFontName at /usr/src/debug/MuseScore-2.0.1/libmscore/stafftype.cpp:466 #3 Ms::StaffType::StaffType at /usr/src/debug/MuseScore-2.0.1/libmscore/stafftype.cpp:78 #4 Ms::StaffType::initStaffTypes at /usr/src/debug/MuseScore-2.0.1/libmscore/stafftype.cpp:1052 #5 Ms::MScore::init at /usr/src/debug/MuseScore-2.0.1/libmscore/mscore.cpp:218
Created attachment 1090756 [details] File: backtrace
Created attachment 1090757 [details] File: cgroup
Created attachment 1090758 [details] File: core_backtrace
Created attachment 1090759 [details] File: dso_list
Created attachment 1090760 [details] File: environ
Created attachment 1090761 [details] File: exploitable
Created attachment 1090762 [details] File: limits
Created attachment 1090763 [details] File: maps
Created attachment 1090764 [details] File: mountinfo
Created attachment 1090765 [details] File: namespaces
Created attachment 1090766 [details] File: open_fds
Created attachment 1090767 [details] File: proc_pid_status
Created attachment 1090768 [details] File: var_log_messages
The segmentation fault happens, unrelated to which file is opened, it even happens when starting with new score (option -n). I tried also with options -F (use factory settings) and -R (revert to default preferences). Same thing. This is what gdb shows: $ gdb mscore -n GNU gdb (GDB) Fedora 7.10-29.fc23 Copyright (C) 2015 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-redhat-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from mscore...Reading symbols from /home/herald/mscore...(no debugging symbols found)...done. (no debugging symbols found)...done. Missing separate debuginfos, use: dnf debuginfo-install mscore-2.0.1-5.fc23.x86_64 (gdb) r Starting program: /usr/bin/mscore [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib64/libthread_db.so.1". [New Thread 0x7fffd5ee1700 (LWP 7172)] Program received signal SIGSEGV, Segmentation fault. 0x00007fffee6f770c in QString::operator=(QString const&) () from /lib64/libQt5Core.so.5 (gdb) bt #0 0x00007fffee6f770c in QString::operator=(QString const&) () at /lib64/libQt5Core.so.5 #1 0x00007fffeee239e9 in QFont::setFamily(QString const&) () at /lib64/libQt5Gui.so.5 #2 0x0000555555e633c5 in Ms::StaffType::setDurationFontName(QString const&) () #3 0x0000555555e6476e in Ms::StaffType::StaffType(Ms::StaffGroup, QString const&, QString const&, int, double, bool, bool, bool, bool, QString const&, double, double, double, QString const&, double, double, Ms::TablatureSymbolRepeat, bool, Ms::TablatureMinimStyle, bool, bool, bool, bool, bool, bool) () #4 0x0000555555e67078 in Ms::StaffType::initStaffTypes() () #5 0x0000555555eb77a2 in Ms::MScore::init() () #6 0x0000555555876bdc in main () (gdb) quit A debugging session is active. Inferior 1 [process 7168] will be killed. Quit anyway? (y or n) y
*** This bug has been marked as a duplicate of bug 1262528 ***