Description of problem: I've tried to create QML application in qt-creator using following example: http://doc.qt.io/qt-5/qml-qtwebkit-webview.html The application crashed instantly when running it. Version-Release number of selected component: qt5-qtwebkit-5.4.1-4.fc20 Additional info: reporter: libreport-2.2.3 backtrace_rating: 4 cmdline: /usr/lib64/qt5/libexec/QtWebPluginProcess -scanPlugin /usr/lib64/mozilla/plugins/skypebuttons.so crash_function: ref executable: /usr/lib64/qt5/libexec/QtWebPluginProcess kernel: 3.19.5-100.fc20.x86_64 runlevel: N 5 type: CCpp uid: 14741 var_log_messages: [System Logs]:\n-- Logs begin at Wed 2013-11-27 08:24:10 CET, end at Fri 2015-05-22 11:55:42 CEST. -- Truncated backtrace: Thread no. 1 (10 frames) #0 ref at ../../src/corelib/arch/qatomic_x86_64.h:121 #1 QList at ../../src/corelib/tools/qlist.h:121 #2 QPrinterInfoPrivate at painting/qprinterinfo_p.h:71 #3 __static_initialization_and_destruction_0 at painting/qprinterinfo.cpp:35 #4 _GLOBAL__sub_I_qprinterinfo.cpp(void) at painting/qprinterinfo.cpp:163 #5 call_init at dl-init.c:82 #7 _dl_init at dl-init.c:130 #8 dl_open_worker at dl-open.c:566 #9 _dl_catch_error at dl-error.c:177 #10 _dl_open at dl-open.c:650
Created attachment 1028668 [details] File: backtrace
Created attachment 1028669 [details] File: cgroup
Created attachment 1028670 [details] File: core_backtrace
Created attachment 1028671 [details] File: dso_list
Created attachment 1028672 [details] File: environ
Created attachment 1028673 [details] File: exploitable
Created attachment 1028674 [details] File: limits
Created attachment 1028675 [details] File: maps
Created attachment 1028676 [details] File: open_fds
Created attachment 1028677 [details] File: proc_pid_status
Backtraces that involve #4 _GLOBAL__sub_I_qprinterinfo.cpp(void) at painting/qprinterinfo.cpp:163 usually indicate a process that is mixing qt4/qt5 in the same space. Seems the crash happened after trying to load plugin: #10 0x00007f3ce0ee506b in _dl_open (file=0x7f3ce2ab9e08 "/usr/lib64/mozilla/plugins/skypebuttons.so", mode=-2147483646, caller_dlopen=<optimized out>, nsid=-2, argc=3, argv=0x7ffeca17a608, env=0x7ffeca17a628) at dl-open.c:650
I wonder if we'll have to consider some sort of known-qt4-based browser plugin blacklist to avoid this.
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