Description of problem: Started Fedora Media Writer Selected Workstation Selected Create Live USB Crash! Version-Release number of selected component: mediawriter-3.97.1-0.fc24 Additional info: reporter: libreport-2.7.2 backtrace_rating: 4 cmdline: mediawriter crash_function: pushbuf_kref executable: /usr/bin/mediawriter global_pid: 3282 kernel: 4.8.4-200.fc24.x86_64 pkg_fingerprint: 73BD E983 81B4 6521 pkg_vendor: Fedora Project runlevel: N 5 type: CCpp uid: 0 Truncated backtrace: Thread no. 1 (10 frames) #0 pushbuf_kref at pushbuf.c:165 #1 pushbuf_validate at pushbuf.c:506 #2 nouveau_pushbuf_validate at pushbuf.c:753 #3 nv50_state_validate at nv50/nv50_state_validate.c:554 #4 nv50_state_validate_3d at nv50/nv50_state_validate.c:564 #5 nv50_draw_vbo at nv50/nv50_vbo.c:793 #6 st_draw_vbo at state_tracker/st_draw.c:251 #7 vbo_validated_drawrangeelements at vbo/vbo_exec_array.c:850 #8 vbo_exec_DrawElements at vbo/vbo_exec_array.c:986 #9 QOpenGLFunctions::glDrawElements at /usr/include/qt5/QtGui/qopenglfunctions.h:728
Created attachment 1216660 [details] File: backtrace
Created attachment 1216661 [details] File: cgroup
Created attachment 1216662 [details] File: core_backtrace
Created attachment 1216663 [details] File: dso_list
Created attachment 1216664 [details] File: environ
Created attachment 1216665 [details] File: exploitable
Created attachment 1216666 [details] File: limits
Created attachment 1216667 [details] File: maps
Created attachment 1216668 [details] File: mountinfo
Created attachment 1216669 [details] File: namespaces
Created attachment 1216670 [details] File: open_fds
Created attachment 1216671 [details] File: proc_pid_status
Created attachment 1216672 [details] File: var_log_messages
Thank you for this report. Seems there's a problem with QML rendering in two windows at a time. I'll have to move the dialogs inside the main window and remove the forced QSG loop model.
Proposed as a Freeze Exception for 25-final by Fedora user mbriza using the blocker tracking app because: This bug affects FMW users with nouveau graphics cards. Due to a workaround for performance issues, a different thread model for QML rendering was forced, resulting in instability on some hardware. Now there's another solution in place (using a single window instead of a window with multiple dialogs) that provides solution to the stability problem and it doesn't come with a performance hit.
Discussed during the 2016-11-07 blocker review meeting: [1] The decision was made to classify this bug as an AcceptedFreezeException. [1] https://meetbot.fedoraproject.org/fedora-blocker-review/2016-11-07/f25-blocker-review.2016-11-07-17.01.txt
mediawriter-4.0.4-0.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2016-239cdfbfd6
mediawriter-4.0.4-0.fc25 has been pushed to the Fedora 25 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-239cdfbfd6
mediawriter-4.0.4-0.fc25 has been pushed to the Fedora 25 stable repository. If problems still persist, please make note of it in this bug report.