Bug 1391183

Summary: [abrt] mediawriter: pushbuf_kref(): mediawriter killed by SIGSEGV
Product: [Fedora] Fedora Reporter: joel
Component: mediawriterAssignee: Martin Bříza <mbriza>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 24CC: gmarr, mbriza
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/98c214955dfb06d53dcf49becb0f63ad51385dc5
Whiteboard: abrt_hash:5fa525d427f511d77a0fd3c275e19f7ebe8bde00;VARIANT_ID=workstation; AcceptedFreezeException
Fixed In Version: mediawriter-4.0.4-0.fc25 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2016-11-15 13:33:59 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1277290    
Attachments:
Description Flags
File: backtrace
none
File: cgroup
none
File: core_backtrace
none
File: dso_list
none
File: environ
none
File: exploitable
none
File: limits
none
File: maps
none
File: mountinfo
none
File: namespaces
none
File: open_fds
none
File: proc_pid_status
none
File: var_log_messages none

Description joel 2016-11-02 17:49:32 UTC 
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
Comment 1 joel 2016-11-02 17:49:36 UTC 
Created attachment 1216660 [details]
File: backtrace
Comment 2 joel 2016-11-02 17:49:36 UTC 
Created attachment 1216661 [details]
File: cgroup
Comment 3 joel 2016-11-02 17:49:37 UTC 
Created attachment 1216662 [details]
File: core_backtrace
Comment 4 joel 2016-11-02 17:49:38 UTC 
Created attachment 1216663 [details]
File: dso_list
Comment 5 joel 2016-11-02 17:49:39 UTC 
Created attachment 1216664 [details]
File: environ
Comment 6 joel 2016-11-02 17:49:40 UTC 
Created attachment 1216665 [details]
File: exploitable
Comment 7 joel 2016-11-02 17:49:41 UTC 
Created attachment 1216666 [details]
File: limits
Comment 8 joel 2016-11-02 17:49:42 UTC 
Created attachment 1216667 [details]
File: maps
Comment 9 joel 2016-11-02 17:49:44 UTC 
Created attachment 1216668 [details]
File: mountinfo
Comment 10 joel 2016-11-02 17:49:45 UTC 
Created attachment 1216669 [details]
File: namespaces
Comment 11 joel 2016-11-02 17:49:49 UTC 
Created attachment 1216670 [details]
File: open_fds
Comment 12 joel 2016-11-02 17:49:49 UTC 
Created attachment 1216671 [details]
File: proc_pid_status
Comment 13 joel 2016-11-02 17:49:50 UTC 
Created attachment 1216672 [details]
File: var_log_messages
Comment 14 Martin Bříza 2016-11-03 15:41:28 UTC 
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.
Comment 15 Fedora Blocker Bugs Application 2016-11-03 17:20:35 UTC 
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.
Comment 16 Geoffrey Marr 2016-11-08 01:04:14 UTC 
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
Comment 17 Fedora Update System 2016-11-11 08:09:20 UTC 
mediawriter-4.0.4-0.fc25 has been submitted as an update to Fedora 25. https://bodhi.fedoraproject.org/updates/FEDORA-2016-239cdfbfd6
Comment 18 Fedora Update System 2016-11-11 16:57:58 UTC 
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
Comment 19 Fedora Update System 2016-11-15 13:33:59 UTC 
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.