Bug 1655998

Summary: [abrt] xorg-x11-server-Xwayland: OsLookupColor(): Segmentation fault at address 0x0
Product: [Fedora] Fedora Reporter: Jesper Skov <jskov>
Component: xorg-x11-serverAssignee: X/OpenGL Maintenance List <xgl-maint>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 29CC: bskeggs, caillon+fedoraproject, jglisse, john.j5live, ofourdan, rhughes, rstrode, sandmann, xgl-maint
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
Whiteboard: abrt_hash:e354ebcabbb487ceb4d4c26fe1337155231f9182;VARIANT_ID=workstation;
Fixed In Version: xorg-x11-server-1.20.3-2.fc29 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-12-19 02:28:13 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:
Attachments:
Description Flags
File: backtrace
none
File: cpuinfo
none
File: dmesg
none
File: dso_list
none
File: etc_X11_xorg_conf_d.tar.gz
none
File: usr_share_xorg_conf_d.tar.gz none

Description Jesper Skov 2018-12-04 12:02:32 UTC 
Description of problem:
The problem is triggered (sometimes) when I use an external (DisplayPort) KVM-switch.

The crash appears (I think) more frequently, if I switch when the display is on.
I have taken to locking the screen before I switch over, as this appears to reduce the problem frequency.

I experienced the crash (same symptoms, anyway) a few time with F28. 
After upgrading to F29 it happens daily.

Version-Release number of selected component:
xorg-x11-server-Xwayland-1.20.3-1.fc29

Additional info:
reporter:       libreport-2.9.6
crash_function: OsLookupColor
executable:     /usr/bin/Xwayland
kernel:         4.19.5-300.fc29.x86_64
runlevel:       N 5
type:           xorg
uid:            0

Truncated backtrace:
0: /usr/bin/Xwayland (OsLookupColor+0x13d) [0x5598d52121ed]
1: /lib64/libpthread.so.0 (funlockfile+0x50) [0x7fdad26120bf]
2: /usr/bin/Xwayland (present_wnmd_event_notify+0x3e1) [0x5598d517a341]
3: /usr/bin/Xwayland (present_can_window_flip+0xb9e) [0x5598d517b87e]
4: /usr/bin/Xwayland (SendErrorToClient+0x35e) [0x5598d51dc21e]
5: /usr/bin/Xwayland (InitFonts+0x3c6) [0x5598d51e0246]
6: /lib64/libc.so.6 (__libc_start_main+0xf3) [0x7fdad245d413]
7: /usr/bin/Xwayland (_start+0x2e) [0x5598d50ae35e]
Comment 1 Jesper Skov 2018-12-04 12:02:36 UTC 
Created attachment 1511273 [details]
File: backtrace
Comment 2 Jesper Skov 2018-12-04 12:02:38 UTC 
Created attachment 1511274 [details]
File: cpuinfo
Comment 3 Jesper Skov 2018-12-04 12:02:42 UTC 
Created attachment 1511275 [details]
File: dmesg
Comment 4 Jesper Skov 2018-12-04 12:02:44 UTC 
Created attachment 1511276 [details]
File: dso_list
Comment 5 Jesper Skov 2018-12-04 12:02:46 UTC 
Created attachment 1511277 [details]
File: etc_X11_xorg_conf_d.tar.gz
Comment 6 Jesper Skov 2018-12-04 12:02:47 UTC 
Created attachment 1511278 [details]
File: usr_share_xorg_conf_d.tar.gz
Comment 7 Fedora Update System 2018-12-18 02:12:07 UTC 
xorg-x11-server-1.20.3-2.fc29 has been pushed to the Fedora 29 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-2018-e3ade0ccc7
Comment 8 Fedora Update System 2018-12-19 02:28:13 UTC 
xorg-x11-server-1.20.3-2.fc29 has been pushed to the Fedora 29 stable repository. If problems still persist, please make note of it in this bug report.