Bug 1261185
| Summary: | Unable to connect RHEL7.2(beta) via XDMCP, getting black screen. | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | amit yadav <ayadav> | ||||||
| Component: | gnome-shell | Assignee: | Florian Müllner <fmuellner> | ||||||
| Status: | CLOSED WONTFIX | QA Contact: | Desktop QE <desktop-qa-list> | ||||||
| Severity: | high | Docs Contact: | |||||||
| Priority: | high | ||||||||
| Version: | 7.2 | CC: | mclasen, mdomonko, tpelka | ||||||
| Target Milestone: | rc | ||||||||
| Target Release: | --- | ||||||||
| Hardware: | All | ||||||||
| OS: | Linux | ||||||||
| Whiteboard: | |||||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||||
| Doc Text: | Story Points: | --- | |||||||
| Clone Of: | Environment: | ||||||||
| Last Closed: | 2015-10-06 15:33:30 UTC | Type: | Bug | ||||||
| Regression: | --- | Mount Type: | --- | ||||||
| Documentation: | --- | CRM: | |||||||
| Verified Versions: | Category: | --- | |||||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||||
| Embargoed: | |||||||||
| Attachments: |
|
||||||||
Created attachment 1071475 [details]
journalctl -b -a log file
Created attachment 1071476 [details]
/var/log/messages and /var/log/gdm file
I see Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com gnome-session[3587]: gnome-session[3587]: WARNING: App 'gnome-shell.desktop' respawning too quickly Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com gnome-session[3587]: Unrecoverable failure in required component gnome-shell.desktop Sep 09 01:15:22 dhcp234-17.gsslab.pnq.redhat.com abrt-server[3845]: Generating core_backtrace in the logs. It would be really useful to get the coredump that abrt collected there. ping. Any chance to get that coredump ? So I can't reproduce this. Neither with the 7.2 Beta nor with the latest nightly. The GDM session never crashes for me and I always get the greeter when connecting with Xephyr. With Xnest the story is a bit different as I do get the "Oh no!" screen, however it still doesn't crash. I think the reason for that is this: gdm[1335]: Xlib: extension "RANDR" missing on display "192.168.122.1:99". which is probably expected (it also happens on 7.1) and certainly not related to this bug. One thing that comes to mind is that maybe the reporter was using a headless machine and thus hit the bug 1243856 and bug 1241559. That issue is already fixed so if that was the case, we can consider this one to be fixed, too. > machine and thus hit the bug 1243856 and bug 1241559. That issue is already
s/1241559/1212702/
Thanks for the retesting, Michal. If we can't reproduce, we can't fix. Xnest is not supported. Unless this bug reproduces with Xephyr, we can close it. (In reply to Matthias Clasen from comment #10) > Xnest is not supported. Unless this bug reproduces with Xephyr, we can close > it. Nope, Xephyr is not affected. Let's close. |
Description of problem: I have configured Xdmcp on RHEL7.2 Beta. when I try to connect this system from other RHEL/fedora system using "Xnest/Xephyr/Xorg", Sometimes I am getting black screen and sometime following error: "Oh no! Something has gone wrong." and "A problem has occurred and the system can't recover. Please log out and try again." If I try to connect from Windows system using Cygwin/MobaXterm, I am getting above error. Also getting following segfault messages in journalctl output: Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com kernel: gnome-shell[3846]: segfault at 0 ip 00007fabf55956ac sp 00007ffc8f5eef50 error 4 in libmutter.so.0.0.0[7fabf5518000+ea000] Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com abrt-hook-ccpp[4018]: Not saving repeating crash in '/usr/bin/gnome-shell' Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com gnome-session[3587]: WARNING: App 'gnome-shell.desktop' respawning too quickly Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com polkitd[682]: Unregistered Authentication Agent for unix-session:c4 (system bus name :1.82, object path /org/freedesktop/PolicyKit1/Authentic Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com gnome-session[3587]: gnome-session[3587]: WARNING: App 'gnome-shell.desktop' respawning too quickly Sep 09 01:15:21 dhcp234-17.gsslab.pnq.redhat.com gnome-session[3587]: Unrecoverable failure in required component gnome-shell.desktop Sep 09 01:15:22 dhcp234-17.gsslab.pnq.redhat.com abrt-server[3845]: Generating core_backtrace Version-Release number of selected component (if applicable): gnome-shell-3.14.4-26.el7.x86_64 mutter-3.14.4-11.el7.x86_64 How reproducible: Always Steps to Reproduce: 1. Configure XDMCP on RHEL7.2 system 2. Try to connect from other RHEL/Fedora system using below command: # Xnest -query Server_ip :3 Actual results: Getting black screen or error "Oh no! Something has gone wrong." Expected results: Should get gnome desktop Additional info: Similar issue was discussed in follwing bug : https://bugzilla.redhat.com/show_bug.cgi?id=1250128