Bug 1058423
| Summary: | Xorg crashes after upgrade of tigervnc-server-module | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | Libor Miksik <lmiksik> |
| Component: | tigervnc | Assignee: | Tim Waugh <twaugh> |
| Status: | CLOSED ERRATA | QA Contact: | qe-baseos-daemons |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.5 | CC: | alanm, amahdal, ashishks, azelinka, jfenal, jsvarova, mdomonko, pm-eus, twaugh |
| Target Milestone: | rc | Keywords: | Patch, Regression, ZStream |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | tigervnc-1.1.0-8.el6_5 | Doc Type: | Bug Fix |
| Doc Text: |
When using TigerVNC as a loadable X module, initialisation of the GLX extension was not performed correctly. This could lead to the X server crashing. A fix from a later version of tigervnc has been backported, and the GLX extension is now initialised correctly.
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-02-03 11:18:38 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: | 1044244 | ||
| Bug Blocks: | |||
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Description
Libor Miksik
2014-01-27 18:28:42 UTC
Reproducer used for Erratum 2014:16812:
~
1. Install 2 RHEL7 machines (A and B) with basic desktop
(I used Server editions + Desktop option in Anaconda)
and at least one non-root user (Admin in my case)
2. A: change LAYOUT in /etc/sysconfig/keyboard to "es"
3. A: install tigervnc-server-module
4. A: create the .conf files stated below (10-module.conf,
30-screen.conf).
5. A: restart gdm, e.g.: `init 3; sleep 5; init 5;`
6. A: disable firewall (or set rule to allow incoming tcp5900)
7. B: install tigervnc (viewer)
8. B: switch default keyboard layout to Spanish
(System > Preferences > Keyboard ...)
9. B: connect to B using tigervnc
> you should see GDM greeter in the VNC desktop
10. B: Close the tigervnc window
> if X server crashes on A, you have reproduced the bug
(check mail for abrt reports)
~
/etc/X11/xorg.conf.d/10-module.conf:
Section "Module"
Load "vnc"
EndSection
/etc/X11/xorg.conf.d/30-screen.conf:
Section "Screen"
Identifier "Screen0"
DefaultDepth 24
Subsection "Display"
Viewport 0 0
Depth 24
Modes "1024x768"
EndSubsection
Option "SecurityTypes" "None"
EndSection
~
Notes:
* To check the same with new packages, you only need to update on A
and restart the GDM (init...). Old vncviewer is not affected by this
bug at all.
In fact, you could possibly use any other viewer on any other desktop
as long as you are able to reproduce the bug with the old server
module. (AFAIK even the orignal report does not state what exactly
they used). OTOH, above combination is as close to "officially
supported" as it gets.
* Also, I was not able to get the VNC server module working on several
Beaker machines, even one with real graphics card. So I finally
tested this in local KVM instance. If you know how to make it work
in Beaker, please update the reproducer.
Minor fixes to the reproducer: (In reply to Alois Mahdal from comment #5) > 1. Install 2 RHEL7 machines (A and B) I mean RHEL6. > 2. A: change LAYOUT in /etc/sysconfig/keyboard to "es" > [...] > 8. B: switch default keyboard layout to Spanish > (System > Preferences > Keyboard ...) Please ignore these steps (c/p error). Layouts are irrelevant here. verified on x86_64 and i386 Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2014-0125.html |