Bug 690270
| Summary: | Xserver segfaults in miwindow.c when backing store is enabled | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | RHEL Program Management <pm-rhel> |
| Component: | xorg-x11-server | Assignee: | Adam Jackson <ajax> |
| Status: | CLOSED ERRATA | QA Contact: | desktop-bugs <desktop-bugs> |
| Severity: | urgent | Docs Contact: | |
| Priority: | urgent | ||
| Version: | 5.6 | CC: | ajax, cww, ofourdan, plyons, pm-eus, vbenes, vsharapo |
| Target Milestone: | rc | Keywords: | Patch, Triaged, ZStream |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
Prior to this update, running the X.Org server with the support for backing store enabled (the "backingstore" option) caused the server to occasionally terminate with a segmentation fault. With this update, the underlying source code has been modified to address this issue, and enabling the "backingstore" option in the server's configuration no longer leads to unexpected crashes.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-04-20 06:57:06 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: | 676270 | ||
| Bug Blocks: | |||
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Description
RHEL Program Management
2011-03-23 18:29:41 UTC
3210529 build (RHEL-5.6-Z-candidate, /cvs/dist:rpms/xorg-x11-server/RHEL-5:xorg-x11-server-1_1_1-48_76_el5_6_3) completed successfully MODIFIED I'm unable to verify the existence of the bug. I tried to exercise the backingstore by running firefox windows and glxgears with other windows moving and resizing over them. Backingstore was enabled the whole time but there was no occurrence of the crash after over 24 hours, there were approximately 2,592,000 runs through the codepath that has the race condition in it. I can make a more intense test if necessary, but it looks like the customer is doing something we're not. If someone comes up with a reliable reproducer, I can verify the bug, until then I can only test for regressions. =\ So this bug is staying ON_QA until something changes.
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New Contents:
Prior to this update, running the X.Org server with the support for backing store enabled (the "backingstore" option) caused the server to occasionally terminate with a segmentation fault. With this update, the underlying source code has been modified to address this issue, and enabling the "backingstore" option in the server's configuration no longer leads to unexpected crashes.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2011-0456.html |