Bug 690500
| Summary: | tcsh doesn't exit when child killed, consumes 100% cpu | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | Vojtech Vitek <vvitek> |
| Component: | tcsh617 | Assignee: | Vojtech Vitek <vvitek> |
| Status: | CLOSED ERRATA | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 5.0 | CC: | bnater, hripps, msvoboda, ovasik, rda, rruban |
| Target Milestone: | rc | Keywords: | Patch |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
The tcsh shell entered an infinitive loop when standard output was redirected to a child process by a pipe. When the child process was terminated, tcsh tried to print a message to the already-closed pipe as a high-priority event that could never finish. This has been fixed so in case that such child process terminates, the relevant error event is removed from the event queue before it could have been written to the broken pipe, and the parent process is terminated as well.
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Story Points: | --- |
| Clone Of: | 690356 | Environment: | |
| Last Closed: | 2011-07-21 08:49:01 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: | 690356 | ||
| Bug Blocks: | |||
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-2011-1072.html 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-2011-1072.html |
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: The tcsh shell entered an infinitive loop when standard output was redirected to a child process by a pipe. When the child process was terminated, tcsh tried to print a message to the already-closed pipe as a high-priority event that could never finish. This has been fixed so in case that such child process terminates, the relevant error event is removed from the event queue before it could have been written to the broken pipe, and the parent process is terminated as well.