Bug 667050
| Summary: | COW corruption using popen(3). [rhel-5.6.z] | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 5 | Reporter: | RHEL Program Management <pm-rhel> |
| Component: | kernel | Assignee: | Jiri Pirko <jpirko> |
| Status: | CLOSED ERRATA | QA Contact: | Red Hat Kernel QE team <kernel-qe> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 5.6 | CC: | coughlan, dhoward, eguan, jburke, jlieskov, jpirko, jthomas, jwest, kzhang, lwoodman, pm-eus, rkhan, syeghiay, wmealing |
| Target Milestone: | rc | Keywords: | ZStream |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-2.6.18-238.1.1.el5 | Doc Type: | Bug Fix |
| Doc Text: |
Prior to this update, a multi-threaded application, which invoked popen(3) internally, could cause a thread stall by FILE lock corruption. The application program waited for a FILE lock in glibc, but the lock seemed to be corrupted, which was caused by a race condition in the COW (Copy On Write) logic. With this update, the race condition was corrected and FILE lock corruption no longer occurs.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-01-18 18:22:24 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: | 664931 | ||
| Bug Blocks: | |||
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Description
RHEL Program Management
2011-01-04 08:28:44 UTC
in kernel-2.6.18-238.1.1.el5 linux-2.6-mm-prevent-file-lock-corruption-using-popen-3.patch Guan, how does it look? Anyway, Larry told me that the other test may not reveal the problem... Flipping back to ON_QA 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/RHSA-2011-0163.html
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New Contents:
Prior to this update, a multi-threaded application, which invoked popen(3) internally, could cause a thread stall by FILE lock corruption. The application program waited for a FILE lock in glibc, but the lock seemed to be corrupted, which was caused by a race condition in the COW (Copy On Write) logic. With this update, the race condition was corrected and FILE lock corruption no longer occurs.
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