Bug 1566315
| Summary: | membarrier.2: Document membarrier(2) new syscall | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Rafael Aquini <aquini> |
| Component: | man-pages-overrides | Assignee: | Nikola Forró <nforro> |
| Status: | CLOSED ERRATA | QA Contact: | Jan Houska <jhouska> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.6 | CC: | djez, nforro, smoroney, vondruch |
| Target Milestone: | rc | Keywords: | ManPageChange, Patch |
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | man-pages-overrides-7.6.0-1.el7 | Doc Type: | No Doc Update |
| Doc Text: |
undefined
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2018-10-30 11:34:51 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: | |||
| Bug Depends On: | 1560024 | ||
| Bug Blocks: | 1592880 | ||
|
Description
Rafael Aquini
2018-04-12 03:57:31 UTC
VERIFIED
NEW PASS:
man-pages-overrides-7.6.1-3.el7
"""
# man 2 membarrier
MEMBARRIER(2) Linux Programmer's Manual MEMBARRIER(2)
NAME
membarrier - issue memory barriers on a set of threads
SYNOPSIS
#include <linux/membarrier.h>
int membarrier(int cmd, int flags);
DESCRIPTION
The membarrier() system call helps reducing the overhead of the memory barrier instructions required to order memory accesses on multi-core systems. However, this system call
is heavier than a memory barrier, so using it effectively is not as simple as replacing memory barriers with this system call, but requires understanding of the details below.
...
"""
OlD FAIL:
man-pages-overrides-7.5.2-1.el7 -- on RHEL-7.5-released
No output on man 2 membarrier present.
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. https://access.redhat.com/errata/RHBA-2018:3254 |