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Bug 501800

Summary:	[RHEL4] Nscd consumes many cpu resources ( nearly 100% ) continuously.
Product:	Red Hat Enterprise Linux 4	Reporter:	Benjamin Kahn <bkahn>
Component:	kernel	Assignee:	Vitaly Mayatskikh <vmayatsk>
Status:	CLOSED ERRATA	QA Contact:	Red Hat Kernel QE team <kernel-qe>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	4.5	CC:	alanm, cward, dhoward, djuran, drepper, fhirtz, jakub, james-p, jskrabal, k.georgiou, ofourdan, pm-eus, sghosh, sputhenp, syeghiay, tao
Target Milestone:	rc	Keywords:	Regression, ZStream
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:	Off-by-one errors in the time normalization code could have caused clock_gettime() to return one billion nanoseconds, rather than adding an extra second. This bug could have caused the name service cache daemon (nscd) to consume excessive CPU resources.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2009-06-30 08:06:36 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:	496201
Bug Blocks:

Description Benjamin Kahn 2009-05-20 18:56:56 UTC

This bug has been copied from bug #496201 and has been proposed
to be backported to 4.8 z-stream (EUS).

Comment 4 Vitaly Mayatskikh 2009-05-21 16:42:55 UTC

Committed in 89.0.1.EL

Comment 8 errata-xmlrpc 2009-06-30 08:06:36 UTC

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-2009-1132.html

Comment 10 Douglas Silas 2011-01-30 23:40:34 UTC

    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:
Off-by-one errors in the time normalization code could have caused clock_gettime() to return one billion nanoseconds, rather than adding an extra second. This bug could have caused the name service cache daemon (nscd) to consume excessive CPU resources.