Bug 111768 – /proc/pid/statm can return negative values

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Bug 111768 - /proc/pid/statm can return negative values

Summary:	/proc/pid/statm can return negative values

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 2.1
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	2.1
Hardware:	i386 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Mark DeWandel
QA Contact:	Brian Brock
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2003-12-09 16:30 EST by Greg Marsden
Modified:	2007-11-30 17:06 EST (History)
CC List:	2 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2004-05-11 21:07:54 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2004:188	normal	SHIPPED_LIVE	Important: Updated kernel packages available for Red Hat Enterprise Linux 3 Update 2	2004-05-11 00:00:00 EDT

Groups: None (edit)

Description Greg Marsden 2003-12-09 16:30:18 EST

From Bugzilla Helper:
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Gecko/20031120 Firebird/0.7

Description of problem:
Linux memory value reported under /proc/ can become negative
# cat /proc/14907/statm
2116 1350 -2644 53 0 1297 539

This is most likely a result of a type discrepancy in proc/array.c
 return sprintf(buffer,"%d %d %d %d %d %d %d\n",
                        size, resident, share, trs, lrs, drs, dt);
 share = mm->mm_stat.sharable;
 int share in proc/array.c
 unsigned long in sched.h:mm_stat 



Version-Release number of selected component (if applicable):


How reproducible:
Sometimes

Steps to Reproduce:
1. Problem arises for huge shared memory values.
2.
3.
    

Additional info:

Comment 1 Greg Marsden 2003-12-09 16:32:40 EST

This problem is in AS2.1, havent tested in RHEL 3

Comment 3 John Flanagan 2004-05-11 21:07:54 EDT

An errata 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 the 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-2004-188.html

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