Bug 69159 – System freezes while operating on NFS mounted mmap:ed file

Bug 69159 - System freezes while operating on NFS mounted mmap:ed file

Summary:	System freezes while operating on NFS mounted mmap:ed file

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	kernel (Show other bugs)
Sub Component:
Version:	7.2
Hardware:	All Linux

Priority	medium Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Arjan van de Ven
QA Contact:	Brian Brock
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2002-07-18 11:29 EDT by David Juran
Modified:	2007-04-18 12:44 EDT (History)
CC List:	1 user (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2002-07-18 11:31:34 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Program that causes the crash (611 bytes, text/plain) 2002-07-18 11:31 EDT, David Juran	no flags	Details
Add an attachment (proposed patch, testcase, etc.)

Groups: None (edit)

Description David Juran 2002-07-18 11:29:44 EDT

From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020513

Description of problem:
We have a small testcase where we do several consecutive mmap:s and remove:s on
an NFS-mounted file. This causes the system to become unresponsive. It does
answer to ping, but nothing else works and it has to be rebooted.

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


How reproducible:
Always

Steps to Reproduce:
1. g++ -s -O3 -Wall tt.cc -o tt
2. move to an NFS-mounted directory
3. run tt

Additional info:

You might have to run tt several times to cause the freeze. Probably depending
on the load of the network. You might have to adjust the filesize in order to
reproduce the error.

Comment 1 David Juran 2002-07-18 11:31:29 EDT

Created attachment 65804 [details]
Program that causes the crash

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