Bug 596384 – VFS: Busy inodes after unmount issue. [rhel-5.5.z]

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Bug 596384 - VFS: Busy inodes after unmount issue. [rhel-5.5.z]

Summary:	VFS: Busy inodes after unmount issue. [rhel-5.5.z]

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Linux 5
Classification:	Red Hat
Component:	kernel (Show other bugs)
Sub Component:
Version:	5.4
Hardware:	All Linux

Priority	urgent Severity urgent
Target Milestone:	rc
Target Release:	---
Assigned To:	Jiri Pirko
QA Contact:	Red Hat Kernel QE team
Docs Contact:

URL:
Whiteboard:
Keywords:	ZStream

Depends On:	582321
Blocks:
	Show dependency tree / graph

Reported:	2010-05-26 13:14 EDT by RHEL Product and Program Management
Modified:	2015-05-04 21:20 EDT (History)
CC List:	15 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	When an NFS server exported a file system with an explicit "fsid=[file_system_ID]", an NFS client mounted that file system on one mount point and a subdirectory of that file system on a separate mount point, then if the server re-exported that file system after un-exporting and unmounting it, it was possible for the NFS client to unmount those mount points and receive the following error message: "VFS: Busy inodes after unmount..." Additionally, it was possible to crash the NFS client's kernel in this situation.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-07-01 14:28:32 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)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2010:0504	normal	SHIPPED_LIVE	Important: kernel security and bug fix update	2010-07-01 14:26:58 EDT

Groups: None (edit)

Description RHEL Product and Program Management 2010-05-26 13:14:36 EDT

This bug has been copied from bug #582321 and has been proposed
to be backported to 5.5 z-stream (EUS).

Comment 3 Jiri Pirko 2010-06-07 09:31:58 EDT

in 2.6.18-194.6.1.el5

Comment 7 Douglas Silas 2010-06-28 16:26:05 EDT

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:
When an NFS server exported a file system with an explicit "fsid=[file_system_ID]", an NFS client mounted that file system on one mount point and a subdirectory of that file system on a separate mount point, then if the server re-exported that file system after un-exporting and unmounting it, it was possible for the NFS client to unmount those mount points and receive the following error message:

    "VFS: Busy inodes after unmount..."

Additionally, it was possible to crash the NFS client's kernel in this situation.

Comment 11 errata-xmlrpc 2010-07-01 14:28:32 EDT

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-2010-0504.html

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