Bug 1294686

Summary:	mount is done via UDP but unmount is done via TCP
Product:	Red Hat Enterprise Linux 5	Reporter:	noah davids <ndavids>
Component:	nfs-utils	Assignee:	Steve Dickson <steved>
Status:	CLOSED WONTFIX	QA Contact:	Filesystem QE <fs-qe>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	5.11	CC:	steved
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-04-18 22:00:03 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:

Description noah davids 2015-12-29 17:05:32 UTC

Description of problem:

Mount is done via UDP but unmount is done via TCP. This fails if a firewall blocks the TCP connection

Version-Release number of selected component (if applicable):
nfs-utils-1.0.9-71.el5


How reproducible:
100%

Steps to Reproduce:
1. mount a remote file system via NFS
2. unmount the remote file system
3.

Actual results:
umount will hang if there is a firewall blocking the TCP connection

Expected results:
umount should use the same transport protocol as the mount

Additional info:
This looks like Bug 513466 - Failure to Unmount UDP NFS Filesystems but that is reported as fixed in nfs-utils-1.0.9-52.el5

Comment 1 RHEL Program Management 2016-01-01 17:22:41 UTC

This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Comment 2 Chris Williams 2017-04-18 22:00:03 UTC

Red Hat Enterprise Linux 5 shipped it's last minor release, 5.11, on September 14th, 2014. On March 31st, 2017 RHEL 5 exited Production Phase 3 and entered Extended Life Phase. For RHEL releases in the Extended Life Phase, Red Hat  will provide limited ongoing technical support. No bug fixes, security fixes, hardware enablement or root-cause analysis will be available during this phase, and support will be provided on existing installations only.  If the customer purchases the Extended Life-cycle Support (ELS), certain critical-impact security fixes and selected urgent priority bug fixes for the last minor release will be provided.  For more details please consult the Red Hat Enterprise Linux Life Cycle Page:
https://access.redhat.com/support/policy/updates/errata

This BZ does not appear to meet ELS criteria so is being closed WONTFIX. If this BZ is critical for your environment and you have an Extended Life-cycle Support Add-on entitlement, please open a case in the Red Hat Customer Portal, https://access.redhat.com ,provide a thorough business justification and ask that the BZ be re-opened for consideration of an errata. Please note, only certain critical-impact security fixes and selected urgent priority bug fixes for the last minor release can be considered.