Bug 1566372

Summary:	nfs mount is failing and not able to list files on mounted folder if mounted successfully.
Product:	Red Hat Enterprise Linux 6	Reporter:	Lakshmi Narayanan G <lakshminarayananece>
Component:	nfs-utils	Assignee:	Steve Dickson <steved>
Status:	CLOSED WONTFIX	QA Contact:	Yongcheng Yang <yoyang>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	6.7	CC:	jiyin, lakshminarayananece, toneata, xzhou, yoyang
Target Milestone:	rc
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-07-03 12:26:24 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:
Embargoed:

Description Lakshmi Narayanan G 2018-04-12 07:53:18 UTC

What problem/issue/behavior are you having trouble with? What do you expect to see?

When I am trying to mount nfs, we are getting error as follows. Even then when I execute "mount" command and check the results folders are mounted properlyand we able to "cd" to that folder. After that if I execute "ls" command its hanging there no output at all.Please find dattached dmesg and error details.

mount: UUID=9487e877-8709-4379-bfee-9db8dc83fa5e already mounted on /boot
mount: /dev/mapper/VolGroup-lv_home already mounted on /home
mount: tmpfs already mounted on /dev/shm
mount: devpts already mounted on /dev/pts
mount: sysfs already mounted on /sys
mount: proc already mounted on /proc
mount.nfs: timeout set for Wed Apr 4 09:42:27 2018
mount.nfs: trying text-based options 'nointr,tcp,timeo=500,rsize=32768,wsize=32768,actimeo=0,vers=4,addr=156.145.146.112,clientaddr=156.145.146.100'
mount.nfs: mount(2): Operation not permitted
mount.nfs: trying text-based options 'nointr,tcp,timeo=500,rsize=32768,wsize=32768,actimeo=0,addr=156.145.146.112'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 156.145.146.112 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=6
mount.nfs: trying 156.145.146.112 prog 100005 vers 3 prot TCP port 600

Where are you experiencing the behavior? What environment?

HP Prolient Gen 6 blade with RHEL 6.7 32 bit

When does the behavior occur? Frequently? Repeatedly? At certain times?

Frequently

What information can you provide around timeframes and the business impact?

Its a production issue.

Comment 2 Steve Dickson 2018-04-12 12:40:39 UTC

Please record a wire trace of the network traffic
between the client and server. 

tshark -w /tmp/data.pcap host <server> 
bzip /tmp/data.pcap

Comment 3 Lakshmi Narayanan G 2018-04-13 09:28:07 UTC

Thanks! Steve... when I tried this cmd in my local machine under root....Observing the error "Running as root & group is root". This could be dangerous.

Please comment on this, why bcoz since its customer issue, there may be chance to raise a Flag to fix this part "This could be dangerous".

Or 

This has to execute from the normal user[Test user]? I don't think customer have test user..., but I am asking here.