Bug 75683

Summary: nohide causes exportfs to produce errors
Product: [Retired] Red Hat Linux Reporter: Stephen Norris <srn>
Component: nfs-utilsAssignee: Stephen Tweedie <sct>
Status: CLOSED WORKSFORME QA Contact: Ben Levenson <benl>
Severity: high Docs Contact:
Priority: high    
Version: 7.3   
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2002-11-11 21:48:17 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Stephen Norris 2002-10-11 01:05:52 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 Galeon/1.2.6 (X11; Linux i686; U;) Gecko/20020916

Description of problem:
Given the /etc/exports:

/var/mnt	ws14.commsecure.com.au(rw,no_root_squash,nohide)
/var	ws14.commsecure.com.au(rw,no_root_squash)

(or in the other order), running exportfs -rv gives:

[root@ws12 root]# exportfs -rv
exporting ws14.commsecure.com.au:/var/mnt
exporting ws14.commsecure.com.au:/var
exporting ws14.commsecure.com.au:/var/mnt to kernel
ws14.commsecure.com.au:/var/mnt: Invalid argument
reexporting ws14.commsecure.com.au:/var to kernel

In this case /var/mnt is NFS mounted from a different server.


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


How reproducible:
Always

Steps to Reproduce:
1. Put the above in a /etc/exports
2. Run exportfs or restart the nfs service.
3. See the logs.
	

Expected Results:  The /var/mnt filesystem should be exported nohide, and thus a
client mounting /var will be able to see the re-exported /var/mount

Additional info:

This is RH7.3 with all the errata.
Comment 1 Stephen Tweedie 2002-11-11 20:29:38 UTC 
What does your /proc/mounts look like at this point?
Comment 2 Stephen Norris 2002-11-11 21:28:29 UTC 
On which machine - the client or the server?
Comment 3 Stephen Norris 2002-11-11 21:29:11 UTC 
On which machine - the client or the server?
Comment 4 Stephen Tweedie 2002-11-11 21:34:44 UTC 
The server --- that's the node which is trying to re-export an NFS mount point.
Comment 5 Stephen Norris 2002-11-11 21:48:10 UTC 
I can't seem to reproduce this here, now :(

It still doesn't work properly, but the exportfs command doesn't give errors any
more. I can't use the machine I was originally testing on to confirm, becuase
it's been upgraded to 8.0.

If you can't reproduce it either, you might just have to close it as not
reproducable...
Comment 6 Stephen Tweedie 2002-11-11 21:50:46 UTC 
OK.