Bug 732437

Summary: mailx produces error msg about mailbox locking
Product: [Fedora] Fedora Reporter: Art Werschulz <agw>
Component: mailxAssignee: Peter Schiffer <pschiffe>
Status: CLOSED NEXTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: unspecified    
Version: 15CC: dmitry, marcus, pschiffe
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Mac OS   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2012-06-19 14:44:18 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Art Werschulz 2011-08-22 13:15:59 UTC 
Description of problem:
When entering "mail" at the shell's command-line prompt, I get an error msg
  Unable to lock mailbox: Input/output error
and an exit status of 1.

Version-Release number of selected component (if applicable):
mailx-12.5-3.fc15.i686

How reproducible:
Type the "mail" or "mailx" command at the shell's command-line prompt.

Steps to Reproduce:
1. Type the "mail" or "mailx" command.
2.
3.
  
Actual results:
An error msg
  Unable to lock mailbox: Input/output error
and an exit status of 1.

Expected results:
The usual list of mail msgs, or a msg "No mail for joeuser"

Additional info:
We are NFS-mounting a mail spool directory.
The problem does not occur when running the "mail" command directly on the machine containing this directory.  The problem only occurs on machines that are NFS-mounting the mail spool directory.
This problem did not occur with previous versions of Fedora; it only occurred when we upgraded from Fedora 14 to Fedora 15.
Comment 1 Marcus Hall 2011-09-25 20:55:49 UTC 
Also seeing the same issue with a fedora 15 server and client.  I no longer seem to be able to use the "nolock" option to NFS, which may be what is causing this issue??  I can specify "nolock" as an option to the mount, but it seems to not be honored, since it doesn't show up in the options running "mount" after the filesystem is mounted.
Comment 2 Peter Schiffer 2012-05-30 14:36:18 UTC 
Hello guys,

please, do you still see this issue? I've try to reproduce it, but with no luck:

$ rpm -q mailx
mailx-12.5-3.fc15.x86_64

$ mount | grep spool
10.34.4.205:/var/spool on /var/spool type nfs4 (rw,relatime,vers=4,rsize=65536,wsize=65536,namlen=255,hard,proto=tcp,port=0,timeo=600,retrans=2,sec=sys,clientaddr=10.34.4.247,minorversion=0,local_lock=none,addr=10.34.4.205)

$ mailx
No mail for joe
Comment 3 Art Werschulz 2012-06-19 14:33:32 UTC 
The problem seems to have gone away in Fedora 16.
Comment 4 Peter Schiffer 2012-06-19 14:44:18 UTC 
Thank you Art. Closing this as NEXTRELEASE.