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Bug 122505 (IT_37052)

Summary: [IA64] umount succeeds on busy NFS mounts
Product: Red Hat Enterprise Linux 2.1 Reporter: Don Howard <dhoward>
Component: kernelAssignee: Jason Baron <jbaron>
Status: CLOSED DUPLICATE QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 2.1CC: knoel, riel, tao
Target Milestone: ---   
Target Release: ---   
Hardware: ia64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2006-02-21 19:03:00 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:
Bug Depends On:    
Bug Blocks: 116726    

Description Don Howard 2004-05-05 10:20:53 UTC
[IA64] umount succeeds on busy NFS mounts 
 
mount-2.11g-6 
 
Linux version 2.4.18-e.43 (bhcompile.redhat.com) 
(gcc version 2.96 20000731 (Red Hat Linux 7.2 2.96-124.7.2))  
#1 Thu Apr 8 15:45:28 EDT 2004 
 
 
How reproducible: 
  Always 
 
Steps to Reproduce: 
  1. mount a volume via NFS 
     # mount server:/remotedir /localdir 
 
  2. cd to the volume and umount the mounted directory 
     # cd /localdir 
     # umount /localdir 
 
Actual results: 
  The volume is unmounted successfully 
 
Expected results: 
  Unmount operation is rejected

Comment 1 Don Howard 2004-05-05 10:24:53 UTC
$ strace umount /home 
... 
close(3) = 0 
umount("/home", 0) = 0 
lstat("/etc/mtab", {st_mode=S_IFREG|0644, st_size=244, ...}) = 0 
open("/etc/mtab", O_RDWR|O_CREAT, 0644) = 3 
...  
 
 
On i386 I see this: 
... 
close(3)                                = 0 
oldumount("/home")                      = -1 EBUSY (Device or 
resource busy) 
lstat64("/etc/mtab", {st_mode=S_IFREG|0644, st_size=235, ...}) = 0 
open("/etc/mtab", O_RDWR|O_CREAT|O_LARGEFILE, 0644) = 3 
... 

Comment 2 Don Howard 2004-05-05 10:27:32 UTC
May be related to  
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=120907 

Comment 3 Fuchi Hideshi 2004-05-26 06:57:19 UTC
Hi Don-san, 

I think so. and I tested glibc-2.2.4-32.16 in people.redhat.com.
That glibc works fine.

Thanks,
Fuchi

Comment 6 Jason Baron 2004-05-28 17:55:30 UTC

*** This bug has been marked as a duplicate of 120907 ***

Comment 9 Red Hat Bugzilla 2006-02-21 19:03:00 UTC
Changed to 'CLOSED' state since 'RESOLVED' has been deprecated.