Bug 1110624
| Summary: | RHEL7 displays only one nfs mount in df output which are exported with "rw,nohide,crossmnt" | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Jayashree <jayashree_doijad> |
| Component: | coreutils | Assignee: | Ondrej Vasik <ovasik> |
| Status: | CLOSED DUPLICATE | QA Contact: | qe-baseos-daemons |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.0 | CC: | cerninr, pbrady |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-11-05 16:23:18 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: | |||
I can confirm the same, on RedHat Enterprise Linux 6.5. exported 2 Filesystems *(rw,sync,no_root_squash) and mount on RHEL-7 and only first mounted visible in the df -k output. I would like to redirect this to the coreutils... I can reproduce
this problem creating to exports on the same file system on the server
nfsserver# cat /etc/exports
#/home *(rw,crossmnt,sec=sys:krb5:krb5i:krb5p)
/home *(rw,nohide,crossmnt)
/home/tmp *(rw,nohide,crossmnt)
nfsclient#mount simhat:/home /mnt/home
nfsclient#mount simhat:/home/tmp /mnt/home/tmp
df -k just shows the first mount
nfsserver:/home 20G 5.1G 14G 28% /mnt/home
Both filesystems are in /proc/mounts and when I
strace the df command (strace df -k) it does how
the two file system getting stat()-ed
stat("/mnt/home", {st_mode=S_IFDIR|0755, st_size=4096, ...}) = 0
stat("/mnt/home/tmp", {st_mode=S_IFDIR|0777, st_size=4096, ...}) = 0
So the df command does see them but its just not displaying them
I would rather let coreutils people debug why df is not
displaying the filesystem (since they know the command better).
If it does turns out to be a NFS issue, just reassign this
back to nfs-utils...
*** This bug has been marked as a duplicate of bug 1100026 *** |
Description of problem: nfs mount points exported with options "rw,nohide,crossmnt" on nfs server and mounted on RHEL7 machine , displays only one mount in "df -k" output and displays all mount points mounted from nfs server in mount output . If we export without "nohide,crossmnt" from nfs server, we are able to see mount pounts in both mount and df output. Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1.on nfs server(rhel56) exportfs with options as "rw,nohide,crossmnt" e.g: cat /etc/exports /opt/VRTSsfaetest/autosetup *(rw,nohide,crossmnt) /opt/VRTSsfaetest/core/utilities/config *(rw,nohide,crossmnt) /opt/VRTSsfaetest/core/utilities/scripts *(rw,nohide,crossmnt) /sfaetest/scratch *(rw,nohide,crossmnt) /dbdumps *(ro,nohide,crossmnt) /dbdumps1 *(rw,nohide,crossmnt) cat /etc/issue Red Hat Enterprise Linux Server release 5.6 (Tikanga) Kernel \r on an \m 2.Now try to mount these nfs on rhel7 machine. mount -t nfs nfsserver:/opt/VRTSsfaetest/autosetup /mnt1 mount -t nfs nfsserver:/opt/VRTSsfaetest/core/utilities/config /sfaetest/config 3.Try df command It shows only one nfs mount in df -k output , though other nfs actually mounted which displays in mount command . [root@dblxx64-12-v4 ~]# df -k Filesystem 1K-blocks Used Available Use% Mounted on nfsserver:/opt/VRTSsfaetest/core/utilities/config 152516576 123273088 21370976 86% /sfaetest/config punevault:/re 2149580800 649391104 1488517120 31% /net/re punevault:/re/release_train 2097152000 1254829056 835997696 61% /net/re/release_train mount output: nfsserver:/opt/VRTSsfaetest/autosetup on /sfaetest/autosetup type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=,mountvers=3,mountport=876,mountproto=udp,local_lock=none,addr=) nfsserver:/sfaetest/scratch on /sfaetest/scratch type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=,mountvers=3,mountport=876,mountproto=udp,local_lock=none,addr=) nfsserver:/opt/VRTSsfaetest/core/utilities/scripts on /sfaetest/scripts type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=,mountvers=3,mountport=876,mountproto=udp,local_lock=none,addr=) nfsserver:/opt/VRTSsfaetest/core/utilities/config on /sfaetest/config type nfs (rw,relatime,vers=3,rsize=32768,wsize=32768,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=,mountvers=3,mountport=876,mountproto=udp,local_lock=none,addr=) puneva:/re on /net/re type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountaddr=1,mountvers=3,mountport=41302,mountproto=udp,local_lock=none,addr=) punevau:/re/release_train on /net/re/release_train type nfs (rw,relatime,vers=3,rsize=1048576,wsize=1048576,namlen=255,hard,proto=tcp,timeo=600,retrans=2,sec=sys,mountproto=,local_lock=none,addr=) none on /dev/odm type vxodmfs (rw,relatime) Actual results: nfs mount points exported with options "rw,nohide,crossmnt" on nfs server and mounted on RHEL7 machine , displays only one mount in "df -k" output and displays all mount points mounted from nfs server in mount output . If we export without "nohide,crossmnt" from nfs server, we are able to see mount pounts in both mount and df output. Expected results: nfs mount points exported with options "rw,nohide,crossmnt" on nfs server and mounted on RHEL7 machine should display all mounted nfs mount points in "df -k" output. Additional info: