Bug 30142

Summary:	nfs 4 mount doesn't work after kernel update
Product:	Mageia	Reporter:	Dieter Schütze <dieter>
Component:	RPM Packages	Assignee:	Kernel and Drivers maintainers <kernel>
Status:	NEW ---	QA Contact:
Severity:	normal
Priority:	Normal	CC:	marja11
Version:	8
Target Milestone:	---
Hardware:	All
OS:	Linux
Whiteboard:
Source RPM:	nfs-utils-2.5.2-2.mga8.src.rpm	CVE:
Status comment:

Description Dieter Schütze 2022-03-09 08:57:16 CET

Description of problem:
after upgrade to kernel
kernel-server-5.15.25-1.mga8-1-1.mga8.x86_64
nfs 4 mount doesn't work anymore only version 3 is working.

Version-Release number of selected component (if applicable):
Name        : nfs-utils
Epoch       : 1
Version     : 2.5.2
Release     : 2.mga8
Architecture: x86_64

How reproducible:


Steps to Reproduce:
1. boot with kernel-server-5.15.25-1.mga8-1-1
2. mount your nfs export with 
  /sbin/mount.nfs someserver.somedomain.de:/somedata /data -o rw,hard,tcp,rsize=8192,wsize=8192
or 
/sbin/mount.nfs someserver.somedomain.de:/somedata /data -o vers=4,rw,hard,tcp,rsize=8192,wsize=8192
or
/sbin/mount.nfs someserver.somedomain.de:/somedata /data -o nfsvers=4,rw,hard,tcp,rsize=8192,wsize=8192
or
/sbin/mount.nfs4 someserver.somedomain.de:/somedata /data -o rw,hard,tcp,rsize=8192,wsize=8192

doesn't work but 
/sbin/mount.nfs someserver.somedomain.de:/somedata /data -o vers=3,rw,hard,tcp,rsize=8192,wsize=8192
work

boot with kernel-server-5.15.23-1.mga8-1-1.mga8 will work
is anything changed with nfs 4 and the new kernel ?
sorry i don't know if this is a nfs 4 bug or a kernel bug.

Comment 1 Thomas Backlund 2022-03-09 15:50:54 CET

do you get any errors in dmesg when the mount fails ?

Comment 2 Dieter Schütze 2022-03-10 11:09:19 CET

Sorry, no errors neither with -v

/sbin/mount.nfs -v someserver.somedomain.de:/somedata /data
mount.nfs: timeout set for Thu Mar 10 11:03:21 2022
mount.nfs: trying text-based options 'vers=4.2,addr=xxx.xxx.x.xxx,clientaddr=xxx.xxx.x.xxx'

thats all i got.

But if you do this:

/sbin/mount.nfs -v -o vers=3 someserver.somedomain.de:/somedata /data
you got
mount.nfs: timeout set for Thu Mar 10 11:08:39 2022
mount.nfs: trying text-based options 'vers=3,addr=xxx.xxx.x.xxx'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying xxx.xxx.x.xxx prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying xxx.xxx.x.xxx prog 100005 vers 3 prot UDP port 30000

and it works, but only with version 3 since the new kernel.

Marja Van Waes 2022-03-10 16:14:39 CET

CC: (none) => marja11
Assignee: bugsquad => kernel