Red Hat Bugzilla – Bug 1269042
NFS V4 mounts of Solaris servers no longer work in FC22 RFS4_COMPOUND decode issue
Last modified: 2015-10-06 10:53:54 EDT
Description of problem:
As of FC22 I can no longer mount my Solaris 10 NFS servers from Fedora
using the default mount options.
The Solaris NFS server complains of:
Oct 5 23:54:41 palms nfssrv: [ID 474727 kern.notice] NOTICE: Failed to decode arguments for NFS version 4 procedure RFS4_COMPOUND client hostname.domain (192.168.41.186)
This worked fine in FC21 and prior.
Version-Release number of selected component (if applicable):
kernel-4.1.6-100.fc21.x86_64 and prior works fine
kernel-4.1.6-201.fc22.x86_64 and later doesn't
Steps to Reproduce:
1. palais# mount -r palms:/app/01/kick /x
mount.nfs: access denied by server while mounting palms:/app/01/kick
palms has this in the kernel log:
Oct 6 06:20:37 palms nfssrv: [ID 474727 kern.notice] NOTICE: Failed to decode arguments for NFS version 4 procedure RFS4_COMPOUND client palais.domain (192.168.41.191)
Workaround is to use -vers=3 option, which works fine.
tcpdump of fc22 attempt shows the request that is failing has opcode EXCHANGE_ID
on fc21, the first op sent is SETCLIENTID, which gets a SETCLIENTID_CONFIRM
See bz 1226387 for workarounds (or, if they don't work, reopen this bug so we can verify that this really is a dup).
Also, the bug is on the Solaris side, so if you have some way to lean on them to release the fix, please do.
*** This bug has been marked as a duplicate of bug 1226387 ***