NFS mounts dissapearing

[Rick Macklem]

On Wed, 28 Jan 2009, Sean Bruno wrote:

> On Wed, 2009-01-28 at 18:52 +0100, Michiel Boland wrote:
>> Sean Bruno wrote:
>>> I've noted that my NFS mount of a directory is vanishing periodically
>>> under -current.  I am unable to unmount/remount the directory and the
>>> system returns Permission Denied on all attempts to access the
>>> directory.
>>>
>>> Is this something that is known and being investigated?
>>
>> FWIW I am seeing this too, except that I can still umount/remount. It appears to
>> me that TCP connections to remote nfsd use a privileged source port initially,
>> but if the connection is severed and reestablished later the source port is no
>> longer < 1024. Client is -CURRENT, server is solaris with nfssrv:nfs_portmon=1.
>>
>> Cheers
>> Michiel
>
You guys might want to try rebuilding a kernel with
options NFS_LEGACYRPC
and see if that fixes the problem, rick