Re: Recent FreeBSD, NFSv4 and /var/db/mounttab

From: Rick Macklem <rmacklem_at_uoguelph.ca>
Date: Mon, 8 May 2017 00:50:53 +0000
Claude Buisson wrote:
>On 05/07/2017 21:09, Rick Macklem wrote:
>> Claude Buisson wrote:
>>> Hi,
>>>
>>> Last month, I started switching all my systems (stable/9, stable/10,
>>> stable/11 and current) to NFSv4, and I found that:
>>>
>>>   on current (svn 312652) an entry is added to /var/db/mounttab by
>>> mount_nfs(8), but not suppressed by umount(8). It can be suppressed by
>>> rpc.umntall(8).
>>>
>>> The same anomaly appears on stable/11 after upgrading to svn 312950.
>>>
>>> It is relatively easy to trace this anomaly to r308871 on current and
>>> its MFHs (r309517 for stable/11).
>>>
>>> Patching sbin/umount/umount.c to restore the RPC call for NFSv4 makes
>>> umount(8) suppress the mounttab entry as before.
>>>
>>> I do not know what is the proper solution, as suppressing the
>>> modification of mounttab by mount_nfs(8) for NFSv4 could be an (more
>>> complicated) alternative !
I chose this alternative, since NFSv4 has nothing to do with the Mount protocol.
A one line patch to do this is now committed to head as r317931.

Thanks for reporting this, rick
[stuff snipped]
Received on Sun May 07 2017 - 22:50:56 UTC

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