GNU bug report logs - #12523
Solaris 10 "cp -p" returns unknown error on NFSv4 share,permissions preserve not work

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From: Eric Blake <eblake <at> redhat.com>
To: "Ryba, Lukas" <Lukas.Ryba <at> Commerzbank.com>
Cc: 'Paul Eggert' <eggert <at> cs.ucla.edu>, "12523 <at> debbugs.gnu.org" <12523 <at> debbugs.gnu.org>
Subject: bug#12523: Solaris 10 "cp -p" returns unknown error on NFSv4 share, permissions preserve not work
Date: Mon, 08 Oct 2012 10:13:31 -0600

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On 10/08/2012 05:45 AM, Ryba, Lukas wrote:
> Vendor currently investigated that problem happens with the combination of ZFS filesystem on NFSv3 only server and NFSv3 client. 
> 
> 1. facl with combination of ZFS filesystem(NFSv4 acls) exported by NFSv4 server is ok
> 2. facl with combination of UFS filesystem(POSIX acls) exported by NFSv3 server is ok
> 3. facl with combination of ZFS filesystem(NFSv4 acls) exported by NFSv3 server fails on client with errno -1 which is our case
> IMHO errno value in case 3 should be something useful. Like ENOTSUP. 

I wonder if gnulib should write rpl_facl() that checks for the case of
facl() failing with errno set to -1 and explicitly reset errno to
ENOTSUP in that case, to work around this vendor bug.

> 
> -----Original Message-----
> From: Paul Eggert [mailto:eggert <at> cs.ucla.edu] 
> Sent: Thursday, October 04, 2012 5:53 PM
> To: Ryba, Lukas
> Cc: 12523 <at> debbugs.gnu.org
> Subject: Re: bug#12523: Solaris 10 "cp -p" returns unknown error on NFSv4 share, permissions preserve not work
> 
> On 10/04/2012 02:19 AM, Ryba, Lukas wrote:
>> Workaround is simple. Just not use facl call right now. acl works ok.
> 
> That might work around the problem on your Solaris implementation,
> but it introduces other issues, on other platforms, so I'd like
> to get at the bottom of why such a change is really needed.
> 

-- 
Eric Blake   eblake <at> redhat.com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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