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

[Ryba, Lukas]

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. 

-----Original Message-----
From: Paul Eggert [mailto:address@hidden 
Sent: Thursday, October 04, 2012 5:53 PM
To: Ryba, Lukas
Cc: address@hidden
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.