Re: "./Tie/StdHash.pm: Permission denied at" error messages

I recently ran into these "./Tie/StdHash.pm: Permission denied at" error
messages (see original message from Aug 2016 below) running Amanda 3.4.5
on Ubuntu Xenial.

In researching the problem, I found 
  https://bugzilla.redhat.com/show_bug.cgi?id=1257686#c9
, which seems to have been in reponse to this original messag, but I
don't see any on-list followup.

That bug-comment references a "patch from upstream", which was
apparently applied to the Redhat 3.3.9 package at that time.  The core
of that patch is the following change to
.../perl/Amanda/Config/FoldingHash.pm :

+-use base 'Tie::StdHash';
++eval {require 'Tie::StdHash';};
++our @ISA = 'Tie::StdHash';

However, this change doesn't appear to have been included in Amanda 3.4
(nor in the origin/3_3 branch of the git://github.com/zmanda/amanda.git
repo).

The patch still seems to be included in the latest version of Fedora:
   http://pkgs.fedoraproject.org/cgit/rpms/amanda.git/tree/?h=f26
(see "amanda-3.3.9-hash-permission.patch" on that page), so I was
wondering if there is some reason it hasn't been incorporated upstream?

(As described in the following bug report, the problem is that if the
Amanda user can't read the current working directory, Amanda perl
programs [incorrectly] abort with the message about "permission denied"
for StdHash.pm,
  https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=775612
)

Thanks.

						Nathan
  

On Tue, Aug 02, 2016 at 07:14:23 -0400, Josef Ridky wrote:
> Hi
> 
> I was requested to solve this problem so I am contacting you as upstrem:
> 
> ---
> 
> bash-4.3$ amdump normal
> Can't locate Tie/StdHash.pm:   ./Tie/StdHash.pm: Permission denied at /usr/share/perl5/base.pm line 99.
> 	...propagated at /usr/share/perl5/base.pm line 108.
> BEGIN failed--compilation aborted at /usr/lib64/perl5/vendor_perl/Amanda/Config/FoldingHash.pm line 3.
> Compilation failed in require at /usr/lib64/perl5/vendor_perl/Amanda/Config.pm line 753.
> BEGIN failed--compilation aborted at /usr/lib64/perl5/vendor_perl/Amanda/Config.pm line 753.
> Compilation failed in require at /usr/sbin/amdump line 29.
> BEGIN failed--compilation aborted at /usr/sbin/amdump line 29.
> 
> ---
> 
> The problem is, that in Perl 5.20 has been removed file Tie/StdHash.pm and has been "transferred" to Tie/Hash.pm.
> So is correct to use "use base 'Tie::StdHash' in FoldingHash.pm on line 3? Will removing of this line solve described problem?
> 
> Best regards
> 
> Josef Ridky
> Associate Software Engineer
> Core Services Team
> Red Hat Czech, s.r.o.


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