[Bug 1370954] Perl module Number::Fraction dumps core when loaded.

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https://bugzilla.redhat.com/show_bug.cgi?id=1370954

Petr Pisar <ppisar@xxxxxxxxxx> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |colonel@xxxxxxxxxxxx,
                   |                            |ppisar@xxxxxxxxxx
              Flags|                            |needinfo?(colonel@monmouth.
                   |                            |com)



--- Comment #1 from Petr Pisar <ppisar@xxxxxxxxxx> ---
I cannot reproduce it. Does this command fails at your machine?

$ perl -e 'use Number::Fraction;'

It should not print anything. If it fails, I suspect you have some private copy
of a binary Perl module installed that was built against older perl and is not
compatible with Fedora's perl (e.g. after upgrading from Fedora 22). You can
check it with strace command to see where the files are loaded from:

$ strace -e open -- perl -e 'use Number::Fraction;'
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libperl.so.5.22", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libresolv.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libnsl.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libcrypt.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libutil.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libfreebl3.so", O_RDONLY|O_CLOEXEC) = 3
open("/usr/lib/locale/locale-archive", O_RDONLY|O_CLOEXEC) = 3
open("/dev/urandom", O_RDONLY)          = 3
open("/dev/null", O_RDONLY)             = 3
open("/usr/share/perl5/vendor_perl/Number/Fraction.pm", O_RDONLY) = 4
open("/usr/share/perl5/strict.pm", O_RDONLY) = 5
open("/usr/share/perl5/warnings.pm", O_RDONLY) = 5
open("/usr/share/perl5/vendor_perl/Carp.pm", O_RDONLY) = 5
open("/usr/share/perl5/vendor_perl/Exporter.pm", O_RDONLY) = 5
[...]
open("/usr/lib64/perl5/vendor_perl/Moose/Meta/Role/Application/ToRole.pm",
O_RDONLY) = 6
open("/usr/lib64/perl5/vendor_perl/Moose/Meta/Role/Application/ToInstance.pm",
O_RDONLY) = 6
open("/usr/lib64/perl5/vendor_perl/Moose/Meta/Attribute/Native.pm", O_RDONLY) =
6
+++ exited with 0 +++

Especially files that end with ".so" are important as they are binary Perl
modules that must match current perl. The wrong location is usually from
/usr/local or home user's home directory. My output for the .so file looks like
this:

$ strace -e open -- perl -e 'use Number::Fraction;' 2>&1 |grep \\.so
open("/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libperl.so.5.22", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libpthread.so.0", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libresolv.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libnsl.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libdl.so.2", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libcrypt.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libutil.so.1", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libc.so.6", O_RDONLY|O_CLOEXEC) = 3
open("/lib64/libfreebl3.so", O_RDONLY|O_CLOEXEC) = 3
open("/usr/lib64/perl5/vendor_perl/auto/List/Util/Util.so", O_RDONLY|O_CLOEXEC)
= 6
open("/usr/lib64/perl5/vendor_perl/auto/Params/Util/Util.so",
O_RDONLY|O_CLOEXEC) = 8
open("/usr/lib64/perl5/vendor_perl/auto/Sub/Name/Name.so", O_RDONLY|O_CLOEXEC)
= 9
open("/usr/lib64/perl5/vendor_perl/auto/Package/Stash/XS/XS.so",
O_RDONLY|O_CLOEXEC) = 8
open("/usr/lib64/perl5/vendor_perl/auto/List/MoreUtils/MoreUtils.so",
O_RDONLY|O_CLOEXEC) = 10
open("/usr/lib64/perl5/auto/mro/mro.so", O_RDONLY|O_CLOEXEC) = 9
open("/usr/lib64/perl5/vendor_perl/auto/Sub/Identify/Identify.so",
O_RDONLY|O_CLOEXEC) = 11
open("/usr/lib64/perl5/vendor_perl/auto/Moose/Moose.so", O_RDONLY|O_CLOEXEC) =
7
open("/usr/lib64/perl5/auto/B/B.so", O_RDONLY|O_CLOEXEC) = 9
open("/usr/lib64/perl5/auto/re/re.so", O_RDONLY|O_CLOEXEC) = 9

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