Bug#860908: perl 5.24 segfaults during a dpkg -i of cmanager (and other packages)

[Brad Barnett]

Package: perl
Version: 5.24.1-2


When installing packages right after a fresh stretch install, perl started to
segfault.

EG:

Setting up cgmanager (0.41-2) ...
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault
Segmentation fault

[ 2530.808433] perl[5276]: segfault at 5589860cb010 ip 00005589860cb010 sp 00007ffdfa3e6958 error 15
[ 2530.812576] perl[5277]: segfault at 55f75a91f010 ip 000055f75a91f010 sp 00007ffed13866d8 error 15
[ 2530.816661] perl[5278]: segfault at 55bd98054010 ip 000055bd98054010 sp 00007ffea21eaec8 error 15
[ 2530.820871] perl[5279]: segfault at 5632f8e61010 ip 00005632f8e61010 sp 00007fff26cbfee8 error 15
[ 2530.825028] perl[5280]: segfault at 55c431341010 ip 000055c431341010 sp 00007ffda4cb5dc8 error 15
[ 2530.829124] perl[5281]: segfault at 5571ea74f010 ip 00005571ea74f010 sp 00007ffe1f33b9c8 error 15
[ 2530.833265] perl[5282]: segfault at 563a61ffc010 ip 0000563a61ffc010 sp 00007fff2817d4a8 error 15
[ 2530.837391] perl[5283]: segfault at 5654c9ab6010 ip 00005654c9ab6010 sp 00007fff87e60de8 error 15
[ 2530.841479] perl[5284]: segfault at 556728493010 ip 0000556728493010 sp 00007ffd678dd278 error 15


I used dpkg + wget, downgraded via --force-all both perl and perl-base to jessie's version.

The problem went away, and I was able to install cmanager without a segfault.

System can be down a few days, so I've left it in this state.  I can test / debug / etc.

Thanks