bin/56257: tar segfaults during emacs build

[jsarkes%gmail.com@localhost]

>Number:         56257
>Category:       bin
>Synopsis:       tar segfaults during emacs build
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Jun 17 21:30:01 +0000 2021
>Originator:     Joseph Sarkes
>Release:        9.99.81 and others
>Organization:
none
>Environment:
9.99.81 NetBSD 9.99.81 (GENERIC) #1
>Description:
at various times including building emacs and emacs 27 tar segfaults doing the .elc files. It has also died on me using other earlier versions of Netbsd, 9, 9.1, 9.2. I'm used to moving and copying directories using cpio and tar and was surprised a number of times by the segfault.


>How-To-Repeat:
well, atm i'd try building emacs or emacs27 in pkgsrc2021Q1 but i think any large tar will blow up.
>Fix:
none known atm, i did a  work around using cp -R but that is not a fix.