lib/51569: crypto tests randomly failing on amd64 with openssl 1.0.2j

[gson%gson.org@localhost (Andreas Gustafsson)]

>Number:         51569
>Category:       lib
>Synopsis:       crypto tests randomly failing on amd64 with openssl 1.0.2j
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Oct 21 17:15:00 +0000 2016
>Originator:     Andreas Gustafsson
>Release:        NetBSD-current, source date >= 2016.10.14.20.34.29
>Organization:

>Environment:
System: NetBSD
Architecture: x86_64
Machine: amd64
>Description:

A number of tests in tests/crypto/libcrypto are randomly failing on
the amd64 testbed, in about half the runs.  The failing test cases
are:

  crypto/libcrypto/t_libcrypto:bn
  crypto/libcrypto/t_pubkey:ec
  crypto/libcrypto/t_pubkey:ecdh
  crypto/libcrypto/t_pubkey:ecdsa

This appears to have started with the import of openssl 1.0.2j on
October 14.

The first logged failures are at:

  http://releng.netbsd.org/b5reports/amd64/commits-2016.10.html#2016.10.14.20.34.29

>How-To-Repeat:

>Fix: