lib/55342: libarchive tests fail randomly

[martin%NetBSD.org@localhost]

>Number:         55342
>Category:       lib
>Synopsis:       libarchive tests fail randomly
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Jun 03 18:15:00 +0000 2020
>Originator:     Martin Husemann
>Release:        NetBSD 9.99.64
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD seven-days-to-the-wolves.aprisoft.de 9.99.64 NetBSD 9.99.64 (GENERIC) #396: Sun May 31 11:06:59 CEST 2020 martin%seven-days-to-the-wolves.aprisoft.de@localhost:/work/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:

The libarchive test cases fail randomly with:

Totals:
  Tests run:              553
  Tests failed:             1
  Assertions checked:30853424
  Assertions failed:        1
  Skips reported:          73

Failing tests:
  457: test_write_disk_sparse (1 failures)

or they (sometimes) succeed completely.

>How-To-Repeat:
cd /usr/tests/lib/libarchive && atf-run

>Fix:
n/a