[Debian-astro-maintainers] Bug#1128828: scamp: FTBFS with glibc 2.43 on arm64, issue with 2MB THP

[Emanuele Rocca]

Source: scamp
Version: 2.14.0-1
Severity: important
Tags: ftbfs upstream
Justification: fails to build from source
User: debian-glibc at lists.debian.org
Usertags: glibc-2.43

Hi,

scamp fails to build from source on arm64 when using glibc 2.43,
currently in experimental.

The issue is triggered by glibc 2.43 on arm64 enabling 2MB THP by
default:
https://sourceware.org/git/?p=glibc.git;a=commit;h=321e1fc73f53081d92ba357cdd48c56b79292020

The problem is however not architecture-specific. For example it can be
reproduced with glibc 2.42 on amd64 by building the package with the
GLIBC_TUNABLES environment variable set to glibc.malloc.hugetlb=2.

Successful build with glibc 2.42, currently in sid:
https://people.debian.org/~ema/glibc-2.43-rebuilds/output-2/scamp_arm64.build

Logs of a failed build with glibc 2.43 are here:
https://people.debian.org/~ema/glibc-2.43-rebuilds/output-1/scamp_arm64.build

Salient part:

make[4]: Entering directory '/build/reproducible-path/scamp-2.14.0/tests'
PASS: test_chealpixstore
PASS: test_chealpix
../autoconf/test-driver: line 119:  3109 Aborted                    "$@" >> "$log_file" 2>&1
FAIL: test_crossid_single_catalog
../autoconf/test-driver: line 119:  3110 Aborted                    "$@" >> "$log_file" 2>&1
FAIL: test_crossid_single_catalog_moving
[...]

FAIL: test_crossid_single_catalog
=================================

test_crossid_single_catalog: test_crossid_single_catalog.c:87: compare_fields: Assertion `linkedspl[0]->prevsamp == NULL' failed.
FAIL test_crossid_single_catalog (exit status: 134)

FAIL: test_crossid_single_catalog_moving
========================================

test_crossid_single_catalog_moving: test_crossid_single_catalog_moving.c:86: compare_fields: Assertion `linkedspl[0]->prevsamp == NULL' failed.
FAIL test_crossid_single_catalog_moving (exit status: 134)