Bug#1139992: reproducibility fail in i386: make_gmm_test failed

[Drew Parsons]

Source: getfem
Version: 5.5+dfsg1-1
Severity: normal
User: debian-qa at lists.debian.org
Usertags: i386
Control: forwarded -1 https://savannah.nongnu.org/bugs/index.php?68450

Debian reproducibility builds found a GMM test error in getfem 5.5 on i386.

The failing build log is
https://reproduce.debian.net/i386/api/v1/builds/213928/log

The error message is:
...
PASS: thermo_elasticity_electrical_coupling.pl
PASS: laplacian_with_bricks.pl
PASS: test_assembly.pl
FAIL: make_gmm_test.pl
======================================
   getfem 5.5: tests/test-suite.log
======================================

# TOTAL: 41
# PASS:  40
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0

System information (uname -a): Linux 6.12.90+deb13.1-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.12.90-2 (2026-05-27) i686
Distribution information (/etc/os-release):
PRETTY_NAME="Debian GNU/Linux forky/sid"
NAME="Debian GNU/Linux"
VERSION_CODENAME=forky
ID=debian
HOME_URL="https://ww ... ebian.org/"
SUPPORT_URL="https://www.de ... an.org/support"
BUG_REPORT_URL="https://bug ... debian.org/"

.. contents:: :depth: 2

FAIL: make_gmm_test.pl
======================

Gmm tests : Making 1 execution of each test
Testing  ./gmm_torture01_lusolve.cc
Testing  ./gmm_torture05_mult.cc
============================================
|    A GMM error has been detected !!!     |
============================================
Error in ./../src/gmm/gmm_dense_qr.h, line 806 void gmm::symmetric_qr_algorithm(const MAT1&, const VECT&, const MAT2&, typename number_traits<typename linalg_traits<V>::value_type>::magnitude_type, bool) [with MAT1 = dense_matrix<std::complex<float> >; VECT = std::vector<float>; MAT2 = dense_matrix<std::complex<float> >; typename number_traits<typename linalg_traits<V>::value_type>::magnitude_type = float; typename linalg_traits<V>::value_type = std::complex<float>]:
QR algorithm failed.


i686-linux-gnu-g++ -Wall -g -O2 -ffile-prefix-map=/build/reproducible-path/getfem-5.5+dfsg1=. -fstack-protector-strong -Wformat -Werror=format-security -O3 -fmessage-length=0 -fvisibility-inlines-hidden -ftemplate-depth-100 -std=c++14 -fPIC -Wall -W -Wextra -Wshadow -Wno-unknown-pragmas -Wno-variadic-macros -Wno-unused-but-set-variable -Wpointer-arith -Wcast-qual -Wwrite-strings -Wconversion -Wredundant-decls -Wno-long-long -Wdate-time -D_FORTIFY_SOURCE=2 -I/usr/local/include -I/usr/include -I./../src -I./../include -I../src -I../include auto_gmm_torture05_mult.cc -o auto_gmm_torture05_mult -Wl,-z,relro -Wl,-z,now -lqhull_r -lsmumps_seq -ldmumps_seq -lcmumps_seq -lzmumps_seq -lpord_seq -ldl -llapack -lblas


****************************************************

    Execution error, please submit this bug to
    Yves.Renard at insa-lyon.fr, with the file
    auto_gmm_torture05_mult.cc
    produced in directory "tests".

****************************************************
FAIL make_gmm_test.pl (exit status: 1)

============================================================================
Testsuite summary for getfem 5.5
============================================================================
# TOTAL: 41
# PASS:  40
# SKIP:  0
# XFAIL: 0
# FAIL:  1
# XPASS: 0
# ERROR: 0



This test failure occured during reproducibility tesitng.
getfem 5.5 had previously built successfully on i386,
 https://buildd.debian.org/status/fetch.php?pkg=getfem&arch=i386&ver=5.5%2Bdfsg1-1&stamp=1781127325&raw=0
 
Bug filed upstream
https://savannah.nongnu.org/bugs/index.php?68450