[Mesa-users] Installation issue with mesa-25.12.1 on Ubuntu 24.04.4 LTS (WSL)

Tue Mar 3 15:03:21 UTC 2026

Dear all,
I am struggling with the installation of the recent mesa 25.12.1 with the
recent mesasdk 26.3.1 on WSL2.

Here's my system information:
OS : Ubuntu 24.04.4 LTS through WSL2 (Windows 11 Education 22H2)
CPU : AMD Ryzen 5600
--------------------------------------------
The installation fails at the `star/test` step with the error:
Note: The following floating-point exceptions are signalling:
IEEE_INVALID_FLAG IEEE_OVERFLOW_FLAG
ERROR STOP 1

Error termination. Backtrace:
#0  0x7f26db0bb15e in ???
#1  0x7f26db0bbd99 in ???
#2  0x7f26db0bd1d2 in ???
#3  0xadc5f1 in __utils_lib_MOD_mesa_error
        at ../public/utils_lib.f90:1081
#4  0x7c7e6c in __solver_support_MOD_sizeb
        at ../private/solver_support.f90:421
#5  0x799804 in do_solver_work
        at ../private/star_solver.f90:302
#6  0x79c9ff in do_solver
        at ../private/star_solver.f90:157
#7  0x79cd3e in __star_solver_MOD_solver
        at ../private/star_solver.f90:82
#8  0x750aeb in newt
        at ../private/struct_burn_mix.f90:788
#9  0x750aeb in hydro_solver_step
        at ../private/struct_burn_mix.f90:782
#10  0x750aeb in do_solver
        at ../private/struct_burn_mix.f90:724
#11  0x7546f5 in do_solver_converge
        at ../private/struct_burn_mix.f90:395
#12  0x7546f5 in __struct_burn_mix_MOD_do_struct_burn_mix
        at ../private/struct_burn_mix.f90:172
#13  0x5b4538 in do_step_part2
        at ../private/evolve.f90:678
#14  0x5b4538 in __evolve_MOD_do_evolve_step_part2
        at ../private/evolve.f90:481
#15  0x40e4b3 in __star_lib_MOD_star_evolve_step_part2
        at ../public/star_lib.f90:590
#16  0x40e4b3 in __star_lib_MOD_star_evolve_step
        at ../public/star_lib.f90:560
#17  0x42689b in __run_star_support_MOD_do_evolve_one_step
        at ../job/run_star_support.f90:210
#18  0x427195 in __run_star_support_MOD_run1_star
        at ../job/run_star_support.f90:113
#19  0x4074cf in __run_star_MOD_do_run_star
        at ../../../star/job/run_star.f90:44
#20  0x407541 in run
        at ../src/run.f90:34
#21  0x407583 in main
        at ../src/run.f90:22
File: ../private/solver_support.f90, Line:  421, Message: sizeB

FAILED

/home/watchingyou84/mesa-25.12.1/star/test
TEST FAILED -- compare test_output to tmp.txt

/home/watchingyou84/mesa-25.12.1/star
./build_and_test FAILED
---------------------------------
And my further informations are:

MESA Version
r25.12.1

uname -a
Linux DESKTOP-EU5T093 5.15.167.4-microsoft-standard-WSL2 #1 SMP Tue Nov 5
00:21:55 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux

gfortran -v
Using built-in specs.
COLLECT_GCC=/home/watchingyou84/mesasdk-26.3.1/bin/gfortran.exec
COLLECT_LTO_WRAPPER=/home/watchingyou84/mesasdk-26.3.1/bin/../libexec/gcc/x86_64-pc-linux-gnu/15.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /home/user/sdk2-tmp/build/gcc/configure CC= CXX= LDFLAGS=
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --prefix=/home/user/sdk2-tmp/mesasdk
--with-gmp=/home/user/sdk2-tmp/mesasdk
--with-mpfr=/home/user/sdk2-tmp/mesasdk
--with-mpc=/home/user/sdk2-tmp/mesasdk --enable-languages=c,c++,fortran
--disable-multilib --disable-nls --enable-clocale=generic
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 15.2.0 (GCC)

$MESASDK_ROOT
/home/watchingyou84/mesasdk-26.3.1

MESASDK version
x86_64-linux-26.3.1

$PATH
/home/watchingyou84/mesasdk-26.3.1/bin:/home/watchingyou84/mesasdk-26.3.1/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/usr/lib/wsl/lib:/mnt/c/Program
Files/NVIDIA GPU Computing Toolkit/CUDA/v12.8/bin:/mnt/c/Program
Files/NVIDIA GPU Computing Toolkit/CUDA/v12.8/libnvvp:/mnt/c/Program Files
(x86)/NAT Service:/mnt/c/Program Files (x86)/Common
Files/Oracle/Java/javapath:/mnt/c/WINDOWS/system32:/mnt/c/WINDOWS:/mnt/c/WINDOWS/System32/Wbem:/mnt/c/WINDOWS/System32/WindowsPowerShell/v1.0/:/mnt/c/WINDOWS/System32/OpenSSH/:/mnt/c/Program
Files/dotnet/:/mnt/c/Program Files (x86)/NVIDIA
Corporation/PhysX/Common:/mnt/c/Program Files/NVIDIA Corporation/Nsight
Compute 2025.1.1/:/mnt/c/Program Files/NVIDIA Corporation/NVIDIA
app/NvDLISR:/mnt/c/Program Files/TensorRT-10.9.0.34/lib:/mnt/c/Program
Files/VideoLAN/VLC:/mnt/c/Program
Files/Streamlink/bin:/mnt/c/Users/k0104/AppData/Local/Microsoft/WindowsApps:/mnt/c/Users/k0104/AppData/Local/afreeca:/mnt/c/Users/k0104/AppData/Local/Programs/Ollama:/mnt/c/Users/k0104/AppData/Local/Python/bin:/snap/bin:/home/watchingyou84/mesa-25.12.1/scripts/shmesa:/home/watchingyou84/mesa-25.12.1/scripts/shmesa

$MESA_DIR
/home/watchingyou84/mesa-25.12.1
----------------------------

Thank you all in advance for any help.

Best regards,
Donggyu Lee
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