Testsuite crashes on sparc64 due to unaligned access (Bus error)

[glaubitz]

Trying to run the testsuite on sparc64 on Linux results in a crash due to unaligned access (Bus error):

Running tests...
/usr/bin/ctest --force-new-ctest-process --verbose -j32
UpdateCTestConfiguration  from :/build/reproducible-path/opendht-3.0.1/obj-sparc64-linux-gnu/DartConfiguration.tcl
Parse Config file:/build/reproducible-path/opendht-3.0.1/obj-sparc64-linux-gnu/DartConfiguration.tcl
UpdateCTestConfiguration  from :/build/reproducible-path/opendht-3.0.1/obj-sparc64-linux-gnu/DartConfiguration.tcl
Parse Config file:/build/reproducible-path/opendht-3.0.1/obj-sparc64-linux-gnu/DartConfiguration.tcl
Test project /build/reproducible-path/opendht-3.0.1/obj-sparc64-linux-gnu
Constructing a list of tests
Done constructing a list of tests
Updating test list for fixtures
Added 0 tests to meet fixture requirements
Checking test dependency graph...
Checking test dependency graph end
Connected to MAKE jobserver
test 1
    Start 1: TEST

1: Test command: /build/reproducible-path/opendht-3.0.1/obj-sparc64-linux-gnu/opendht_unit_tests
1: Working Directory: /build/reproducible-path/opendht-3.0.1/obj-sparc64-linux-gnu
1: Test timeout computed to be: 1500
1: .......
1/1 Test #1: TEST .............................Bus error***Exception: 104.48 sec
.......


0% tests passed, 1 tests failed out of 1

Total Test time (real) = 104.48 sec

The following tests FAILED:
	  1 - TEST (Bus error)
Errors while running CTest

Full build log available in: https://buildd.debian.org/status/fetch.php?pkg=opendht&arch=sparc64&ver=3.0.1-1.1&stamp=1757500273&raw=0

Access to a SPARC machine for testing is available through the GCC Compile Farm: https://gcc.gnu.org/wiki/CompileFarm