The next and build log succeeds https://buildd.debian.org/status/fetch.php?pkg=mariadb-10.6&arch=ppc64&ver=1%3A10.6.7-3&stamp=1647203640&raw=0
The remaining test failure main.func_json_notembedded has a fix waiting (MDEV-27955) When I see a SIGILL in a test case I'll believe it's incorrectly called. In the meantime I believe the runtime checks are there.
