Nothing in subiquity or curtin python can cause an illegal instruction
directly; it's byte-code running in python3. python3 is not linked to
libstdc++ so maybe one of the programs that curtin execs is linked to
libstdc++
It looks like sgdisk is linked to libstdc++; I don't know if this
is related or not. This likely needs some s390x library/kernel
debugging to get further.
Nothing in subiquity or curtin python can cause an illegal instruction
directly; it's byte-code running in python3. python3 is not linked to
libstdc++ so maybe one of the programs that curtin execs is linked to
libstdc++
It looks like sgdisk is linked to libstdc++; I don't know if this
is related or not. This likely needs some s390x library/kernel
debugging to get further.