Hi Jiri, Sorry about the noise. My email seems to be rejected to the list. Resending with plain text. s390 has overlapping address space. As suggested by the commit, ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE should not be enabled for s390 kernel. This should be changed in bpftrace application. Even if we enable ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, bpf_probe_read will only work in certain cases like kernel pointer deferences (kprobes). User pointer deferences in uprobes/kprobes/etc will fail or have some invalid data I am looking forward to this fix: https://github.com/iovisor/bpftrace/pull/1141 OR probe split in bpftrace. Thank you Best Regards Sumanth
