diff --git a/README.adoc b/README.adoc
index 93c81b5..4a5e1da 100644
--- a/README.adoc
+++ b/README.adoc
@@ -1923,6 +1923,10 @@ on many (all?) functions.
 
 See also: https://github.com/cirosantilli/linux-kernel-module-cheat/issues/19
 
+=== GDB view ARM system registers
+
+Not possible as of QEMU 3.0.0 it seems: https://stackoverflow.com/questions/46415059/how-to-observe-aarch64-system-registers-in-qemu
+
 === GDB step debug multicore
 
 We can set and get which cores the Linux kernel allows a program to run on with `sched_getaffinity` and `sched_setaffinity`: