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-rw-r--r--test/README.md3
1 files changed, 2 insertions, 1 deletions
diff --git a/test/README.md b/test/README.md
index b5cbe1aff3..a6fb9c9d73 100644
--- a/test/README.md
+++ b/test/README.md
@@ -175,7 +175,8 @@ cat /tmp/user/1000/testo9vsdjo3/node1/regtest/bitcoind.pid
gdb /home/example/bitcoind <pid>
```
-Note: gdb attach step may require `sudo`
+Note: gdb attach step may require ptrace_scope to be modified, or `sudo` preceding the `gdb`.
+See this link for considerations: https://www.kernel.org/doc/Documentation/security/Yama.txt
### Util tests