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-rw-r--r--test/sys/test_ptrace.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/test/sys/test_ptrace.rs b/test/sys/test_ptrace.rs
index 02f9bf2d..924b462d 100644
--- a/test/sys/test_ptrace.rs
+++ b/test/sys/test_ptrace.rs
@@ -58,6 +58,7 @@ fn test_ptrace_cont() {
// FIXME: qemu-user doesn't implement ptrace on all arches and gives ENOSYS then.
// use it to filter out the affected platforms
+ // on valid platforms it will return Errno::EPERM
let err = ptrace::attach(getpid()).unwrap_err();
if err == Error::Sys(Errno::ENOSYS) {
return;