Handle missing frames when reading BPF maps

Signed-off-by: Francisco Javier Honduvilla Coto <javierhonduco@gmail.com>
javierhonduco · Feb 22, 2023 · 0096cf8 · 0096cf8
1 parent 019fb4b
commit 0096cf8
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/src/rbperf.rs b/src/rbperf.rs
@@ -422,6 +422,14 @@ impl<'a> Rbperf<'a> {
                             self.stats.map_reading_errors += 1;
                             continue;
                         };
+
+                        // Handle not found, -ENOENT.
+                        if let Ok(None) = frame_bytes {
+                            debug!("Reading from id_to_stack did not found an entry");
+                            self.stats.map_reading_errors += 1;
+                            continue;
+                        };
+
                         let frame = unsafe {
                             parse_frame(
                                 &frame_bytes