From 4a9ef4754ebb78a9a60a281fc697af915217a910 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?D=C3=A1niel=20Buga?= <bugadani@gmail.com>
Date: Fri, 21 Feb 2025 12:22:48 +0100
Subject: [PATCH] Explain yielding

---
 esp-wifi/src/preempt_builtin/timer/xtensa.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/esp-wifi/src/preempt_builtin/timer/xtensa.rs b/esp-wifi/src/preempt_builtin/timer/xtensa.rs
index 7c1f01cfbe..d6be4b3078 100644
--- a/esp-wifi/src/preempt_builtin/timer/xtensa.rs
+++ b/esp-wifi/src/preempt_builtin/timer/xtensa.rs
@@ -62,6 +62,8 @@ extern "C" fn timer_tick_handler() {
         timer.clear_interrupt();
     });
 
+    // For unknown reasons, task_switch would end up generating an exception when
+    // called at priority 1, so trigger the level 3 interrupt instead.
     yield_task();
 }