From 531367d7e16b3928e4fd88c2f2a1a04748aef7ed Mon Sep 17 00:00:00 2001
From: George Galt <george@galtfamily.net>
Date: Tue, 12 May 2026 19:47:54 -0400
Subject: [PATCH] [micro_wake_word] Increase INFERENCE_TASK_STACK_SIZE to 8192
 for P4 chip (#16390)

---
 esphome/components/micro_wake_word/micro_wake_word.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/esphome/components/micro_wake_word/micro_wake_word.cpp b/esphome/components/micro_wake_word/micro_wake_word.cpp
index c031a9f269..6877e9e5df 100644
--- a/esphome/components/micro_wake_word/micro_wake_word.cpp
+++ b/esphome/components/micro_wake_word/micro_wake_word.cpp
@@ -23,7 +23,13 @@ static const size_t DATA_TIMEOUT_MS = 50;
 
 static const uint32_t RING_BUFFER_DURATION_MS = 120;
 
+#ifdef CONFIG_IDF_TARGET_ESP32P4
+// ESP32-P4 PIE-optimized esp-nn kernels (e.g. depthwise_conv_s8_ch1_pie) require
+// significantly more stack than other variants, causing stack protection faults at 3072.
+static const uint32_t INFERENCE_TASK_STACK_SIZE = 8192;
+#else
 static const uint32_t INFERENCE_TASK_STACK_SIZE = 3072;
+#endif
 static const UBaseType_t INFERENCE_TASK_PRIORITY = 3;
 
 enum EventGroupBits : uint32_t {