From bbd05e4811d6cb2b44f37f1de8f971669b728a75 Mon Sep 17 00:00:00 2001
From: Clyde Stubbs <2366188+clydebarrow@users.noreply.github.com>
Date: Mon, 5 Oct 2026 23:50:18 +1100
Subject: [PATCH] [esp32] Work around ESP-IDF stack bug on P4 (#20181)

---
 esphome/components/esp32/__init__.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/esphome/components/esp32/__init__.py b/esphome/components/esp32/__init__.py
index 6a693eff89..1166afe4ec 100644
--- a/esphome/components/esp32/__init__.py
+++ b/esphome/components/esp32/__init__.py
@@ -2873,6 +2873,8 @@ async def to_code(config):
             "CONFIG_ESP32P4_SELECTS_REV_LESS_V3",
             config.get(CONF_ENGINEERING_SAMPLE, False),
         )
+        # Work around ESP-IDF bug: see https://github.com/espressif/esp-idf/issues/19020
+        add_idf_sdkconfig_option("CONFIG_ESP_MAIN_TASK_STACK_SIZE", 8192)
 
     # ESP32-C2 defaults to the ROM's newlib "nano" printf, which does not
     # understand %zu or %lld and crashes on any %s that follows one.