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hold watchdog for part write, could timeout and brick

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J. Nick Koston
2026-04-29 12:30:51 -05:00
parent d733b0b516
commit 1f432d9d8a
1 changed files with 6 additions and 1 deletions
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esphome/components/ota/ota_backend_esp_idf.cpp
+6 -1
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@@ -305,6 +305,12 @@ OTAResponseTypes IDFOTABackend::update_partition_table() {
// Deinitialize NVS to prevent unwanted flash writes
nvs_flash_deinit();
// Hold the watchdog open for the entire critical section: optional app copy, partition-table
// erase/write, and boot partition selection. None of the steps below should yield long enough
// to require a refresh, but bundling them under a single guard avoids spurious resets if the
// underlying ESP-IDF calls take longer than expected on a given chip variant.
watchdog::WatchdogManager watchdog(15000);
// Copy the running app partition to new position if needed
if (new_app_part_index == -1) {
const esp_partition_t *running_app_part = nullptr;
@@ -324,7 +330,6 @@ OTAResponseTypes IDFOTABackend::update_partition_table() {
ESP_LOGD(TAG, "Copying running app from 0x%X to 0x%X (size: 0x%X)", running_app_part->address,
app_copy_target_part->address, running_app_size);
watchdog::WatchdogManager watchdog(15000);
err = esp_partition_copy(app_copy_target_part, 0, running_app_part, 0, running_app_size);
if (err != ESP_OK) {