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fix(esp_hw_support): fix deepsleep deadlock if threadsafe claim is not enabled

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wuzhenghui
2026-07-22 15:26:31 +08:00
parent e8a5192a18
commit b697c31f40
1 changed files with 11 additions and 0 deletions
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components/esp_hw_support/sleep_modes.c
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@@ -1271,7 +1271,18 @@ static esp_err_t FORCE_IRAM_ATTR deep_sleep_start(bool allow_sleep_rejection)
* to RTC memory while we calculate RTC memory CRC.
*/
esp_os_enter_critical(&s_config.lock);
#if CONFIG_FREERTOS_PORT_THREAD_SAFE_CLAIM
esp_ipc_isr_stall_other_cpu();
#else
/* Retry with the lock held on success. Drop the lock on failure so the other
* CPU can leave its critical section (and to avoid deadlock on s_config.lock).
*/
while (esp_ipc_isr_stall_other_cpu_safe() != ESP_OK) {
esp_os_exit_critical(&s_config.lock);
esp_rom_delay_us(portTICK_PERIOD_MS * 1000 / 10);
esp_os_enter_critical(&s_config.lock);
}
#endif
esp_ipc_isr_stall_pause();
/* Another core is stalled and interrupts are disabled, so we can safely claim the thread-safe
critical section to avoid deadlocks and fastup the sleep process.