alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-14 06:04:19 +00:00
Code Issues Packages Projects Releases Wiki Activity

Fix interrupt watchdog caused by livelock

Browse Source
This commit is contained in:
Li Shuai
2020-03-13 14:11:00 +08:00
committed by maojianxin
parent ca51072461
commit a80cf2dc69
6 changed files with 198 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
components/esp32/panic.c
View File

@@ -238,15 +238,24 @@ void panicHandler(XtExcFrame *frame)
}
#if !CONFIG_FREERTOS_UNICORE
/*
* When the real Interrupt watchdog occurs (_l4_intr_livelock_counter >= _l4_intr_livelock_max),
* do not clear the wdt interrupt, help the App cpu (Core 1) map tg1 1st stage timeout
* interrupt, trigger the App cpu (Core 1) to respond to the wdt interrupt.
*/
if (core_id == PRO_CPU_NUM) {
intr_matrix_set(APP_CPU_NUM, ETS_TG1_WDT_LEVEL_INTR_SOURCE, ETS_T1_WDT_INUM);
}
//Save frame for other core.
if ((frame->exccause == PANIC_RSN_INTWDT_CPU0 && core_id == 1) || (frame->exccause == PANIC_RSN_INTWDT_CPU1 && core_id == 0)) {
other_core_frame = frame;
while (1);
}
//The core which triggers the interrupt watchdog will delay 1 us, so the other core can save its frame.
//The core which triggers the interrupt watchdog will delay 500 us, so the other core can save its frame.
if (frame->exccause == PANIC_RSN_INTWDT_CPU0 || frame->exccause == PANIC_RSN_INTWDT_CPU1) {
ets_delay_us(1);
ets_delay_us(500);
}
if (frame->exccause == PANIC_RSN_CACHEERR && esp_cache_err_get_cpuid() != core_id) {