masayuki2009 commented on PR #8926:
URL: https://github.com/apache/nuttx/pull/8926#issuecomment-1490256154
@tmedicci
I confirmed that the alarm example crashes on qemu-esp-develop-20220802
without this PR.
```
/home/ishikawa/opensource/QEMU/qemu-esp-develop-20220802/build/qemu-system-xtensa
-nographic -machine esp32 -smp 2 -drive
file=./nuttx/nuttx.merged.bin,if=mtd,format=raw
==2905475==WARNING: ASan doesn't fully support makecontext/swapcontext
functions and may produce false positives in some cases!
Adding SPI flash device
ets Jul 29 2019 12:21:46
rst:0x1 (POWERON_RESET),boot:0x12 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:6604
ho 0 tail 12 room 4
load:0x40078000,len:14780
load:0x40080400,len:3792
entry 0x40080694
I (1013) boot: ESP-IDF v4.4 2nd stage bootloader
I (1026) boot: compile time 19:32:08
I (1047) boot: chip revision: 0
I (1061) boot.esp32: SPI Speed : 40MHz
I (1063) boot.esp32: SPI Mode : DIO
I (1064) boot.esp32: SPI Flash Size : 4MB
I (1088) boot: Enabling RNG early entropy source...
I (1120) boot: Partition Table:
I (1121) boot: ## Label Usage Type ST Offset Length
I (1123) boot: 0 factory factory app 00 00 00010000 00100000
I (1143) boot: End of partition table
I (1162) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=09538h (
38200) map
I (1250) esp_image: segment 1: paddr=00019560 vaddr=3ffb3510 size=00260h (
608) load
I (1290) esp_image: segment 2: paddr=000197c8 vaddr=40080000 size=01e3ch (
7740) load
I (1339) esp_image: segment 3: paddr=0001b60c vaddr=50000000 size=00018h (
24) load
I (1374) esp_image: segment 4: paddr=0001b62c vaddr=00000000 size=049ech (
18924)
I (1433) esp_image: segment 5: paddr=00020020 vaddr=400d0020 size=1aab0h
(109232) map
I (1612) boot: Loaded app from partition at offset 0x10000
I (1614) boot: Disabling RNG early entropy source...
NuttShell (NSH) NuttX-12.0.0
nsh> uname -a
NuttX 12.0.0 f468371332-dirty Mar 30 2023 21:50:53 xtensa esp32-devkitc
nsh> ps
PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
0 0 0 0 FIFO Kthread N-- Assigned 0000000000000000
003040 000792 26.0% CPU0 IDLE
1 1 1 0 FIFO Kthread N-- Running 0000000000000000
003032 000432 14.2% CPU1 IDLE
2 2 0 100 RR Task --- Running 0000000000000000
003000 001656 55.2% nsh_main
3 3 --- 223 RR Kthread --- Waiting Semaphore 0000000000000000
001984 000360 18.1% rt_timer
nsh> free
total used free largest nused nfree
Umem: 313472 15304 298168 175840 52 4
nsh> alarm 2
alarm_daemon started
alarm_daemon: Running
Opening /dev/rtc0
Alarm 0 set in 2 seconds
nsh> [CPU1] xtensa_panic: Unhandled Exception 1 task: alarm_daemon
[CPU1] _assert: Current Version: NuttX 12.0.0 f468371332-dirty Mar 30 2023
21:50:53 xtensa
[CPU1] _assert: Assertion failed panic: at file: common/xtensa_assert.c:84
task(CPU1): alarm_daemon 0x400e2590
[CPU1] up_dump_register: PC: 400803c0 PS: 00060430
[CPU1] up_dump_register: A0: 800d81ab A1: 3ffe22f8 A2: 00060430
A3: 3ffe1900
[CPU1] up_dump_register: A4: 00000001 A5: 3ffb03fa A6: 00000000
A7: 3ffe2410
[CPU1] up_dump_register: A8: 80081d65 A9: 3ffe22d8 A10: 00000000
A11: 00000002
[CPU1] up_dump_register: A12: 3ffb03fc A13: 3ffb0400 A14: 00060023
A15: 00060820
[CPU1] up_dump_register: SAR: 0000001f CAUSE: 00000000 VADDR: 00000000
[CPU1] up_dump_register: LBEG: 400d4aa8 LEND: 400d4abf LCNT: 00000000
```
However, it seems that the alarm daemon does not receive any events with
this PR.
```
NuttShell (NSH) NuttX-10.3.0
nsh> uname -a
NuttX 10.3.0 b2c8be28b1-dirty Mar 30 2023 21:42:55 xtensa esp32-devkitc
nsh> ps
PID GROUP CPU PRI POLICY TYPE NPX STATE EVENT SIGMASK
STACK USED FILLED COMMAND
0 0 0 0 FIFO Kthread N-- Assigned 0000000000000000
003040 000768 25.2% CPU0 IDLE
1 1 1 0 FIFO Kthread N-- Running 0000000000000000
003032 000432 14.2% CPU1 IDLE
2 2 0 100 RR Task --- Running 0000000000000000
003000 001896 63.2% nsh_main
3 3 --- 223 RR Kthread --- Waiting Semaphore 0000000000000000
001984 000360 18.1% rt_timer
nsh> free
total used free largest nused nfree
Umem: 313472 15304 298168 175840 52 4
nsh> alarm 2
alarm_daemon started
alarm_daemon: Running
Opening /dev/rtc0
Alarm 0 set in 2 seconds
nsh>
```
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