examples/gnrc_border_router: esp_wifi crashes on disconnect #14679
Description
Description
When operating as a border router with an esp_now client, the border router will crash after a while with what seems like a disconnect event that is not handled correctly.
Steps to reproduce the issue
Follow the steps described in RIOT-OS/Release-Specs#185:
-
flash the border router
make -C examples/gnrc_border_router BOARD=esp8266-esp-12x UPLINK=wifi WIFI_SSID='your_ssd' WIFI_PASS='your_password' PORT=/dev/ttyUSB0 flash term -
flash the
esp_nowclientmake -C examples/gnrc_networking BOARD=esp8266-esp-12x PORT=/dev/ttyUSB1 flash term
It seems like the client node is crucial for this bug to occur.
With the second node disconnected, the border router did not crash.
Expected results
The border router keeps operating continuously.
Actual results
After a while (~10 Minutes) the border router crashes and reboots.
2020-08-02 20:40:50,865 # scandone
2020-08-02 20:41:00,866 # scandone
2020-08-02 20:41:10,868 # scandone
2020-08-02 20:41:14,377 # LmacRxBlk:0
2020-08-02 20:41:15,378 # LmacRxBlk:0
2020-08-02 20:41:16,379 # LmacRxBlk:0
2020-08-02 20:41:17,380 # LmacRxBlk:0
2020-08-02 20:41:18,381 # LmacRxBlk:0
2020-08-02 20:41:19,162 # bcn_timout,ap_probe_send_start
2020-08-02 20:41:19,382 # LmacRxBlk:0
2020-08-02 20:41:20,383 # LmacRxBlk:0
2020-08-02 20:41:21,384 # LmacRxBlk:0
2020-08-02 20:41:21,666 # ap_probe_send_over, rest wifi status to disassoc
2020-08-02 20:41:21,669 # state: 5 -> 0 (100)
2020-08-02 20:41:21,669 # rm 0
2020-08-02 20:41:21,675 # WiFi disconnected from ssid beersperminute, reason 200 (BEACON_TIMEOUT)
2020-08-02 20:41:21,770 # EXCEPTION!! exccause=9 (LoadStoreAlignmentCause) @40228c38 excvaddr=40249fbb
2020-08-02 20:41:21,771 # processes:
2020-08-02 20:41:21,779 # pid | name | state Q | pri | stack ( used) ( free) | base addr | current
2020-08-02 20:41:21,787 # - | isr_stack | - - | - | 2048 ( 1092) ( 956) | 0x3ffe8410 | 0x3ffe8c10
2020-08-02 20:41:21,798 # 1 | ppT | bl rx _ | 2 | 3640 ( 1320) ( 2320) | 0x3fff7480 | 0x3fff8150
2020-08-02 20:41:21,806 # 2 | pmT | bl rx _ | 4 | 1080 ( 328) ( 752) | 0x3fff8300 | 0x3fff8600
2020-08-02 20:41:21,814 # 3 | rtT | bl mutex _ | 3 | 2104 ( 1356) ( 748) | 0x3fff8740 | 0x3fff8e80
2020-08-02 20:41:21,823 # 4 | esp_events | bl rx _ | 5 | 2104 ( 892) ( 1212) | 0x3fff95b0 | 0x3fff9c80
2020-08-02 20:41:21,831 # 5 | idle | pending Q | 31 | 1024 ( 236) ( 788) | 0x3ffef18c | 0x3ffef4b0
2020-08-02 20:41:21,839 # 6 | main | bl mutex _ | 15 | 3072 ( 1484) ( 1588) | 0x3ffef58c | 0x3ffeff40
2020-08-02 20:41:21,848 # 7 | 6lo | pending Q | 11 | 1024 ( 568) ( 456) | 0x3fff2d38 | 0x3fff2f30
2020-08-02 20:41:21,856 # 8 | ipv6 | pending Q | 12 | 1536 ( 800) ( 736) | 0x3fff05d0 | 0x3fff0980
2020-08-02 20:41:21,865 # 9 | udp | bl rx _ | 13 | 1024 ( 492) ( 532) | 0x3fff351c | 0x3fff3790
2020-08-02 20:41:21,873 # 10 | netif-esp-now | running Q | 10 | 2560 ( 948) ( 1612) | 0x3fff4124 | 0x3fff4930
2020-08-02 20:41:21,881 # 11 | netif-esp-wifi | bl rx _ | 9 | 1024 ( 932) ( 92) | 0x3fff4cf4 | 0x3fff4f40
2020-08-02 20:41:21,892 # 12 | dhcpv6-client | bl anyfl _ | 13 | 1024 ( 800) ( 224) | 0x3fff01cc | 0x3fff04a0
2020-08-02 20:41:21,898 # | SUM | | | 23264 (11248) (12016)
2020-08-02 20:41:21,898 #
2020-08-02 20:41:21,900 # *** RIOT kernel panic:
2020-08-02 20:41:21,901 # FAILED ASSERTION.
2020-08-02 20:41:21,901 #
2020-08-02 20:41:21,909 # pid | name | state Q | pri | stack ( used) ( free) | base addr | current
2020-08-02 20:41:21,917 # - | isr_stack | - - | - | 2048 ( 1236) ( 812) | 0x3ffe8410 | 0x3ffe8c10
2020-08-02 20:41:21,926 # 1 | ppT | bl rx _ | 2 | 3640 ( 1320) ( 2320) | 0x3fff7480 | 0x3fff8150
2020-08-02 20:41:21,937 # 2 | pmT | bl rx _ | 4 | 1080 ( 328) ( 752) | 0x3fff8300 | 0x3fff8600
2020-08-02 20:41:21,945 # 3 | rtT | bl mutex _ | 3 | 2104 ( 1356) ( 748) | 0x3fff8740 | 0x3fff8e80
2020-08-02 20:41:21,953 # 4 | esp_events | bl rx _ | 5 | 2104 ( 892) ( 1212) | 0x3fff95b0 | 0x3fff9c80
2020-08-02 20:41:21,962 # 5 | idle | pending Q | 31 | 1024 ( 236) ( 788) | 0x3ffef18c | 0x3ffef4b0
2020-08-02 20:41:21,970 # 6 | main | bl mutex _ | 15 | 3072 ( 1484) ( 1588) | 0x3ffef58c | 0x3ffeff40
2020-08-02 20:41:21,978 # 7 | 6lo | pending Q | 11 | 1024 ( 568) ( 456) | 0x3fff2d38 | 0x3fff2f30
2020-08-02 20:41:21,987 # 8 | ipv6 | pending Q | 12 | 1536 ( 800) ( 736) | 0x3fff05d0 | 0x3fff0980
2020-08-02 20:41:21,995 # 9 | udp | bl rx _ | 13 | 1024 ( 492) ( 532) | 0x3fff351c | 0x3fff3790
2020-08-02 20:41:22,004 # 10 | netif-esp-now | running Q | 10 | 2560 ( 948) ( 1612) | 0x3fff4124 | 0x3fff4930
2020-08-02 20:41:22,012 # 11 | netif-esp-wifi | bl rx _ | 9 | 1024 ( 932) ( 92) | 0x3fff4cf4 | 0x3fff4f40
2020-08-02 20:41:22,020 # 12 | dhcpv6-client | bl anyfl _ | 13 | 1024 ( 800) ( 224) | 0x3fff01cc | 0x3fff04a0
2020-08-02 20:41:22,029 # | SUM | | | 23264 (11392) (11872)
2020-08-02 20:41:22,029 #
2020-08-02 20:41:22,030 # *** halted.
0x40228c38 points to core/mutex.c:75 which is not very enlightening.
Versions
RIOT master