BLE advertising cannot be stop without hardware crash

[iznow]

Hye,

using the nrf 2.4.2 toolchain

i have an unsolvable problem about ble on a nrf52840 based project with imu, i2s strip led, buttons, spi speaker...

i have a classic ble enable process at startup after everthing else initialized (i try disabling all around too... same)

i get a systematic crash on advertising stop with bt_le_adv_stop();

i tried a lot of things about irq conflict or configs...

i tried to put in thread allowing to start and stop advertising few times but a crash anyway 

it just reboot with HARDWARE reset cause (12).

relevant config is for now:

CONFIG_MAIN_STACK_SIZE=8192

CONFIG_HEAP_MEM_POOL_SIZE=16384

CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=8192

CONFIG_BT=y

CONFIG_BT_PERIPHERAL=y

CONFIG_BT_DEVICE_NAME="XXX"

CONFIG_BT_GATT_CLIENT=y

#CONFIG_BT_CTLR_ADVANCED_FEATURES=y

CONFIG_BT_EXT_ADV=y

CONFIG_ZERO_LATENCY_IRQS=y

CONFIG_BT_LL_SW_SPLIT=y

CONFIG_BT_CTLR_ULL_HIGH_PRIO=2

CONFIG_BT_MAX_CONN=1

CONFIG_ISR_STACK_SIZE=1024

CONFIG_BT_DIS=y

CONFIG_BT_DIS_FW_REV=y

CONFIG_BT_DIS_MODEL="xxxxxx"

CONFIG_BT_DIS_MANUF="xxxxxx"

CONFIG_BT_DIS_PNP=n

CONFIG_BT_SETTINGS=y

CONFIG_BT_GATT_CACHING=n

CONFIG_BT_DIS_SETTINGS=y

CONFIG_BT_THROUGHPUT=y

CONFIG_BT_GATT_DM=y

CONFIG_BT_USER_DATA_LEN_UPDATE=y

CONFIG_BT_USER_PHY_UPDATE=y

CONFIG_BT_GAP_AUTO_UPDATE_CONN_PARAMS=n

CONFIG_BT_BUF_ACL_RX_SIZE=502

CONFIG_BT_ATT_PREPARE_COUNT=2

CONFIG_BT_L2CAP_TX_MTU=498

also the project use FOTA:

CONFIG_MCUMGR=y

CONFIG_IMG_MANAGER=y

CONFIG_MCUMGR_GRP_IMG=y

CONFIG_MCUMGR_GRP_OS=y

CONFIG_MCUMGR_GRP_STAT=y

CONFIG_MCUMGR_GRP_OS_TASKSTAT=y

CONFIG_BOOTLOADER_MCUBOOT=y

CONFIG_MCUBOOT_GENERATE_CONFIRMED_IMAGE=y

CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU=y

CONFIG_NCS_SAMPLE_MCUMGR_BT_OTA_DFU_SPEEDUP=y

CONFIG_DISABLE_FLASH_PATCH=y

thanks

 

[Edvin]

Hello,

I can't see anything from the information you have posted what the error might be. Does the log say anything? What value does bt_le_adv_stop() return?

Best regards,

Edvin

[iznow]

bt_le_adv_stop() do not return precisely because it break inside (see code in the screenshot). 
no exception intercepted by debugger ... vscode or ozone the same... logs just stop and the reboot happend with reboot cause 12 (HARDWARE_RESET). i understand there is not much info but it's a very reproducable case on my side and very problematic. thanks.

[Edvin]

Your screenshots doesn't say anything about a crash. Please note that if you put breakpoints in the code after the BLE stack has started, you can break there to monitor parameters, but you need to restart the application after that. It is not able to continue the execution, because it has missed too many timing critical events. 

Does the log say anything (if you don't set a breakpoint)? 

Best regards,

Edvin

[Edvin]

And is this something you can replicate on a DK? Preferably without the external sensors attached.

BR,
Edvin

[iznow]

i agree, the screenshot simply show what happend on a debug session free of breakpoints when i try to stop advertising on the main thread. The debugger stop itself without any exception i can show, but stop anyway. in vscode it stop too but line 1399. i will try in the DK.