ncs-esb-ble-mpsl-demo hard faults on nRF5340

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

ovrebekk — Thu, 23 May 2024 13:14:49 GMT

Hi John

Quick update: Running with SPIN_VALIDATE disabled I am not seeing any issues or instabilities. Did you run some testing on your end?

It would be good to know why the validation fails in the first place, but for the time being I would recommend simply disabling this feature.

Best regards
Torbjørn

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

ovrebekk — Wed, 22 May 2024 12:31:59 GMT

Hi John

I set up a test and quickly ran into the same assert. The assert is caused by a check enabled when SPIN_VALIDATE is set. I will run another test with this test disabled to see what happens.

If you want to run a similar test simply add the following config to the netcore project:

CONFIG_SPIN_VALIDATE=n

Best regards
Torbjørn

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

ovrebekk — Tue, 21 May 2024 13:39:20 GMT

Hi John

Thanks for the info. I will set aside some time tomorrow morning to set up a test, and try to reproduce the error during the day. If you have made any more discoveries on your side that could be of interest please let me know.

Best regards
Torbjørn

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

jbreal — Thu, 16 May 2024 16:10:42 GMT

both sides are just a stock nRF5340DK, with a small whip antenna attached

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

ovrebekk — Thu, 16 May 2024 06:56:29 GMT

Hi John

What about the hardware? Are you using a normal devkit, or some other board?

Best regards
Torbjørn

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

jbreal — Wed, 15 May 2024 19:32:09 GMT

[00:41:01.386,718] <dbg> rpc_net: rpc_esb_event_send: evt send ok
[00:41:02.883,148] <inf> rpc_net: Send TX packet, data 0 0x69, len 8
[00:41:02.883,636] <inf> rpc_net: ESB TX success
[00:41:02.883,789] <dbg> rpc_net: rpc_esb_event_send: evt send ok
[00:41:04.383,819] <inf> rpc_net: Send TX packet, data 0 0x6a, len 8
[00:41:04.384,307] <inf> rpc_net: ESB TX success
[00:41:04.384,460] <dbg> rpc_net: rpc_esb_event_send: evt send ok
[00:41:05.884,490] <inf> rpc_net: Send TX packet, data 0 0x6b, len 8
ASSERTION FAIL @ WEST_TOPDIR/external/zephyr/include/zephyr/spinlock.h:136
[00:41:05.884,674] <err> os: ***** HARD FAULT *****
[00:41:05.884,704] <err> os: Fault escalation (see below)
[00:41:05.884,704] <err> os: ARCH_EXCEPT with reason 4

[00:41:05.884,735] <err> os: r0/a1: 0x00000004 r1/a2: 0x00000088 r2/a3: 0x00000002
[00:41:05.884,765] <err> os: r3/a4: 0x21002358 r12/ip: 0x00000010 r14/lr: 0x0102c7ad
[00:41:05.884,765] <err> os: xpsr: 0x4100001c
[00:41:05.884,765] <err> os: Faulting instruction address (r15/pc): 0x0103038c
[00:41:05.884,826] <err> os: >>> ZEPHYR FATAL ERROR 4: Kernel panic on CPU 0
[00:41:05.884,857] <err> os: Fault during interrupt handling

[00:41:05.884,887] <err> os: Current thread: 0x21003fc0 (unknown)
ÿ[00:00:00.000,488] <dbg> rpc_net: serialization_init: nRF RPC init begin
[00:00:00.101,074] <err> nrf_rpc_ipc: IPC endpoint bond timeout
[00:00:00.101,104] <err> NRF_RPC: Failed to initialize transport, err: -32
[00:00:01.101,226] <err> NRF_RPC: Not all groups are ready to use.
*** Booting nRF Connect SDK v3.5.99-ncs1-1 ***
[00:00:01.101,348] <inf> main: ESB BLE Multiprotocol Example - Netcore project
[00:00:01.101,409] <inf> bt_sdc_hci_driver: SoftDevice Controller build revision:
36 f0 e5 0e 87 68 48 fb 02 fd 9f 82 cc 32 e5 7b |6....hH. .....2.{
91 b1 5c ed |..\.
[00:00:01.101,806] <inf> bt_hci_raw: Bluetooth enabled in RAW mode
[00:00:01.102,050] <wrn> main: Change ESB_EVT_IRQ and ESB_EVT_IRQHandler in esb_peripherals.h to use SWI3 instead of SWI0!

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

jbreal — Wed, 15 May 2024 16:11:29 GMT

Default example, no changes except as noted regarding SWI3. I tried both a standard build and with debug optimizations, in an attempt to set a breakpoint, but I haven't been able to figure out how to make that happen yet. I will run it again this evening to get more output for you. Each time I've run it before, I failed to enable logging in the serial terminal, and then accidentally resized the terminal and lost my output before taking a screenshot.

RE: ncs-esb-ble-mpsl-demo hard faults on nRF5340

ovrebekk — Wed, 15 May 2024 11:18:32 GMT

Hi John

Are you just running the default example, without making any changes to the appcore or netcore projects?

Are you running the code on a standard nRF5340DK?

Do you not get any more logging output from the netcore when the crash occurs?

Best regards
Torbjørn