Sleepy Zigbee + BLE End Device gets locked in zboss thread

[timl2415]

Running an nRF52840DK on the zigbee light switch multiprotocol ble sample as a sleepy end device seems to get stuck in the zboss thread. In this state the devkit seems to be stuck in the zboss thread while consuming about +9mA current when compared to idle. I cannot talk to the device with my coordinator sample and i can only recover via reset.

This is on the latest 2.6.0 version of the nRF Connect SDK

Setup:

- Added the following Kconfig debug options to the prj.conf:

CONFIG_SHELL=y

CONFIG_THREAD_NAME=y

CONFIG_THREAD_ANALYZER=y

CONFIG_THREAD_ANALYZER_AUTO=y

CONFIG_THREAD_ANALYZER_USE_PRINTK=y

 

- I also edited main.c to always enable sleepy end device behavior:

changed:

#if defined BUTTON_SLEEPY
if (dk_get_buttons() & BUTTON_SLEEPY) {
zigbee_configure_sleepy_behavior(true);
}
#endif

to:

zigbee_configure_sleepy_behavior(true);

- Built the zigbee light switch multiprotocol ble sample according to the readme:

west build samples/zigbee/light_switch -b nrf52840dk_nrf52840 -- -DOVERLAY_CONFIG='overlay-multiprotocol_ble.conf'

- Booted the sample and let it connect to my zigbee coordinator:

I: Joined network successfully on reboot signal (Extended PAN ID: 6e2edb8264bccd36, PAN ID: 0x33e7)

Then after waiting 10-30 minutes the thread analyzer would stop printing and I would lose shell. Stack trace from the debugger indicated the zboss thread was stuck waiting for a mutex:

This issue seems to be 100% reproducible.

[Elfving]

Hello Timothy,

Sorry about the wait. The Easter period is a public holiday in Norway.

I am looking into it.

Regards,

Elfving

[Sigurd Hellesvik]

Hi,

I will continue to help with this ticket.

To better understand what happens here, it would be good to see how the ZigBee traffic looks right before and during the "spin".

Can you capture a sniffer log and upload it here as a pcap file using Insert -> Image/video/file? See nRF Sniffer for 802.15.4 for how to set up and use our 802.15.4 sniffer.

Regards,
Sigurd Hellesvik