Matter Error: "Error retrieving data from clusterId: 0xxxx, err = b" when retrieving data from clusters

[taoyinzhou]

I'm developing a Matter windowcovering project using the nrf52840, ncs v2.2.0, and OTBR hompod mini modules. After completing the network configuration, I encounter an error: "Error retrieving data from clusterId: 0xxxx, err = b" when retrieving data from clusters. The error code indicates "out of memory". I've tried increasing the heap size to 14000, but the error persists. The two configuration items I've modified are:

CONFIG_HEAP_MEM_POOL_SIZE=14336
CONFIG_NEWLIB_LIBC_MIN_REQUIRED_HEAP_SIZE=14336

How can I modify these settings to eliminate this error?

[Marte Myrvold]

Hi,

Please upload the full application log from the device as text by either copying it and using Insert > Code or save it to a text file and use Insert > Image/video/file.

How much of the memory does your application use? You should be able to see this at the bottom of the build log when building the application, similar to this:

Best regards,
Marte

[taoyinzhou]

Hi,

This is the log of my device from the start of the network configuration. After successfully configuring the network with the HomePod Mini, I immediately saw an error message.

chip error(err b).txt

This is the memory information printed after compilation.

Kind regards and thanks,

taoyinzhou

[Marte Myrvold]

Hi,

Your application is using 87.59% of the RAM, so it is likely that you are running out of memory. Please try reducing the RAM usage by following the guide in Memory footprint optimization.

Best regards,
Marte