Need to resolve "ERROR hal_enter_bmps response failed err=1"

Products Support DragonBoard410c
,
#1

Hi @Loic,

We are working on a product based on APQ8016E and using WCN3660B. We are working on Linaro-20.07 latest release.

Issue description:
After connecting the device to some Network, we see some strange logs with specific router when trying to send pings.
We see a lot of these logs:
wcn36xx: ERROR hal_enter_bmps response failed err=1

Logs:
[ 241.153596] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 241.153647] wcn36xx: ERROR Can not enter BMPS!
[ 241.573324] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 241.573373] wcn36xx: ERROR Can not enter BMPS!
[ 241.992914] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 241.992964] wcn36xx: ERROR Can not enter BMPS!
[ 242.413191] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 242.413241] wcn36xx: ERROR Can not enter BMPS!
[ 242.832967] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 242.833016] wcn36xx: ERROR Can not enter BMPS!
[ 243.253031] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 243.253079] wcn36xx: ERROR Can not enter BMPS!
[ 243.672885] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 243.672935] wcn36xx: ERROR Can not enter BMPS!
[ 244.093036] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 244.093084] wcn36xx: ERROR Can not enter BMPS!
[ 244.513146] wcn36xx: ERROR hal_enter_bmps response failed err=1
[ 244.513195] wcn36xx: ERROR Can not enter BMPS!
[ 244.932960] wcn36xx: ERROR hal_enter_bmps response failed err=1

Could you check how can we fix that ?
It’s very urgent for us.

Regards,
Parth Y Shah

#2

I think this error can be ignored, this can happen when host try to move controller in power-saving mode, while controller is receiving data. If the ping reply is in resonance with the power-save timer, I assume that can cause this issue. You should also check in air capture that null PS packet are well acked by the AP.