[Platform] M5Stack: No response to Sigma3, Failed to post event to CHIP Platform event queue

[kpark-apple]

Reproduction steps

1. Commission M5.
2. Add another fabric over CASE of the first commissioned fabric
3. Open a new CASE session over the new fabric
4. Complete commissioning of the new fabric

Platform

esp32

Platform Version(s)

No response

Type

Manually tested with SDK

(Optional) If manually tested please explain why this is only manually tested

The steps above were exercised.

Anything else?

On M5 log, there were lots of Failed to post event to CHIP Platform event queue messages and one after receiving the Sigma3 message as well. So suspecting resource issue.

I (59199) chip[EM]: <<< [E:13002r S:0 M:38815149 (Ack:13084043)] (U) Msg TX to 0:0000000000000000 [0000] --- Type 0000:10 (SecureChannel:StandaloneAck)
I (59219) chip[IN]: (U) Sending msg 38815149 to IP address 'UDP:[FE80::18DD:660:1490:E11A%st1]:51277'
I (59219) chip[SC]: Received Sigma3 msg
E (59229) chip[SC]: The device does not support GetClock_RealTimeMS() API: 6c.  Falling back to Last Known Good UTC Time
E (60179) chip[DL]: Failed to post event to CHIP Platform event queue
E (60179) chip[CSL]: Failed to queue CHIP System Layer lambda event: 1000000
E (60199) chip[DL]: Failed to post event to CHIP Platform event queue
E (60199) chip[CSL]: Failed to queue CHIP System Layer lambda event: 1000000
...
I (75569) chip[FS]: Fail-safe timer expired
E (75569) chip[SVR]: Failsafe timer expired
E (75569) chip[SVR]: Commissioning failed (attempt 1): 32

M5_pairing_failed_accessory_log_21A220a.txt

[bzbarsky-apple]

@kpark-apple Which SHA is the M5 using? Is it something after 77e39a6?

This could also be similar to #25833 (note the lower-memory non-default configuration file that was added in #25935), and is likely the same as #24418 and #23258

[shah-kartik]

The SHA used here was
0f1fc1b

[bzbarsky-apple]

OK, so that's after 77e39a6

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs.

[dhrishi]

The queue size has been increased to from 25 to 40: https://github.com/project-chip/connectedhomeip/blob/master/config/esp32/components/chip/Kconfig#L385