Frequent Fatal exception 29

[awrede]

I get very frequent crashes (multiple per minute) with the above exception:

08-18 08:27:52: epc1=0x40292395, epc2=0x00000000, epc3=0x00000000, excvaddr=0x00000000, depc=0x00000000
08-18 08:27:52: 
08-18 08:27:52:  ets Jan  8 2013,rst cause:2, boot mode:(3,7)
08-18 08:27:52: 
08-18 08:27:52: load 0x40100000, len 1456, room 16 
08-18 08:27:52: tail 0
08-18 08:27:52: chksum 0xa2
08-18 08:27:52: load 0x3ffe8000, len 776, room 8 
08-18 08:27:52: tail 0
08-18 08:27:52: chksum 0xc3
08-18 08:27:52: load 0x3ffe8310, len 552, room 8 
08-18 08:27:52: tail 0
08-18 08:27:52: chksum 0xb8
08-18 08:27:52: csum 0xb8
08-18 08:27:52: 
08-18 08:27:52: 2nd boot version : 1.5
08-18 08:27:52:   SPI Speed      : 80MHz
08-18 08:27:52:   SPI Mode       : QIO
08-18 08:27:52:   SPI Flash Size & Map: 32Mbit(512KB+512KB)
08-18 08:27:52: jump to run user2 @ 81000
08-18 08:27:52: 
08-18 08:27:52: don't use rtc mem data

They are preceded by

08-18 08:27:52:   ********* got serial to process 44 **  |546009e61565|-87|1|0|09ffe0000af0ca830ab2|
08-18 08:27:52:   ********* got serial to process 11 **  010020100|
08-18 08:27:52:  bad mac, not 12, 9, 010020100
08-18 08:27:52: bad data 
08-18 08:27:52: bad rssi 
08-18 08:27:52: 
08-18 08:27:52: bad scanresp 
08-18 08:27:52: bad type 
08-18 08:27:52: ********* got serial to process 86 **  |546009e60ed9|-96|0|2|02010603039ffe17169ffe0000000000000000000000000000000000000000|
08-18 08:27:52:  config COUNT RESET
08-18 08:27:52: ********* got serial to process 54 **  |0e2c07b75918|-95|0|3|02011b0bff4c0009060302c0a802c1|
08-18 08:27:52:  ********* got serial to process 61 **  10603039ffe17169ffe0000000000000000000000000000000000000000|
08-18 08:27:52:  bad mac, not 12, 59, 10603039ffe17169ffe0000000000000000000000000000000000000000
08-18 08:27:52: bad data 
08-18 08:27:52: bad rssi 
08-18 08:27:52: 
08-18 08:27:52: bad scanresp 
08-18 08:27:52: bad type 
08-18 08:27:52: ********* got serial to process 21 **  9ffe0000ad3ca8367e1|
08-18 08:27:52:  bad mac, not 12, 19, 9ffe0000ad3ca8367e1
08-18 08:27:52: bad data 
08-18 08:27:52: bad rssi 
08-18 08:27:52: 
08-18 08:27:52: bad scanresp 
08-18 08:27:52: bad type 
08-18 08:27:52: ********* got serial to process 9 **  0020100|
08-18 08:27:52:  bad mac, not 12, 7, 0020100
08-18 08:27:52: bad data 
08-18 08:27:52: bad rssi 
08-18 08:27:52: 
08-18 08:27:52: bad scanresp 
08-18 08:27:52: bad type 
08-18 08:27:52: ********* got serial to process 86 **  |546009f3e24b|-94|0|2|02010603039ffe17169ffe0000000000000000000000000000000000000000|
08-18 08:27:52: 

The startup looks like this:

08-18 08:27:46:    311> ** version 12
08-18 08:27:46:    312> Flash config restore ok
08-18 08:27:46:    312> Wifi init, mode=STA
08-18 08:27:46:    312> Wifi Soft-AP parameters change: fail
08-18 08:27:46:    316> Wifi uses DHCP, hostname=whappy1
08-18 08:27:46:    320> "ip": "0.0.0.0"
08-18 08:27:46:    322> "netmask": "0.0.0.0"
08-18 08:27:46:    324> "gateway": "0.0.0.0"
08-18 08:27:46:    327> "hostname": "whappy1"
08-18 08:27:46:    330> sleep enable,type: 2
08-18 08:27:46:    332> Reset cause: 2=exception
08-18 08:27:46:    335> exccause=29 epc1=0x40292395 epc2=0x0 epc3=0x0 excvaddr=0x0 depc=0x0
08-18 08:27:46:    342> Flash map 4MB
08-18 08:27:46: Ready

[nemik]

Multiple per minute is very, very frequent. Can you please tell me more about the environment it's running in?

• what firmware version are you running?
• do you see any messages posting to MQTT?
• how many beacons are around? what type? how often are they broadcasting?
• how many Happy Bubbles detectors do you have? is this happening on all of them or just one?

[awrede]

• The problem occurs with firmware version 11 and 12.
• I see lots of messages published on MQTT, from more that dozen different mac addresses, at a rate of about 200 messages/minute.
• I have 4 of your Bluetooth LE beacons, 2 of which are in range. The rest of the messages I assume come from other devices nearby?
• only one Happy Bubbles detectors

[awrede]

To clarify, the 200 messages/minute are mostly to the .../raw/.. topic, the .../ibeacon/... topic get only a couple per minute.