Guru Meditation Error: Core 0 panic'ed

[whosnext]

We used the latest wipy-1.20.2.rc3-0.8.0-vanilla-squirrel.tar.gz firmware but we still get below errors with W01/Sim868

[1970-01-01 00:00.58] I [sim868] getLBS(500,10)
[1970-01-01 00:01.03] I [sim868] [5] lbs response line[1] = +CLBS: 0,4.747295,52.635064,550
[1970-01-01 00:01.04] I [sim868] getLBS()[5] = '52.635064;4.747295', lon=52.635064, lat=4.747
[1970-01-01 00:01.04] I [sim868] send_data('LBS;xxxxxxxxxxxxxx;100;52.635064;4.747295;1;v1.5
[1970-01-01 00:01.04] D [main] Send_LBS() LBS data is verzonden.
[1970-01-01 00:01.04] I [main] loop: 1
[1970-01-01 00:01.04] I [sim868] ___AudioInit(ATS0=3, ATL=9, ATM=9, CRSL=100, CLVL=100, CMIC=
[1970-01-01 00:01.04] I [sim868] autoAnswer(3)
Guru Meditation Error: Core 0 panic'ed (Cache disabled but cached memory region accessed)
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
[09:53, 2/19/2020] Iwan Brun: tot uiteindelijk:
[09:53, 2/19/2020] Iwan Brun: Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Memory dump at 0x4020612c: bad00bad bad00bad bad00bad
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Guru Meditation Error: Core 0 panic'ed (Double exception)
Guru Meditation Error: Core 0 panic'ed (Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
Guru Meditation Error: Core 0 panic'ed (IllegalInstruction). Exception was unhandled.
GC pool malloc failed!

Also with the own compiled version with your remarks we get this errorlog

[whosnext]

@andreas Nice, we have looked at this... so we think it is in the firmware as we don't have any issues with 1.18 r3 but only with 1.20.2 rc3 we got these Guru Meditation Error

[andreas]

Dear @whosnext,

interesting that you are using a SIM868, we are just unlocking support for the SIM800, see [1].

Sorry to hear you are still receiving core panics even with the most recent development firmware. May I humbly ask if you are able to share the code you are using?

With kind regards,
Andreas.

[1] https://community.hiveeyes.org/t/unlocking-and-improving-the-pythings-sim800-gprs-module-for-micropython/2978