Notable changes from V19 and V22?

[Tangerino]

I've been using MP since V18 with a 6K (full async, no threads) lines of code using:

• Ethernet
• Modem
• BLE
• 2 Serial ports
• GPIO
• ESP with SPIRAM

I decided to update the current V19 to V1.22.2 and the code just 'freeze' for few seconds and come back in an erratic way that I can't explain.
The same code runs well in production.

Is there any important changes that I've missed on the MP libraries usage?
Is anyone getting the same behavior?

Sometime I miss some application notes which is much more than sample simple code.

I left the device running for hours and I just got a panic message but I'm not able to decode it such as:

Guru Meditation Error: Core  1 panic'ed (Cache disabled but cached memory region accessed). 

Core  1 register dump:
PC      : 0x401ec630  PS      : 0x00060035  A0      : 0x800901c6  A1      : 0x3ffc03a0  
A2      : 0x3fff160c  A3      : 0x3fff1228  A4      : 0x00000004  A5      : 0x3ffc03e8  
A6      : 0x00000001  A7      : 0x3fff16f0  A8      : 0x8009a475  A9      : 0x3ffc0380  
A10     : 0x3fff160c  A11     : 0x3fff3e4d  A12     : 0x3fff3e51  A13     : 0x3fff3e4d  
A14     : 0x007be740  A15     : 0x00060023  SAR     : 0x0000001d  EXCCAUSE: 0x00000007  
EXCVADDR: 0x00000000  LBEG    : 0x40097370  LEND    : 0x40097383  LCOUNT  : 0x00000000  


Backtrace: 0x401ec62d:0x3ffc03a0 0x400901c3:0x3ffc03c0 0x40083061:0x3ffc0430 0x400826f1:0x3ffd5f30 0x4009ba67:0x3ffd5f50 0x40091359:0x3ffd5f70 0x40091418:0x3ffd5f90 0x400923e7:0x3ffd5fc0 0x400923ef:0x3ffd5fe0 0x400965c1:0x3ffd6000 0x40091f5a:0x3ffd6020 0x4014921d:0x3ffd6060 0x40110824:0x3ffd6090 0x400ddeb6:0x3ffd60c0 0x400e4481:0x3ffd60f0 0x400e4559:0x3ffd6110 0x400ee426:0x3ffd6130 0x400eed1d:0x3ffd6160 0x400f1cf2:0x3ffd6180 0x400f1d6b:0x3ffd61c0 0x400f1e36:0x3ffd6210 0x400f29ba:0x3ffd6240 0x400f5271:0x3ffd62a0 0x400ef3e4:0x3ffd62d0 0x400ddeb6:0x3ffd62f0 0x400e4481:0x3ffd6320 0x400e4559:0x3ffd6340 0x400edd29:0x3ffd6360 0x400ee146:0x3ffd6390 0x400ddeb6:0x3ffd63c0 0x400e4481:0x3ffd63f0 0x400e4559:0x3ffd6410 0x400861e1:0x3ffd6430 0x400de296:0x3ffd64d0 0x400e4657:0x3ffd64f0 0x400863b5:0x3ffd6520 0x400de296:0x3ffd65c0 0x400e4657:0x3ffd65e0 0x400863b5:0x3ffd6610 0x400de296:0x3ffd66b0 0x400e4657:0x3ffd66d0 0x400863b5:0x3ffd6700 0x400de296:0x3ffd67a0 0x400e4657:0x3ffd67c0 0x400863b5:0x3ffd67f0 0x400de296:0x3ffd6890 0x400de2df:0x3ffd68b0 0x400de346:0x3ffd68e0 0x400dde3e:0x3ffd6900 0x400e4481:0x3ffd6920 0x400e4559:0x3ffd6940 0x400861e1:0x3ffd6960 0x400ddf3c:0x3ffd6a00 0x400e4481:0x3ffd6a30 0x40086139:0x3ffd6a50 0x400ddf3c:0x3ffd6af0 0x400e4481:0x3ffd6b40 0x400e4559:0x3ffd6b60 0x400861e1:0x3ffd6b80 0x400ddf3c:0x3ffd6c20 0x400e4481:0x3ffd6c50 0x40086139:0x3ffd6c70 0x400ddf3c:0x3ffd6d10 0x400e4481:0x3ffd6d70 0x400e4496:0x3ffd6d90 0x400f169a:0x3ffd6db0 0x400f1a85:0x3ffd6e40 0x400f1af2:0x3ffd6e60 0x400d798d:0x3ffd6e80




ELF file SHA256: 83ca933c29f0205a

Rebooting...
ets Jul 29 2019 12:21:46

rst:0x3 (SW_RESET),boot:0x1b (SPI_FAST_FLASH_BOOT)
configsip: 271414342, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:4728
load:0x40078000,len:14888
load:0x40080400,len:3368
entry 0x400805cc

Any help would be very appreciated.

[jimmo]

I just got a panic message but I'm not able to decode it such as:

@Tangerino If you have the .elf or .map file you can decode the backtrace in a few different ways. Are you using an official binary from micropython.org (we provide both .elf and .map files for each build) or one you built yourself?

[Tangerino]

The official one

[Tangerino]

I tried also 1.23.0-preview, the panic also happen.
Using v1.19 is fine.
I saw there was some tiny issue with WiFi, but not sure if anything big has changed

[andrewleech]

The esp IDF had been upgraded from 4.x to 5.0 in this time, Espressif made huge changes in this jump so there was quite a lot of breaking changes needed.

[Tangerino]

Just to be 200% sure, here is the device running for while in V1.19

And here I downloaded the official V1.22.2 and in few seconds I got

Guru Meditation Error: Core  1 panic'ed (Cache disabled but cached memory region accessed). 

Core  1 register dump:
PC      : 0x401ec634  PS      : 0x00060035  A0      : 0x800901c6  A1      : 0x3ffc03a0  
A2      : 0x3fffa4b8  A3      : 0x3fff057c  A4      : 0x00000006  A5      : 0x3ffc03e8  
A6      : 0x00000001  A7      : 0x3fffa59c  A8      : 0x8009a475  A9      : 0x3ffc0380  
A10     : 0x3fffa4b8  A11     : 0x3fffa3e4  A12     : 0x3fffa3ea  A13     : 0x3fffa3e4  
A14     : 0xfffffff7  A15     : 0x00060023  SAR     : 0x00000018  EXCCAUSE: 0x00000007  
EXCVADDR: 0x00000000  LBEG    : 0x400973d4  LEND    : 0x400973f0  LCOUNT  : 0xffffffff  


Backtrace: 0x401ec631:0x3ffc03a0 0x400901c3:0x3ffc03c0 0x40083061:0x3ffc0430 0x4009c54b:0x3ffd5f20 0x4009c38e:0x3ffd5f40 0x4009f186:0x3ffd5f60 0x40091f76:0x3ffd5fe0 0x40149221:0x3ffd6020 0x40110824:0x3ffd6050 0x400ddeb6:0x3ffd6080 0x400e4481:0x3ffd60b0 0x400e4559:0x3ffd60d0 0x400ee426:0x3ffd60f0 0x400eed1d:0x3ffd6120 0x400f1cf2:0x3ffd6140 0x400f2456:0x3ffd6180 0x400f29f2:0x3ffd6210 0x400f5271:0x3ffd6270 0x400ef3e4:0x3ffd62a0 0x400ddeb6:0x3ffd62c0 0x400e4481:0x3ffd62f0 0x400e4559:0x3ffd6310 0x400edd29:0x3ffd6330 0x400ee146:0x3ffd6360 0x400ddeb6:0x3ffd6390 0x400e4481:0x3ffd63c0 0x400e4559:0x3ffd63e0 0x400861e1:0x3ffd6400 0x400de296:0x3ffd64a0 0x400e4657:0x3ffd64c0 0x400863b5:0x3ffd64f0 0x400de296:0x3ffd6590 0x400e4657:0x3ffd65b0 0x400863b5:0x3ffd65e0 0x400de296:0x3ffd6680 0x400e4657:0x3ffd66a0 0x400863b5:0x3ffd66d0 0x400de296:0x3ffd6770 0x400e4657:0x3ffd6790 0x400863b5:0x3ffd67c0 0x400de296:0x3ffd6860 0x400de2df:0x3ffd6880 0x400de346:0x3ffd68b0 0x400dde3e:0x3ffd68d0 0x400e4481:0x3ffd68f0 0x400e4559:0x3ffd6910 0x400861e1:0x3ffd6930 0x400ddf3c:0x3ffd69d0 0x400e4481:0x3ffd6a00 0x40086139:0x3ffd6a20 0x400ddf3c:0x3ffd6ac0 0x400e4481:0x3ffd6b10 0x400e4559:0x3ffd6b30 0x400861e1:0x3ffd6b50 0x400ddf3c:0x3ffd6bf0 0x400e4481:0x3ffd6c20 0x40086139:0x3ffd6c40 0x400ddf3c:0x3ffd6ce0 0x400e4481:0x3ffd6d40 0x400e4496:0x3ffd6d60 0x400f169a:0x3ffd6d80 0x400f1a85:0x3ffd6e10 0x400f1af2:0x3ffd6e30 0x400d798d:0x3ffd6e50

[jimmo]

Closing this -- see ongoing discussion in #14005