Having some Bearssl crash could be because of some low ram i think

[ashkr1]

I am having a crash after successfully connection when trying to create document in firestore database.

I have already added PIO_FRAMEWORK_ARDUINO_MMU_CACHE16_IRAM48_SECHEAP_SHARED in .ini file in platformio.

0x402108cd in BearSSL::WiFiClientSecureCtx::_run_until(unsigned int, bool) at ??:?
0x402328d4 in br_ssl_engine_closed at /home/earle/src/esp-quick-toolchain/arduino/tools/sdk/ssl/bearssl/src/inner.h:2211
 (inlined by) jump_handshake at /home/earle/src/esp-quick-toolchain/arduino/tools/sdk/ssl/bearssl/src/ssl/ssl_engine.c:1081
0x40233a2c in br_ssl_hs_client_run at /home/earle/src/esp-quick-toolchain/arduino/tools/sdk/ssl/bearssl/src/ssl/ssl_hs_client.c:913
0x40210a14 in BearSSL::WiFiClientSecureCtx::_wait_for_handshake() at ??:?
0x40210ceb in BearSSL::WiFiClientSecureCtx::_connectSSL(char const*) at ??:?
0x40260000 in pbuf_free at ??:?
0x40100c6d in umm_malloc_core at umm_malloc.cpp:?
0x4022d3b4 in ip4_output_if_opt_src at /local/users/gauchard/arduino/arduino_esp8266/origin/tools/sdk/lwip2/builder/lwip2-src/src/core/ipv4/ip4.c:1765
0x4026b55f in etharp_output at ??:?
0x401010f0 in umm_poison_malloc at ??:?
0x4022d41c in ip4_output_if_opt at /local/users/gauchard/arduino/arduino_esp8266/origin/tools/sdk/lwip2/builder/lwip2-src/src/core/ipv4/ip4.c:1577
0x40224ca5 in mem_malloc at /local/users/gauchard/arduino/arduino_esp8266/origin/tools/sdk/lwip2/builder/lwip2-src/src/core/mem.c:210
0x4022d442 in ip4_output_if at /local/users/gauchard/arduino/arduino_esp8266/origin/tools/sdk/lwip2/builder/lwip2-src/src/core/ipv4/ip4.c:1550
0x4022e383 in ip_chksum_pseudo at /local/users/gauchard/arduino/arduino_esp8266/origin/tools/sdk/lwip2/builder/lwip2-src/src/core/inet_chksum.c:395
0x401061c1 in ets_timer_arm_new at ??:?
0x40215b98 in esp_suspend at ??:?
0x40215ce9 in __esp_delay at ??:?
0x40215d5f in esp_try_delay(unsigned int, unsigned int, unsigned int) at ??:?
0x40215d5f in esp_try_delay(unsigned int, unsigned int, unsigned int) at ??:?
0x4020f746 in WiFiClient::connect(IPAddress, unsigned short) at ??:?
0x40100e6c in get_unpoisoned_check_neighbors at umm_malloc.cpp:?
0x40210dcb in BearSSL::WiFiClientSecureCtx::connect(char const*, unsigned short) at ??:?
0x40218de8 in sqrt32 at ??:?
0x40218de8 in sqrt32 at ??:?
0x40208a51 in SlotManager::connect(async_data*, char const*, unsigned short) at ??:?
0x4010102a in umm_free at ??:?
0x4020ace5 in AsyncClientClass::send(async_data*) at ??:?
0x4010107f in umm_malloc at ??:?
0x40206c15 in void std::vector<unsigned int, std::allocator<unsigned int> >::_M_realloc_insert<unsigned int const&>(__gnu_cxx::__normal_iterator<unsigned int*, std::vector<unsigned int, std::allocator<unsigned int> > >, unsigned int const&) at ??:?
0x401010f0 in umm_poison_malloc at ??:?
0x40205296 in Timer::loop() at ??:?
0x4020b1ef in AsyncClientClass::process(bool) at ??:?
0x40206ce5 in _ZN11firebase_ns4List13addRemoveListERSt6vectorIjSaIjEEjb$isra$0 at FirebaseManager.cpp:?
0x4020b5bd in FirestoreBase::asyncRequest(FirestoreBase::req_data&, int) at ??:?
0x40214915 in String::copy(char const*, unsigned int) at ??:?
0x4020c9fe in FirebaseManager::onSuccess(FirebaseCallbackResult&) at ??:?
0x40100a1a in check_poison_block at umm_malloc.cpp:?

this is comething related to bearSSL, i am using esp01 with 1mb flash memory and just before the crash it was having about 12000bytes free memory left with 14% fragments.

[00:00:16][homelink][FirebaseManager.cpp:55][VERBOSE] requesting firebase doc
   ↳ Free Heap: 14896 bytes
   ↳ Free Frag: 18 %
[00:00:16][homelink][FirebaseManager.cpp:58][VERBOSE] firebase doc request complete
   ↳ Free Heap: 14864 bytes
   ↳ Free Frag: 18 %
[00:00:17][homelink][FirebaseManager.cpp:59][VERBOSE] Calling on create documetn
   ↳ Free Heap: 14864 bytes
   ↳ Free Frag: 18 %
[String] '{"mapValue ... ":': Reallocating large String(12 -> 243 bytes)
[String] '{"fields": ... 2641"}}}},': Reallocating large String(230 -> 340 bytes)
[String] '{"fields": ... 641"}}}}}}': Reallocating large String(231 -> 342 bytes)
[String] '{"mapValue ... ":': Reallocating large String(12 -> 354 bytes)
[String] '{"fields": ... 641"}}}}}}': Reallocating large String(231 -> 342 bytes)
[String] '{"fields": ... 641"}}}}}}': Reallocating large String(231 -> 342 bytes)
[00:00:17][homelink][FirebaseManager.cpp:79][VERBOSE] values setting complete, initiating document create process
   ↳ Free Heap: 12624 bytes
   ↳ Free Frag: 14 %
[String] 'POST /v1/p ... apis.com
': Reallocating large String(129 -> 144 bytes)
[String] 'POST /v1/p ...  Firebase ': Reallocating large String(153 -> 165 bytes)
[String] 'POST /v1/p ... h_token>
': Reallocating large String(167 -> 191 bytes)
[String] 'POST /v1/p ... ep-alive
': Reallocating large String(191 -> 214 bytes)
[String] 'POST /v1/p ... ag: true
': Reallocating large String(214 -> 237 bytes)
:ur 1
:dsrcv 0
:del
:ref 1
BSSL:_connectSSL: start connection

_iobuf_in:       0x401071f4
_iobuf_out:      0x4010836c
_iobuf_in_size:  4421
_iobuf_out_size: 1109
:wr 229 0
:wrc 229 229 0

--------------- CUT HERE FOR EXCEPTION DECODER ---------------

Soft WDT reset

Exception (4):
epc1=0x40215c97 epc2=0x00000000 epc3=0x00000000 excvaddr=0x00000000 depc=0x00000000

Level1Interrupt: Level-1 interrupt as indicated by set level-1 bits in the INTERRUPT register
  epc1=0x40215c97 in optimistic_yield at ??:?

here is my code that i have used:

LOGV("requesting firebase doc");
            // getFirebaseDoc();
            app.getApp<Firestore::Documents>(Docs);
            LOGV("firebase doc request complete");
            LOGV("Calling on create documetn");
            // checkDeviceDataExist();
            // createDocument();
            Values::MapValue jp("time_zone", Values::IntegerValue(9));
            jp.add("population", Values::IntegerValue(125570000));

            Document<Values::Value> doc("japan", Values::Value(jp));

            Values::MapValue bg("time_zone", Values::IntegerValue(1));
            bg.add("population", Values::IntegerValue(11492641));

            doc.add("Belgium", Values::Value(bg));

            Values::MapValue sg("time_zone", Values::IntegerValue(8));
            sg.add("population", Values::IntegerValue(5703600));

            doc.add("Singapore", Values::Value(sg));

            String documentPath = "Devices/test";

            LOGV("values setting complete, initiating document create process");

            Docs.createDocument(aClient, Firestore::Parent(FIREBASE_PROJECT_ID), documentPath, DocumentMask(), doc,asyncFirebaseCallback, "createDocumentTask");
            LOGV("document create async call complete");
            LOGV("create document call completed");

please let me know if any other information is required.

[mobizt]

That is what you have to manage yourself.

You should know the minimum safe free memory for system tasks to run to prevent consequence failures.

This is the library repository not a community forum.

[ashkr1]

i like to confirm the code i am using is correct and there is nothing problem in there for creating document?

[mobizt]

Nothing I can tell. You are running on limited memory device only 30k free memory after used by WiFi.

The memory is critical at 10k to keep systems tasks to run.

You have to use ESP32 or Raspberry Pi Pico instead.