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Showing content from https://github.com/esp8266/Arduino/issues/6269 below:

disabled" · Issue #6269 · esp8266/Arduino · GitHub

• This issue complies with the issue POLICY doc.
• I have read the documentation at readthedocs and the issue is not addressed there.
• I have tested that the issue is present in the current master branch (aka latest git).
• I have searched the issue tracker for a similar issue.
• If there is a stack dump, I have decoded it.
• I have filled out all fields below.

• Hardware: ESP-12
• Core Version: [76cda9b]
• Development Env: Arduino IDE
• Operating System: Ubuntu

• Module: Adafruit HUZZAH

• Flash Mode: qio

• Flash Size: 4MB

• lwip Variant: v2 Lower Memory

• Reset Method: nodemcu

• Flash Frequency: 40Mhz

• CPU Frequency: 80Mhz

• Upload Using: SERIAL

• Upload Speed: 115200(serial upload only)

• Exceptions: Disabled

With "Exceptions: Disabled" selected from the Arduino IDE.
A build using the new operator without (std::nothrow) causes a crash, when out of memory.
Fails with "Abort called" and stack trace.
No opportunity to test for NULL.

This test sketch also fails with Arduino ESP8266 Core 2.5.0; however, it works (returns NULL) in Core 2.4.2.

And before rerunning each test, I did a git pull against the branch and ran ./get.py from the tools directory.

void setup() {
  Serial.begin(115200);
  delay(20);
  Serial.printf("\nUp and running ...\n");
//  char *p = new (std::nothrow) char[128000];  // This will return NULL
  char *p = new char[128000];  //This fails with "Abort called" and stack trace

  if (p == NULL) {
    Serial.printf("\n\"new\" failed as it should! PASS!\n");
  } else {
    Serial.printf("\n\"new\" worked, it should not have!, FAIL!\n");
  }
}

void loop() {
}

Up and running ...

Abort called

>>>stack>>>

ctx: cont
sp: 3ffffdd0 end: 3fffffc0 offset: 01b0
3fffff80:  40201d52 00000014 3ffee294 4020a4d4  
3fffff90:  3fffdad0 00000000 3ffee294 40201058  
3fffffa0:  feefeffe feefeffe 3ffee2bc 40201874  
3fffffb0:  feefeffe feefeffe 3ffe84f4 40100a41  
<<<stack<<<

last failed alloc call: 4020A504(128000)

 ets Jan  8 2013,rst cause:2, boot mode:(3,6)

load 0x4010f000, len 1384, room 16 
tail 8
chksum 0x2d
csum 0x2d
v76cda9bd
~ld


Decoding stack results
0x40201d52: delay(unsigned long) at /home/mhightow/Arduino/hardware/esp8266com/esp8266/cores/esp8266/core_esp8266_wiring.cpp line 57
0x4020a4d4: operator new[](unsigned int) at ../../../../../dl/gcc-xtensa/libstdc++-v3/libsupc++/new_opv.cc line 33
0x40201058: setup() at /home/mhightow/Arduino/test/nothrow3/nothrow3.ino line 14
0x40201874: loop_wrapper() at /home/mhightow/Arduino/hardware/esp8266com/esp8266/cores/esp8266/core_esp8266_main.cpp line 129

This issue may be related to #6251 (comment)

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