Out of memory error with mbed-os 6.8 and libxdot 4.1.4

Mbed OS
1

Hi there,

I’m moving a project from the Online Compiler and mbed-os 5 / libxdot-mbed 5 to Keil Studio and mbed-os 6.8.0 / libxdot 4.1.4. The problem is the LoRa code that was previously running fine under mbed-os 5 is now crashing with the error message:

++ MbedOS Error Info ++
Error Status: 0x8001011F Code: 287 Module: 1
Error Message: Operator new[] out of memory

Location: 0x801BB57
Error Value: 0x800
Current Thread: main Id: 0x20002910 Entry: 0x801EE09 StackSize: 0xA00 StackMem: 0x200013B0 SP: 0x20001C5C

The code that causes this error is:

#include "lsb.h"
#include "ChannelPlan_AS923.h"
#include "ChannelPlan_AU915.h"

extern config current_config;
extern BufferedSerial term;

mDot* dot = NULL;
lora::ChannelPlan* plan = NULL;
static uint8_t config_frequency_sub_band = 1;
int32_t ret;

void configNetworkAndJoin(void)
{
    if(current_config.channel_plan==1) plan = new lora::ChannelPlan_AS923(); else if(current_config.channel_plan==2) plan = new lora::ChannelPlan_AU915();
    assert(plan);
 
    dot = mDot::getInstance(plan);
    assert(dot);

The crash happens during the call to getInstance(). I have checked the mbed-os and libxdot versions and according to the libxdot git commit log, these are the correct versions.

Any help would be greatly appreciated!

2

This not directly an answer for your problem, but often when I had similar problem, was because of bad code. try to static analyze your cod using cppcheck or any other tool.
That might give you a hint.
sorry if that doesn’t help you.