This is because you have an (uininitialized) statically allocated variable that is too large. It has nothing to do with malloc or heap_alloc_caps, those aren't looked at at compile time. Thanks for the response. Any example of the declaration/definition variables/codes that may contribute to the in...

Hi, I added new driver into my code, then compile my project and got the overflowed error. ############################## /home/user/esp/xtensa-esp32-elf/bin/../lib/gcc/xtensa-esp32-elf/5.2.0/../../../../xtensa-esp32-elf/bin/ld: /home/user/esp/esp-idf/examples/limidea/build/limidea.elf section `.dra...

Yes, I agreed that it should be something related to the memory.
Because the backtrace keep relate it back to the memory part of codes.

And yes, I have a global pointer pass in to my tasks.
Maybe I should start from there.

Thanks for your comment!

I do the back trace and it pointed me to the tcpip.c under lwip/api, line 474 code as below: err_t tcpip_trycallback(struct tcpip_callback_msg* msg) { if (!sys_mbox_valid_val(mbox)) { return ERR_VAL; } return sys_mbox_trypost(&mbox, msg); } Also, the timers.c under the lwip/core, line 570, which is:...

Thanks for the suggestion.
I'm able to isolate the task that causing the reset.
But what kind of timing issue that you're referring to that may cause this reset?

Hi, I wrote a program (a big/complicated application) that will be continuous running in a forever loop and sometimes response to some udp requests. I keep having some error message as below before reset: assertion "is_free(b)" failed: file "/home/user/esp/esp-idf/components/heap/./multi_heap.c", li...

Oh, thanks for showing your codes.... That's the part that I'm checking in the wrong way. I take the gettimeofday in the printf, and I think printf itself need quite some process cycles, right? Below is how I printf the previous result I got. "printf("before gettick : %lld\n",getTicks());" In fact, ...

Hi, I've tried to printf the system ticks using gettimeofday. And I found that the differences between 2 printf for the gettimeofday are around 2-3 ms. My printf result as below, in ns: ets_get_cpu_frequency : 240 before gettick : 884583000 after gettick : 887201000 As I set the CPU frequency to be ...

WiFive wrote:https://en.m.wikipedia.org/wiki/8.3_filename

Thanks for the info!!

Thanks all for the info!!! After updated the esp-idf, it's working now! :) But another thing to double check, I found that the file extension has some limitation right? From what I tested, the file name extension can only be "name.ext". 1. file extension (the ".ext") can't go for more than 3 charact...