The gRPC will terminate process when it can’t allocate memory

My program leverages gRPC, and after a stress testing, it crashed. Use gdb to debug the core dump file:

[Current thread is 1 (Thread 0x7f73ef5f1780 (LWP 147393))]
(gdb) bt
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
#1  0x00007f73edee542a in __GI_abort () at abort.c:89
#2  0x00005580f74da93a in gpr_malloc ()
#3  0x00005580f74e4b65 in ?? ()
#4  0x00005580f74e28d4 in grpc_exec_ctx_flush ()
#5  0x00005580f758aee1 in ?? ()
#6  0x00005580f75061b7 in grpc_pollset_work ()
#7  0x00005580f74f1c78 in ?? ()
#8  0x00005580f72ab85e in grpc::CompletionQueue::Pluck (this=0x5580f96b3698, tag=0x7fff9cafbe90)
......

I doubt the root cause should be memory is not enough, but not sure. Check the source code of gpr_malloc:

void* gpr_malloc(size_t size) {
  void* p;
  if (size == 0) return nullptr;
  GPR_TIMER_BEGIN("gpr_malloc", 0);
  p = g_alloc_functions.malloc_fn(size);
  if (!p) {
    abort();
  }
  GPR_TIMER_END("gpr_malloc", 0);
  return p;
}

We can see if p is NULL, the abort() system call will be invoked. This verifies what I guessed. Besides gpr_malloc, other memory allocate functions (such as gpr_zalloc, gpr_realloc, etc) have the same behaviors.