[ECOS] stress_threads: I'm getting "Bad byte in chunk" output. Do I have memory corruption?

["Warren Postma" <warren dot postma at adaptivenetworks dot on dot ca>]

I'm getting an interesting bit of output when I run stress_threads.exe

This is the test code in stress_threads.c (circa line 600)
where perform_stressful_tasks() is cleaning up:

...
  /* now free it all up */
  for (i = 0; i < MAX_MALLOCED_SPACES; ++i) {
      if (spaces[i] != NULL) {
          size = sizes[i];
          for (j = 0; j < size; ++j) {
              // Validate chunk data.
              if ((0x50 | ((j+i) & 0x0f)) != spaces[i][j]) {
                  printf("Bad byte in chunk\n");
              }
              spaces[i][j] = 0xAA;    /* write a bit pattern */
          }
          free(spaces[i]);
      } else {
          ++statistics.malloc_failures;
      }
  }
...

In this case, I'm getting that "Bad byte in chunk" output to screen when I
run stress_threads? Is this likely to be a bug in my ECOS kernel or toolset?
Has anyone else seen this while running this test? I'm going to switch to a
different bunch of tests and see what other problems I can find on my
target.  I picked stress_threads as I thought, if the more brutal tests
pass, then its likely ECOS is stable on my target. <grin>

Regards,

Warren



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