title: *** glibc detected *** free(): invalid pointer: 0x00050530 *** & coredump & no valgrind on ARMv5
body: <p>I have</p>
  
  <pre><code>*** glibc detected *** free(): invalid pointer: 0x00050530 ***
  </code></pre>
  
  <p>and coredump</p>
  
  <pre><code>(gdb) bt
  #0  memcpy () at ../sysdeps/arm/memcpy.S:93
  #1  0x40025188 in __free_tcb (pd=0x0) at pthread_create.c:217
  #2  0x5927f3a0 in ?? ()
  
  (gdb) p 0x00050530
  $4 = 329008
  </code></pre>
  
  <p>and no valgrind because of platform restriction ARMv5</p>
  
  <p>what useful info can i get form coredump and that address?</p>