title: Android>>AndEngine: What does an error of this LogCAT form mean?
body: <p>I suspect a threading or issue with various arraylist access. Well, I no longer get 'easy' concurrency exceptions, only the same error message in the following form. </p>
  
  <p>I've read somewhere that this may be due to Dalvik VM itself crashing.</p>
  
  <p>I also note /libandenginephysicsbox2dextension.so appearing. </p>
  
  <p>In tests, I've tried removing code executed on AndEngine's update thread, and the error pops up easier and more frequently.</p>
  
  <p>I am getting close to isolating a test case, but the pattern of its reproduction still eludes me.</p>
  
  <p>Any help or even mundane analysis of this output would be appreciated, as it is a pattern I've seen before, but have never learned.</p>
  
  <p>Thanks all!</p>
  
  <pre><code>06-26 21:20:46.123: INFO/DEBUG(10782): *** *** *** *** *** *** *** *** *** *** *** ***     *** *** *** ***
  06-26 21:20:46.123: INFO/DEBUG(10782): Build fingerprint: 'verizon/shadow_vzw/cdma_shadow:2.3.3/4.5.1_57_DX5-26/110429:user/release-keys'
  06-26 21:20:46.123: INFO/DEBUG(10782): pid: 10758, tid: 10758  &gt;&gt;&gt; com.bomber &lt;&lt;&lt;
  06-26 21:20:46.123: INFO/DEBUG(10782): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0000005c
  06-26 21:20:46.123: INFO/DEBUG(10782):  r0 00000000  r1 be9813c0  r2 3f800000  r3   81c32b78
  06-26 21:20:46.123: INFO/DEBUG(10782):  r4 00000005  r5 00000000  r6 81c32718  r7 4214f948
  06-26 21:20:46.123: INFO/DEBUG(10782):  r8 be981414  r9 4214f91c  10 4214f904  fp aca9f368
  06-26 21:20:46.131: INFO/DEBUG(10782):  ip 00000000  sp be9813a8  lr 81c0bfc0  pc 81c18914  cpsr 60000010
  06-26 21:20:46.131: INFO/DEBUG(10782):  d0  643a64696f72646e  d1  6472656767756265
  06-26 21:20:46.131: INFO/DEBUG(10782):  d2  40362d1e3f5f9aa3  d3  b20907fa6dc9c883
  06-26 21:20:46.131: INFO/DEBUG(10782):  d4  3f02301400000000  d5  0000000000000000
  06-26 21:20:46.131: INFO/DEBUG(10782):  d6  c208322600000000  d7  bf5f9aa33f023014
  06-26 21:20:46.131: INFO/DEBUG(10782):  d8  00000000c427698d  d9  c280000000000000
  06-26 21:20:46.131: INFO/DEBUG(10782):  d10 4127698dc3500000  d11 c427698dc1ec5e40
  06-26 21:20:46.131: INFO/DEBUG(10782):  d12 c427698d80000000  d13 00000000c3880000
  06-26 21:20:46.131: INFO/DEBUG(10782):  d14 c3880000c3880000  d15 0000000000000000
  06-26 21:20:46.131: INFO/DEBUG(10782):  d16 3febf3546ccee958  d17 3f91b66bfe49b642
  06-26 21:20:46.131: INFO/DEBUG(10782):  d18 bf56a612eb0b433e  d19 3fb11f4cf9c4054b
  06-26 21:20:46.131: INFO/DEBUG(10782):  d20 3fa55553e1053a42  d21 3fb11f4cf9c4054b
  06-26 21:20:46.131: INFO/DEBUG(10782):  d22 3fd51ee240000000  d23 be4120ff40000000
  06-26 21:20:46.131: INFO/DEBUG(10782):  d24 3ef99342e0ee5069  d25 3fe0460280000000
  06-26 21:20:46.131: INFO/DEBUG(10782):  d26 40cd4c4013880000  d27 3fa97b4f068b794e
  06-26 21:20:46.131: INFO/DEBUG(10782):  d28 bfa2b4442c6a6c2f  d29 00f400f400f400f4
  06-26 21:20:46.131: INFO/DEBUG(10782):  d30 0000000000000000  d31 3ff0000000000000
  06-26 21:20:46.131: INFO/DEBUG(10782):  scr 80000012
  06-26 21:20:46.318: INFO/DEBUG(10782):          #00  pc 00018914  /data/data/com.bomber/lib/libandenginephysicsbox2dextension.so
  06-26 21:20:46.318: INFO/DEBUG(10782):          #01  pc 0000bfbc  /data/data/com.bomber/lib/libandenginephysicsbox2dextension.so
  06-26 21:20:46.326: INFO/DEBUG(10782):          #02  pc 00011e74  /system/lib/libdvm.so
  06-26 21:20:46.326: INFO/DEBUG(10782): code around pc:
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c188f4 e5823000 eaffffd6 e2871a19 e2811f76 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c18904 e1a00006 eb0003d9 eaffffe4 e92d41f0 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c18914 e590705c e3a03a19 e2833f75 e7973003 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c18924 e1a04000 e1a06001 e3130002 13a05000 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c18934 0a000001 e1a00005 e8bd81f0 e3a01038 
  06-26 21:20:46.326: INFO/DEBUG(10782): code around lr:
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c0bfa0 e2866008 e58d2014 e58d6000 e5cd5018 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c0bfb0 e1cd41bc e1cde1ba e1cdc1be eb003253 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c0bfc0 e1a02000 e1a03fc2 e1a01003 e1a00002 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c0bfd0 e28dd020 e8bd8070 00026c04 0000006c 
  06-26 21:20:46.326: INFO/DEBUG(10782): 81c0bfe0 e59f3024 e59f2024 e92d4010 e08f3003 
  06-26 21:20:46.326: INFO/DEBUG(10782): stack:
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981368  405c7970  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be98136c  405c7970  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981370  4050d018  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981374  00000020  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981378  4000c280  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be98137c  405c7970  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981380  acaa51a0  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981384  aca9f600  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981388  acaa4d38  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be98138c  aca6ac5b  /system/lib/libdvm.so
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981390  aca9f600  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981394  00000020  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be981398  fffffe84  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be98139c  00000020  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be9813a0  df002777  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be9813a4  e3a070ad  
  06-26 21:20:46.326: INFO/DEBUG(10782): #00 be9813a8  00000005  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be9813ac  00000000  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be9813b0  81c32718  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be9813b4  4214f948  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be9813b8  be981414  
  06-26 21:20:46.326: INFO/DEBUG(10782):     be9813bc  81c0bfc0  /data/data/com.bomber/lib/libandenginephysicsbox2dextension.so
  06-26 21:20:46.334: INFO/DEBUG(10782): #01 be9813c0  81c32718  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813c4  003787e0  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813c8  00000000  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813cc  3f000000  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813d0  3f000000  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813d4  3f800000  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813d8  00041400  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813dc  00000005  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813e0  be981438  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813e4  00000003  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813e8  be9814b8  
  06-26 21:20:46.334: INFO/DEBUG(10782):     be9813ec  aca11e78  /system/lib/libdvm.so
  </code></pre>