leak false negatives: missing leaks on spec2k6 povray?

_From [derek.br...@gmail.com](https://code.google.com/u/117968039472581148324/) on December 10, 2010 17:34:49_

PR 626079

split from PR 622253:

drmem reports fewer leaked bytes than Memcheck!
3 unique, 3 total, 28 byte(s) of leak(s)
21 still-reachable allocation(s)
Error `#1`: LEAK 24 direct bytes 0x08af49d8-0x08af49f0 + 4 indirect bytes
Error `#2`: LEAK 0 direct bytes 0x08af2370-0x08af2370 + 0 indirect bytes
Error `#3`: LEAK 0 direct bytes 0x08b26f98-0x08b26f98 + 0 indirect bytes

memcheck reports:
==18821== LEAK SUMMARY:
==18821== definitely lost: 192 bytes in 10 blocks
==18821== indirectly lost: 1,585 bytes in 114 blocks
==18821== possibly lost: 0 bytes in 0 blocks
==18821== still reachable: 221 bytes in 16 blocks

_Original issue: http://code.google.com/p/drmemory/issues/detail?id=88_