intel11 has a memory error when using a stringstream?

[cwsmith]

==32149== Invalid read of size 8
==32149==    at 0x488258: __intel_sse2_strlen (in /lore/cwsmith/develop/streamInMem/phastaChef/buildIntelMpich312/phasta/bin/phIOreadheaderFtn)
==32149==    by 0x40A147: readheader_ (phastaIO.cc:1429)
==32149==    by 0x4063A4: sync_readheader(int*, char const*, void*, int*, char const*, char const*) (phio_sync.cc:60)
==32149==    by 0x4053CC: phio_readheader (phIO.cc:17)
==32149==    by 0x405243: MAIN__ (phIOreadheader.f:35)
==32149==    by 0x404D6B: main (in /lore/cwsmith/develop/streamInMem/phastaChef/buildIntelMpich312/phasta/bin/phIOreadheaderFtn)
==32149==  Address 0x6b4c098 is 40 bytes inside a block of size 43 alloc'd
==32149==    at 0x4C24DFA: operator new(unsigned long) (vg_replace_malloc.c:261)
==32149==    by 0x5DBDB28: std::string::_Rep::_S_create(unsigned long, unsigned long, std::allocator<char> const&) (in /usr/lib/libstdc++.so.6.0.13)
==32149==    by 0x5DBE824: ??? (in /usr/lib/libstdc++.so.6.0.13)
==32149==    by 0x5DBE8E9: std::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string<char*>(char*, char*, std::allocator<char> const&) (in /usr/lib/libstdc++.so.6.0.13)
==32149==    by 0x5DBC47D: std::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >::str() const (in /usr/lib/libstdc++.so.6.0.13)
==32149==    by 0x406376: sync_readheader(int*, char const*, void*, int*, char const*, char const*) (phio_sync.cc:59)
==32149==    by 0x4053CC: phio_readheader (phIO.cc:17)
==32149==    by 0x405243: MAIN__ (phIOreadheader.f:35)
==32149==    by 0x404D6B: main (in /lore/cwsmith/develop/streamInMem/phastaChef/buildIntelMpich312/phasta/bin/phIOreadheaderFtn)