Wouldn't this be an issue to be addressed in the "i/o state saver" library? Robert Ramey Markus Bernhardt wrote:
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Hi,
I'm using purify to check my app. Using serialization, I see the following FMR:
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FMR: Free memory read This is occurring while in thread 3: std::locale::~locale() [libstlport.so.1] boost::scoped_ptr<std::locale>::~scoped_ptr() boost::archive::basic_binary_iprimitive<boost::archive:: binary_iarchive,std::basic_istream <char,std::char_traits<char> > >::~basic_binary_iprimitive() boost::archive::binary_iarchive_impl <boost::archive::binary_iarchive>::~binary_iarchive_impl()
boost::archive::binary_iarchive::~binary_iarchive() void de::scmb::bm::seri::Serializer::serialize (std::basic_ifstream<char,std::char_traits<char> >&, de::scmb::bm::core::Instance&)
Reading 8 bytes from 0x100312228 in the heap. Address 0x100312228 is at the beginning of a freed block of 80 bytes.
This block was allocated from thread 3: malloc [rtlib.o] c2n6Fl_Pv___1 [libCrun.so.1] void*operator new(unsigned long) [rtlib.o] std::locale::locale(std::_Locale_impl*,bool) [libstlport.so.1] std::locale::locale<boost::archive::codecvt_null<char> > (const std::locale&,__type_0*) [libboost_serialization-sw-d.a] std::locale*boost::archive::add_facet <boost::archive::codecvt_null<char> >(const std::locale&,__type_0*) [libboost_serialization-sw-d.a]
There have been 0 frees since this block was freed from thread 3: free [rtlib.o] c2k6FPv_v___1 [libCrun.so.1] void operator delete(void*) [rtlib.o] boost::io::basic_ios_locale_saver <char,std::char_traits<char> >::~basic_ios_locale_saver() [libboost_serialization-sw-d.a] boost::archive::basic_binary_iprimitive <boost::archive::binary_iarchive,std::basic_istream <char,std::char_traits<char> > >::~basic_binary_iprimitive() [libboost_serialization-sw-d.a] boost::archive::binary_iarchive_impl <boost::archive::binary_iarchive>::~binary_iarchive_impl() [Serializer.cpp]
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Has anyone seen this before.
Looks like std::locale is using a buffer with 80 bytes size, which is shared between std::locale objetcs and get deleted by the destruction of a basic_ios_locale_saver object, which has a std::locale object.
Is this guess correct ??
Can this become a problem ??
Kind regards, Markus
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