id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
4247,boost::asio access violation on mingw32,boost@…,chris_kohlhoff,"On a mingw32 build of libs/asio/example/http/async_client.cpp using gcc 4.5, an access violation is created when the HTTP client is pointed to an address which refuses the connection. When adding a `LoadLibrary(""exchndl.dll"");` (stack dump tool from mingw-utils), I get the following stack trace:

Z:\tmp\a.exe caused an Access Violation at location 004277d1 in module Z:\tmp\a.exe Reading from location 00000200.

Registers:
eax=00000051 ebx=00123df0 ecx=00a4faa0 edx=00000200 esi=00a4f9e4 edi=00a4faac
eip=004277d1 esp=00a4f960 ebp=00a4f9f8 iopl=0         nv up ei pl nz na pe nc
cs=0073  ss=007b  ds=007b  es=007b  fs=0033  gs=003b             efl=00010202

Call stack:
004277D1  Z:\tmp\a.exe:004277D1  boost::system::error_code::message  /opt/boost-mingw32/include/boost/system/error_code.hpp:350
004233EF  Z:\tmp\a.exe:004233EF  boost::_mfi::mf1<void, client, boost::system::error_code const&>::operator()  /opt/boost-mingw32/include/boost/bind/mem_fn_template.hpp:165
004205A2  Z:\tmp\a.exe:004205A2  error_code  /opt/boost-mingw32/include/boost/system/error_code.hpp:315
0041FBA9  Z:\tmp\a.exe:0041FBA9
00401978  Z:\tmp\a.exe:00401978  boost::system::error_code::operator void (*)()  /opt/boost-mingw32/include/boost/system/error_code.hpp:357
004010A5  Z:\tmp\a.exe:004010A5

When compiling with -DBOOST_ASIO_DISABLE_THREADS, I get the following error message instead:

Exception: thread: Unknown error",Bugs,closed,Boost 1.43.0,asio,Boost 1.44.0,Problem,worksforme,,