warning: HEAP[SpringMapConvNG.exe]: warning: Invalid address specified to RtlFreeHeap( 003C0000, 00628EB8 ) Program received signal SIGTRAP, Trace/breakpoint trap. 0x770f04e5 in ntdll!TpWaitForAlpcCompletion () from C:\Windows\system32\ntdll.dll (gdb) bt #0 0x770f04e5 in ntdll!TpWaitForAlpcCompletion () from C:\Windows\system32\ntdll.dll #1 0x0028f560 in ?? () #2 0x770b2a2a in ntdll!RtlCopyExtendedContext () from C:\Windows\system32\ntdll.dll #3 0x00628eb0 in ?? () #4 0x770f153f in ntdll!TpQueryPoolStackInformation () from C:\Windows\system32\ntdll.dll #5 0x003c0000 in ?? () #6 0x770aab9a in ntdll!AlpcMaxAllowedMessageLength () from C:\Windows\system32\ntdll.dll #7 0x003c0000 in ?? () #8 0x77053492 in ntdll!LdrLoadAlternateResourceModuleEx () from C:\Windows\system32\ntdll.dll #9 0x00628eb0 in ?? () #10 0x766b98cd in msvcrt!free () from C:\Windows\syswow64\msvcrt.dll #11 0x003c0000 in ?? () #12 0x6d98b459 in TileStorage::CompressTile(unsigned long long) () from d:\temp\test\libmapconv.dll #13 0x6d98b807 in TileStorage::WriteToFile(_iobuf*, std::vector >&) () from d:\temp\test\libmapconv.dll #14 0x6d9848b6 in SMFMap::Compile() () from d:\temp\test\libmapconv.dll #15 0x00401f40 in main ()