[Gumstix-users] fstream with threading enabled segfaults

[rketcham <Ric...@gm...>]

Hello,
I've written a logging class which I want to use with other applications for
logging process information. The logging class works on my desktop (which is
using Ubuntu) but when I cross-compile it with the 1508 buildroot (with
threading enabled - fixed via toolchain/Makefile.in) and deploy it on a
gumstix, the class segfaults when it tries to write to an already opened
file. When the toolchain is rebuilt with threading disabled, the program
miraculously works and is able to write to the file it creates. My other
buildroot versions (1552, 1627, 1633) have threading enabled and don't work
as well. 

These are the includes for my class:

#include <string> //String
#include <fstream> //File IO
#include <sstream> //String Editing
#include <stdio.h>
#include <time.h>

The class segfaults here:

m_logFile.write(logString.c_str(),logString.size());

logString is a string created from a stringstream object:

ostringstream logLine;
logLine<<"stuff";
string logString = logLine.str();


I need to be able to use this logging class within an application that is
also using threading. Any ideas?

Thanks,
Rich

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