hanging

[Fabio Roger <fabioroger at gmail dot com>]

hi all,

I need help on how to debug this particular situation: 

I have an application with lots of threads and native methods for
hardware handling and everything works fine.. all compiled to native
with gcj 3.4.0 from http://www.thisiscool.com/gcc_mingw.htm:

Configured with: /datal/gcc/gcc/configure --
prefix=/datal/gcc/build/wingcc --build=i686-pc-linux-gnu --host=i686-pc-
mingw32 --target=i686-pc-mingw32 --enable-languages=c,c++,java --with-
gcc --with-gnu-as --with-gnu-ld --with-as=i686-pc-mingw32-as --with-
ld=i686-pc-mingw32-ld --enable-threads=win32 --disable-nls --disable-
win32-registry --disable-shared --disable-debug --without-newlib --
enable-libgcj --disable-java-awt --without-x --enable-java-gc=boehm --
disable-libgcj-debug --enable-interpreter --enable-hash-synchronization
--enable-sjlj-exceptions --enable-libgcj-multifile --enable-libgcj-
mingw-osapi=ansi
Thread model: win32
gcc version 3.4.0 20040316 (prerelease)


all works fine.. BUT sometimes (like once a day) the thing just hangs..
not even the threads waiting for tcp requests, replies.. (but the OS is
still ok)

my issue is.. I have no idea what "might" be going wrong.. and no idea
how to debug the thing either.. no error msg comes up.. no exception
thrown, nothing.. it just hangs..

any idea of what kind of thing could it be or any direction?

btw, how to debug the garbage collector in a gcj-compiled executable?

thanks!

Fabio Roger