1.5.25: gcc/gomp crash

robs aquegg@yahoo.co.uk
Fri Jul 10 21:41:00 GMT 2009


On Friday 10 Jul 2009, you wrote:
> 2009/7/10 robs:
> > Compiling and running the attached gomp test code crashes (or sometimes
>
> locks up) on a dual core PC.
>
> > I.e.
> > gcc -fopenmp -lgomp gomp-test.c
> > ./a.exe
> > crashes. ?If invoked as
> > ./a.exe 1
> >
> > however, the program is run single-threaded and completes correctly.
>
> Neither ./a nor ./a 1 crash after several retries on my single-core CORE2
> T7200.
> gcc (GCC) 4.3.2 20080827 (beta) 2

Yes, this problem seems to occur only on dual (or more) core.  BTW, the same test works fine under linux (gcc 4.3.3) on the same dual core PC that crashes under cygwin.

/Rob






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