Please try upgrading to 3.0pre9.
Michael.
Mohsen Mahvash Mohammadi ([EMAIL PROTECTED]) wrote:
> Hi
> I have found that using sin() and cos() in real time task has caused
> segmentation fault for user program.here is part of my program which
> causes the problem:
>
>
> #include <math.h>
>
>
> float theta1_rad;
> float theta2_rad;
> ...
> ...
> theta2_rad = 0.0;/*for test*/
> theta1_rad = 0.0;/*for test*/
> pencat_pos.y = Link1 * sin(theta1_rad) - Link2 * cos(theta2_rad) ;
>
> Do you know how I can fix this problem
> > My RTL
> Task reads data from an Analog to digital card ( using inb) and
> > writes the data, as a structure, into a FIFO which reads by a user
> > program. The RTL rask also reads data from the user program through
> > another FIFO and transfer it to the analog to digital card( using outb).
> > The rtl task is in 1000 Hz.
> >
> > I am using RTL version 2.0 with Kernel
> > vesion 2.2.13
> >
> > here is the message when I am running my linux program with RTL task
> > Program received signal SIGSEGV, Segmentation fault.
> > 0x401fdf64 in flat_8R8G8B_triangle (ctx= Cannot access memory at address
> > 0x100022. ) at ../../src/tritemp.h:972 972 INNER_LOOP( left, right, iy ); >
> >
> > Mohsen Machmash
> >
> >
> >
> > What does your RTL
> > task do? What RTLinux version do you use? > > Michael.
> >
> > > > Mohsen Mahvash
> > Mohammadi ([EMAIL PROTECTED]) wrote: > > Dear all > > > > Data is read
> > from an I/O card and transferd to linux area > > through a fifo to be
> > displayed .I try to use Open GL for Displaying . > > > > When RTL thread
> > is running , The Open GL Program which runs in linux > > is stoped with a
> > segmentation fault.when I do not have my rtl thread , > > the Open GL
> > program is fine . I wonder how I can fix this problem to > > have rt
> > threads and also open GL utility to display the data. > > Sometimes The
> > netscape is also stopped with a same situation. > > Mohsen Mahvash > > > >
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> > (g>
> > >
> > >
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> >
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