lkml.org 
[lkml]   [2002]   [Jan]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: floating point exception
From
Date
On Tue, 2002-01-15 at 15:34, Zwane Mwaikambo wrote:
> On 14 Jan 2002, Christian Thalinger wrote:
>
> > It seems the floating point exception is only raised with a new data
> > package. Is there a simple way to raise such a exception?
>
> New data package? And does the same behaviour re-occur after the fpu
> exception? ie programs start segfaulting etc. Can you try doing a "dmesg"
> after the segfaults and fpu exception and see if there is anything in the
> kernel ring buffer too.
>
> Regards,
> Zwane Mwaikambo
>

There are .sah files, in which the data is stored to analyse. So i
deleted these files and the client downloads a new package -> new data
package.

Yes, it did happen that the segfault reoccured and there is nothing in
the dmesg. This was also my first thought, then checked
/var/log/messages with a tail and it stucked. No ctrl-c.

Tried this:

#define _GNU_SOURCE 1
#include <fenv.h>

main() {
double zero=0.0;
double one=1.0;
feenableexcept(FE_ALL_EXCEPT);

one /=zero;
}
...but nothing happens.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:23    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site