Successful rtems_region_get_segment() returning NULL pointer ?
Rolf Schroedter
Rolf.Schroedter at web.de
Sat Sep 18 19:07:59 UTC 2004
Found a workaround for the described problem:
With the following construct my application runs for several hours:
> for(;;) {
> stat=rtems_region_get_segment(idRegion,size, \
> RTEMS_NO_WAIT,RTEMS_NO_TIMEOUT,&ptr);
> if (stat == RTEMS_SUCCESSFUL) break;
> rtems_task_wake_after(10);
> }
The following two constructs are occasionally stopping the task calling
rtems_region_return_segment() when the region is full.
> stat=rtems_region_get_segment(idRegion,size, \
> RTEMS_WAIT,RTEMS_NO_TIMEOUT,&ptr);
or
> for(;;) {
> stat=rtems_region_get_segment(idRegion,size,RTEMS_WAIT,10,&ptr);
> if (stat == RTEMS_SUCCESSFUL) break;
> }
Really strange ...
I'm using RTEMS 4.6.0pre4, provided with the Leon-Sparc leccs1.2.2
development system.
Regards,
Rolf.
--
Rolf Schroedter
German Aerospace Center
Institute of Planetary Research
D-12489 Berlin, Rutherfordstrasse 2
Tel/Fax: (+49) (30) 67055-416/384
Email: Rolf.Schroedter at dlr.de
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