Is there any change on interrupt catch between RTEMS 4.9.4 and 4.10.0?

Joel Sherrill joel.sherrill at
Mon Feb 21 19:19:00 UTC 2011

On 02/21/2011 01:01 PM, Filipe Cividanes wrote:
> Hi all,
> I've recompiled and run two simple applications, thet use ISRs to 
> manage a console/terminal interface.
> The BSP is SPARC/SIS. Both applications run successfully on RTEMS 
> 4.9.4, but not on 4.10.0. They simply stop running just after 
> 'rtems_interrupt_catch' is called for the UART A. In fact, it seems 
> that they stop on the first 'printf' after the interrupt catch.
> Does anyone have noticed this behavior? Has something changed on 
> interrupt catch between 4.9.4 and 4.10.0? Could be something new on 
> gcc's printf for the SPARC architecture?
There are no interrupt changes.

The console driver was rewritten between 4.9 and 4.10.   It is possible
something slipped through the testing.  You probably should compare the
two console drivers with a view toward the mode you are using.

2010-04-27      Tiemen Schut <T.Schut at>

         PR 1506/bsps
         * console/console.c: Removed.
         * console/erc32_console.c: New file.  Use shared console driver.
         Make sure interrupt support works.  PPPD confirmed on sis.
         * Reflect changes above.

> Thanks in advance and best regards,
> Filipe Cividanes.

Joel Sherrill, Ph.D.             Director of Research&  Development
joel.sherrill at        On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
    Support Available             (256) 722-9985

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