high priority interrupts disabled

Wolfgang Denk wd at denx.de
Tue Dec 11 05:38:06 EST 2001

In message <3C14F91F.F382ABE3 at labs.mot.com> you wrote:
> Another observation that I've made is that the problem doesn't occur all the
> time, but it seems to be triggered when IRQ2 is asserted during IRQ6
> processing (or while IRQ6 is asserted). If IRQ6 really is being installed with
> SA_INTERRUPT, it would make sense that IRQ2 wouldn't get serviced until IRQ6
> completes, but IRQ6 completes over 120 times before IRQ2 is serviced - that
> doesn't make sense.

Maybe you can get more information using the Linux Trace Toolkit;  if
necessary,  add  some  custom  traces  in  the suspected areas of the
interrupt handlers. See http://www.opersys.com/LTT/index.html

Hope this helps,

Wolfgang Denk

Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
People are very flexible and learn to adjust to strange  surroundings
--  they can become accustomed to read Lisp and Fortran programs, for
example.   - Leon Sterling and Ehud Shapiro, Art of Prolog, MIT Press

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

More information about the Linuxppc-embedded mailing list