Re: high priority interrupts disabled

In message [ref] 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@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

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