On 09/10/2018 08:48, Catalin Demergian wrote:
Hi,
I put more debugging effort into this.
I think it's all about the Wait.flags value when the ISR is arriving.
For Wait.flags=BLOCKED or Wait.flags=INTEND_TO_BLOCK things are working
(yes, _Thread_Unblock is called from _Event_Seize properly), but when
Wait.flags=READY
things don't work because the conditions in if block
from _Event_Surrender are not met and
nobody calls _Thread_Unblock; even if more ISRs arrive, Wait.flags
remains READY and the
thread is not put on the CPU anymore.
1. how can Wait.flags be READY before the ISR is arriving ?
The wait flag name is THREAD_WAIT_STATE_READY_AGAIN. This is a state
after a blocking operation. Such a thread is ready and either executes
or the scheduler decided that it is not important enough and a higher
priority thread executes.
2. on the else of the if block I tried to put unblock=true to unblock
my task
if (
_Event_Is_blocking_on_event( the_thread, wait_class )
&& _Event_Is_satisfied( the_thread, pending_events, &seized_events )
) {
, I did see _Thread_Unblock called, but in _Thread_Clear_state
_Scheduler_Unblock was not called
because the_thread->current_state = 0.
do I have to set something else besides unblock=true to unblock my task ?
I am not sure if this is really the problem area indicated by the failed
assertion in one of your previous e-mails:
assertion "first != _Chain_Tail( &ready_queues[ index ] )" failed: file
"../../cpukit/../../../stm32f7/lib/include/rtems/score/schedulerpriorityimpl.h",
line 166, function: _Scheduler_priority_Ready_queue_first
This assertion tells you that the scheduler data structures are corrupt.
The thread wait flags are a different domain.
There are tests which specifically test the event send/receive conditions:
testsuites/sptests/spintrcritical10
testsuites/sptests/spintrcritical11
testsuites/sptests/spintrcritical18
testsuites/sptests/spintrcritical21
I would run at least these tests on your board. I normally run all tests
during a BSP development.
--
Sebastian Huber, embedded brains GmbH
Address : Dornierstr. 4, D-82178 Puchheim, Germany
Phone : +49 89 189 47 41-16
Fax : +49 89 189 47 41-09
E-Mail : sebastian.hu...@embedded-brains.de
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Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG.
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