Hi, Yes, there is a call to rtems_task_wake_after in the code; but in that case state should have been STATES_DELAYING, right ? At another run, I got state = 0x0 = STATES_READY Wait.flags = 0x104 = THREAD_WAIT_CLASS_EVENT | THREAD_WAIT_STATE_READY_AGAIN Why would the state be ready in _Event_Seize ? could that value be corrupt ?
I tried with the stack checker as well, but I didn't see any out of band values. Catalin On Thu, Oct 11, 2018 at 11:17 AM Sebastian Huber < sebastian.hu...@embedded-brains.de> wrote: > On 11/10/2018 09:52, Catalin Demergian wrote: > > Hi, > > I don't use malloc myself in the code I added, but I see it is used a > > lot in the networking code. > > > > I printed state and Wait.flags for SCrx task > > * when all is ok * > > in _Event_Seize, after _Thread_Dispatch_enable > > state = 0x100 = STATES_WAITING_FOR_EVENT > > Wait.flags = 0x102 = THREAD_WAIT_CLASS_EVENT | THREAD_WAIT_STATE_BLOCKED > > in _Event_Surrender at the beginning > > state = 0x100 > > Wait.flags = 0x102 > > > > * when SCrx is not scheduled any more * > > in _Event_Seize, after _Thread_Dispatch_enable > > state = 0x0 = STATES_READY > > Wait.flags = 0x02 = THREAD_WAIT_STATE_BLOCKED > > in _Event_Surrender at the beginning > > state = 0x0 > > Wait.flags = 0x02 > > > > do these look like valid values ? I mean in _Event_Seize the state > > should have been blocked, right ? > > can these values be caused by a corruption ? > > A thread wait flags value of 0x02 indicates that this thread used > rtems_task_wake_after() recently (at least in RTEMS 5, but very likely > also in RTEMS 4.11.2). > > > > > -> Did you check the task stacks with the stack checker? > > I'm afraid I don't know how to use it in RTEMS. any link to > > information on how to detect/analyze a data coruption in RTEMS can be > > useful. > > It is a configuration option > > #define CONFIGURE_STACK_CHECKER_ENABLED > > In the RTEMS shell you can obtain the task stack information with the > "stackuse" command. > > -- > 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 > PGP : Public key available on request. > > Diese Nachricht ist keine geschäftliche Mitteilung im Sinne des EHUG. > >
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