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Task not triggering on mailbox post

Justin Antony G
Intellectual 775 points

Hi,

I'm facing a strange issue wherein mailbox posts happen but the task-A is not getting triggered. From the kernel-object viewer, this particular task-A is pending on that mailbox which was posted but a lower priority task-B is running. Also task-A is highest priority task.

This works under normal circumstances but under some particular test scenario, this does not work. I'm not able to find the scenario as such since this happens in simulation of a live network. 

Here is my configuration:

DSP/BIOS version: 5.33.4

DSP: C6416

CGTOOLS: 6.1.19

Tasks: 10 tasks

Any clues to find the root cause from kernel object viewer or any other bios section in the dsp memory dump? 

Regards,

Justin

  • 0
    TI__Mastermind 18320 points

    Justin,

    One way to possibly debug this would be to take advantage of the DSP/BIOS logging feature in order to give you better visibility on what's going on in your system on a real-time basis, without having to set a breakpoint -- which would probably prevent you from seeing the issue (which is why you are not making progress by using the KOV tool).  Log data is created intrinically by the DSP/BIOS kernel's various modules, and can also be explicitly be done from within your application by calling the LOG module API.  You can then examine the log messages, either at runtime if you have a real time debugging link, or after you halt the system.  As a strategy, you should be trying to capture log messages whenever your mailbox is getting posted.

    There is a pretty good description of how LOG and real time analysis works in the DSP/BIOS User's Guild, so you should definitely read that over.

    Dave