About HEAP error

[Richi Dubey]

Thank you for the suggestion. I will look into it.

On Tue, Mar 2, 2021 at 9:43 PM Joel Sherrill <joel at rtems.org> wrote:

>
>
> On Mon, Mar 1, 2021 at 10:44 PM Richi Dubey <richidubey at gmail.com> wrote:
>
>> Oh, that makes sense. Thank you.
>>
>> I got this:
>>
>> (gdb) p *(Heap_Error_context*)(0x00206d7c)
>> $5 = {
>>   heap = 0x202ba8 <_Workspace_Area>,
>>   block = 0x206fec,
>>   reason = HEAP_ERROR_FREE_PATTERN
>> }
>>
>> HEAP_ERROR_FREE_PATTERN
>> There is an unexpected value in the free pattern of a free heap block.
>>
>> I will try to find out more about this error.
>>
>
> Based on the name and you building with debug on, I would guess that
> something has written past the end of its allocated area.
>
> --joel
>
>>
>> On Mon, Mar 1, 2021 at 8:30 PM Gedare Bloom <gedare at rtems.org> wrote:
>>
>>> On Sun, Feb 28, 2021 at 10:53 PM Richi Dubey <richidubey at gmail.com>
>>> wrote:
>>> >
>>> > Hi,
>>> >
>>> > I get this error on sp02:
>>> >
>>> > *** FATAL ***
>>> > fatal source: 13 (RTEMS_FATAL_SOURCE_HEAP)
>>> > CPU: 0
>>> > fatal code: 2125180 (0x00206d7c)
>>> > RTEMS version: 6.0.0.44ae183090f3bc1a4ee281ff98525209b3fda7a7-modified
>>> > RTEMS tools: 10.2.1 20210125 (RTEMS 6, RSB
>>> ade089253e70d75105a8311844f82f6d20cc30a8, Newlib cb41c37)
>>> > executing thread ID: 0x08a010001
>>> > executing thread name: UI1
>>> >
>>> > On checking docs, it says the fatal code indicates address of heap
>>> context. I could not find any further information about this. How do I use
>>> 2125180 (0x00206d7c) to get more information about my error? Please advise.
>>>
>>> Good that you found that much.
>>> https://docs.rtems.org/branches/master/c-user/fatal_error.html
>>> Then, you can put that address in gdb cast it as a Heap_Error_context
>>> and investigate it.
>>>
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