heap block not aligned

[Gerald Needell]

If I understand your question correctly, the offending code is a call to :
_Heap_Free( &_Workspace_Area, block)

thsi is called from _Workspace_Free which was called by 
_Thread_Stack_Free    called by
_Thread_Close  called by
_ rtems_task_delete

so I guess it is block taht is getting clobbered. ITs starting address 
in _Heap_Free is reported to be 0x23ebec6  which is clealy not word 
aligned.

Thanks - Jerry

BTW how are the signups for the class going.

Joel Sherrill wrote:

> 
> Gerald Needell wrote:
> 
>>I am getting a memory alignment error (BSP - ERC32) in a call to
>>_Heap_Is_Block_free. THis only occurs if I use the "debug" version of
>>RTEMS (I am using. 4.5.1 pre 3). The failure occurs when I try to delete
>>the "Init" task. I have traced the code and indeed the pointer the_block
>>is set to a non word aligned value. Any clues how to proceed with this?
>>
> 
> What logical piece of data is being freed?  The stack, etc.
> 
> I would tend to think that something is corrupting the pointer to
> be freed.  For example, RTEMS returns the stack using a pointer
> it stored away at init time.  If that gets corrupted all bets
> are off.
> 
> Once we know what logically is being returned, we can monitor
> that location in memory and binary search in on the corrupting point.
> 
> 
>>thanks - Jerry
>>--
>>_______________________________________________________________________
>>Jerry Needell                     | Internet: jerry.needell at unh.edu
>>Space Science Center/Morse Hall   | Voice: (603) 862 2732
>>University Of New Hampshire       | FAX:   (603) 862 0311
>>Durham, NH 03824                  |
>>
> 



-- 
_______________________________________________________________________
Jerry Needell                     | Internet: jerry.needell at unh.edu
Space Science Center/Morse Hall   | Voice: (603) 862 2732
University Of New Hampshire       | FAX:   (603) 862 0311
Durham, NH 03824                  |