[GSoC] libmm project status

[Gedare Bloom]

name it smpmm01

On Tue, Jul 9, 2013 at 11:59 AM, Hesham Moustafa
<heshamelmatary at gmail.com> wrote:
>
>
>
> On Tue, Jul 9, 2013 at 3:16 AM, Gedare Bloom <gedare at rtems.org> wrote:
>>
>> I suggest we move mmtest3 into smptests. The mmtests should run on all
>> targets, just some targets will only have stubs without functionality. The
>> goal in the end is a usable high level api for all targets if it is
>> possible.
>
> Actually I was confused about where is the best place for mmtest3 and I
> thought of smptests too. Should I move it with the same name ?
>>
>> Until we have bsp specific tests it will be hard to construct good generic
>> tests.
>>
>> On Jul 8, 2013 8:07 PM, "Rempel, Cynthia" <cynt6007 at vandals.uidaho.edu>
>> wrote:
>>>
>>> Hi Hesham Moustafa,
>>>
>>> Thanks for adding the .doc s :)
>>>
>>> Is there a way to conditionally build the mmtests based on whether libmm
>>> is being built?
>>>
>>> My initial thought is something like an AM_CONDITIONAL
>>>
>>> http://www.gnu.org/software/automake/manual/html_node/Subdirectories-with-AM_005fCONDITIONAL.html
>>> Although another way to conditionally build the tests may be better...
>>>
>>> Ideally if we went that route (and if feasible), if there was a
>>> conditional being used for building libmm, we would use the same conditional
>>> for the libmm tests...
>>>
>>> That might make it a little easier to commit these tests incrementally
>>> into RTEMS... and thus reduce the number of patches at the end of the summer
>>> :)
>>>
>>> Thanks!
>>> Cindy
>>> ________________________________________
>>> From: rtems-devel-bounces at rtems.org [rtems-devel-bounces at rtems.org] on
>>> behalf of Rempel, Cynthia [cynt6007 at vandals.uidaho.edu]
>>> Sent: Monday, July 08, 2013 3:55 PM
>>> To: Hesham Moustafa; rtems-devel at rtems.org
>>> Cc: Gedare Bloom
>>> Subject: RE: [GSoC] libmm project status
>>>
>>> Hi,
>>>
>>> Thanks for providing the link directly to the testcases!
>>> Could you copy the information about each test into:
>>>
>>> mmtest1/mmtest1.doc
>>> Simple tests that tries to install memory management entries
>>>
>>> mmtest2/mmtest2.doc
>>> + Install entries with specific memory attributes (e.g read only region)
>>> :
>>> + Check for memory protection violations (writing to read only blocks)
>>> + Reading from read only blocks.
>>> + Write/Read to/from unmapped region (error!).
>>> + Write to a valid entry that was installed and then uninstalled
>>> (error!).
>>>
>>> mmtest3/mmtest3.doc
>>> + Tests for libmm behavior on SMP environments.
>>> + Create tasks for each core and start it.
>>> + Check for memory consistency and page tables and memory attributes
>>> validity.
>>>
>>> That way we can quickly identify what each test does in 5 years... Good
>>> job with the documentation :)
>>>
>>> Cindy
>>> ________________________________________
>>> From: rtems-devel-bounces at rtems.org [rtems-devel-bounces at rtems.org] on
>>> behalf of Hesham Moustafa [heshamelmatary at gmail.com]
>>> Sent: Monday, July 08, 2013 3:39 PM
>>> To: rtems-devel at rtems.org
>>> Cc: Gedare Bloom
>>> Subject: [GSoC] libmm project status
>>>
>>> Hi all,
>>>
>>> I have posted a new thread to my blog that contains a brief introduction
>>> to libmm and latest updates, here is the thread [1] Please take a look.
>>>
>>> TODO: port libmm for Raspberry PI board on real hardware.
>>>
>>> Questions :
>>>
>>> I have created a new test case at libtests called mmtest3 [2] which
>>> simulate SMP use case on QEMU/Realview. It simply tries to invoke the same
>>> task (which calls libmm function) for each core. There is a fatal error at
>>> startup that branches to data exception handler but I am not sure why.
>>> Please take a look and tell me if I am doing something wrong with that test
>>> case.
>>>
>>> Other test cases (mmtest1, mmtest2) run successfully on the same
>>> platform.
>>>
>>> [1]
>>> http://heshamelmatary.blogspot.com/2013/07/gsoc-2013-libmm-for-rtems.html
>>> [2]
>>> https://github.com/heshamelmatary/rtems-gsoc2013/tree/low-level-libmm/testsuites/libtests/mmtest3
>>>
>>> Regards,
>>> Hesham
>>>
>>>
>>> _______________________________________________
>>> rtems-devel mailing list
>>> rtems-devel at rtems.org
>>> http://www.rtems.org/mailman/listinfo/rtems-devel
>>>
>>>
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