Re: [liblo] Bug#721617: pyliblo: FTBFS on sparc: testSendOthers (unit.ServerTestCase) ... Bus error

On Thu, Sep 5, 2013 at 6:30 PM, Felipe Sateler <fsa...@gm...> wrote:
> On Thu, Sep 5, 2013 at 5:10 AM, Stephen Sinclair <rad...@gm...> wrote:
>> On Tue, Sep 3, 2013 at 2:42 AM, Felipe Sateler <fsa...@de...> wrote:
>>> On Mon, Sep 2, 2013 at 8:16 PM, Felipe Sateler <fsa...@de...> wrote:
>>>> On Mon, Sep 2, 2013 at 7:33 PM, Felipe Sateler <fsa...@de...> wrote:
>>>>> Hi liblo devs,
>>>>>
>>>>> The python liblo wrapper has a test suite that has uncovered a bug in
>>>>> liblo.
>>>>
>>>> I just tried current git (5a7a54b4a0a) and the test provided by
>>>> Sebastian continues to fail.
>>>
>>> It appears the problem is that in sparc, you can't just say
>>> *(datatype*)data. Depending on datatype, 'data' has to be aligned at a
>>> certain number of bytes from the original block (4 for int, 8 for
>>> int64):
>>>
>>> char* src = something();
>>> int* tmp = (int*)(src + 1); // If 1 is replaced by 4, no bus error.
>>> *src = 1; // Bus error here.
>>> int a = *src; // This yields bus error too
>>>
>>> So, at least lo_message_add_data (plus all its users),
>>> lo_arg_pp_internal and lo_arg_host_endian need to change to support
>>> sparc.
>>>
>>
>> Any idea how to get a sparc test environment running?  Is there an
>> emulator I can use for example?
>
> QEMU should support sparc targets. I believe qemu-system-sparc is the
> package (in Debian) you can use to create a sparc system. At [1] there
> appear to be instructions for setting up a debian qemu sparc system.
> Alternatively, we could request access for you on some debian porter
> machine. This could take a while, though, and requires some steps to
> be taken[2]

Okay, thank you.  I have tried for some time today to get
qemu-system-sparc running actually, and ran into a problem where the
bios works but then it boots to a black screen and doesn't display the
debian installer.

In any case, I'll try some more to get it working before resorting to
complicated administrative measures :)