On 22, Dec, 2011, at 03:32 PM, Mike Abdullah wrote:
>
> On 22 Dec 2011, at 14:03, Martin Hewitson wrote:
>
>>
>> On 22, Dec, 2011, at 02:39 PM, Mike Abdullah wrote:
>>
>>> Did you actually write this app to be dual-mode, or are you under the
>>> impression that turning off garbage collection will magically fix things?
>>
>> To be honest, I wrote the app assuming garbage collection was off. I think
>> it must have got turned on by mistake, perhaps during the move to Xcode 4.
>> Not sure.
>>
>> I am under the impression (according to what others have written) that
>> turning off garbage collection will stop the crashes in the garbage
>> collection queue. I think this is a reported bug, but I didn't follow that
>> thread very long. I just was surprised to find garbage collection on in the
>> app, so I switched it off. This revealed the bug, which I'd like now to fix,
>> of course.
>
> I see. Well, turning it off will certainly fix that particular crash. But it
> doesn't surprise me at all that an app which has had the safety net of GC for
> a while will have picked up some memory management errors. The static
> analyzer may well find a lot of them.
>
Thanks for all your advice. A combination of the zombies instrument and the
static analyzer helped me track down all the bugs that had crept in while
operating with the safety net of garbage collection.
Martin
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Martin Hewitson
Albert-Einstein-Institut
Max-Planck-Institut fuer
Gravitationsphysik und Universitaet Hannover
Callinstr. 38, 30167 Hannover, Germany
Tel: +49-511-762-17121, Fax: +49-511-762-5861
E-Mail: [email protected]
WWW: http://www.aei.mpg.de/~hewitson
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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