Re: Diagnosing memory problems
Re: Diagnosing memory problems
- Subject: Re: Diagnosing memory problems
- From: Rob Petrovec <email@hidden>
- Date: Tue, 27 Nov 2018 16:53:26 -0700
Actually, you want the Zombies tool. That finds overreleased objects like ones
that cause the spew you are seeing.
—Rob
> On Nov 27, 2018, at 4:52 PM, Rob Petrovec <email@hidden> wrote:
>
> Check out the Leaks tool in Instruments (inside Xcode.app)
>
> —Rob
>
>
>> On Nov 27, 2018, at 3:56 PM, Casey McDermott <email@hidden> wrote:
>>
>> Our main window has a tool bar across the top, an outline view on the left,
>> and a tab view on the right. Choosing an item from the outline view fills a
>> data entry screen into a new tab on the right.
>>
>> We started out using OS 10.11, but just switched to newer OS versions.
>> 10.12 has a couple display quirks but runs OK. In 10.13 and newer,
>> switching tabs often crashes. It gives a warning about releasing a data
>> entry field that is already released.
>>
>> In C++, we would diagnose this with a breakpoint in the destructor and then
>> check the stack trace. But with ARC, a breakpoint at dealloc just shows
>> performDelayedCleanup and then main. No clues to what's wrong.
>>
>> Is there lore or are there tools for tracking object lifetimes in Obj-C/ARC?
>>
>> Anything that changed in 10.13 that might be biting us?
>>
>> Thanks,
>>
>> Casey McDermott
>> TurtleSoft.com
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