Re: NSWindowController and nib in framework
Re: NSWindowController and nib in framework
- Subject: Re: NSWindowController and nib in framework
- From: Jeff Johnson <email@hidden>
- Date: Wed, 26 Sep 2012 20:10:32 -0500
On Sep 26, 2012, at 12:51 PM, Quincey Morris wrote:
> On Sep 26, 2012, at 10:08 , Kyle Sluder <email@hidden> wrote:
>
>> Can you log +[NSBundle allBundles] and/or use Instruments to see what file access Foundation is performing and what responses it's getting back?
>
> The difficulty is that this exception has never happened to me during development. By chance (maybe), it happened for 2 customers yesterday -- though it had been fine earlier in the day for one of them -- and when I sent them debug versions with NSBundle logging code the problem disappeared. Of course that made them happy ("fixed!"), but it didn't really get me anywhere.
>
> I'm wondering, somewhat randomly, whether this is not something asynchronous, but perhaps something subtler like a missing write barrier. For example, if a separate process is involved in either loading the framework or loading the nib, and there's a missing write barrier for a value being returned to the app process, so that the processor caches were inconsistent, then it would only fail if the separate process happened to run in a different core and would only fail for a short while till the caches were consistent again. But this is beyond my competence, so it's probably just a fantasy.
Is your app distributed as a zip file?
I had a similar bizarre issue with NSBundle a number of months ago, and it turned out that the problem occurred when the app was unzipped using The Unarchiver. Unzipping with the built-in Archive Utility fixed the problem. So you might ask your customers about that.
-Jeff
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