[Rubycocoa-talk] A potential bug to watch out for...

[Allison N. <dem...@me...>]

Hi everyone,

I installed OS X 10.5.7 yesterday, as well as MacRuby 0.4.  Since  
then, whenever I run one of my RubyCocoa apps, I get the following bug:

[BUG] object allocation during garbage collection phase
ruby 1.8.6 (2008-08-11) [universal-darwin9.0]

The application has been stable for over 6 months.  Just to be sure, I  
recovered a version from 3 months ago off TimeMachine, and it still  
doesn't work, so the bug is definately coming from the environment,  
not the app.  Worse yet, the same bug appears in multiple different  
places in the app, not just in one particular part of the code, for  
example during a call to an NSEncoding method, or whilst handling an   
NSTimer event.

Checking the console logs, I now see this appearing all of the time  
for RubyCocoa apps, when it has never before appeared in the logs:
16/05/09 22:33:20 [0x0-0xa60a6].com.apple.Xcode[2048]  
Xcode(2048,0xb0103000) malloc: free_garbage: garbage ptr = 0x45d8240,  
has non-zero refcount = 1

I'll typically see this trace about 50 times during the execution of  
any RubyCocoa app.

Apparently this is a bug in the Ruby interpretor.  I don't know which  
of these installs (10.5.7 or MacRuby) borked my machine, or indeed if  
it was an interaction beween the two of them, but be aware that you  
may have this problem before installing either.

Alli