Fwd: Using static NSString as observation context

FROM : Shawn Erickson
DATE : Sun May 18 20:32:27 2008

oops meant to copy the list...

On Sat, May 17, 2008 at 6:59 AM, Christiaan Hofman <<email_removed>> wrote:
> I have recently changed some KVO observation code to us a static NSString as
> the context when registering as KVO observation. However now that seems to
> have introduced a crasher when removing the observer, at least on a Core Duo
> Intel machine. PPC does not seem to have any problem. So is there some
> problem using NSStrings as observation context for Intel? The Sketch sample
> code also uses those.


Can you be more specific about the crash you are seeing? (backtrace, etc.)

Are you removing the observation of the same key more then once? I
have seen a over release bug in the Cocoa framework in situations like
this (trying to locate my information on that issue...).

-Shawn