site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com User-agent: Mozilla Thunderbird 1.0.6 (Windows/20050716) Terry, Michael, Thank you, Alejandro -- Alejandro Palencia Open Studio Networks +34 667 440 770 _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... I made changes to avoid all of the dynamic memory allocations, and changed to static structures. The problem didn't change. It seems to me that when two threads acess the same object (read or write contiguous memory variables) at a time, there is a lock. Is this possible? Things changed when I updated from 10.5.2 to 10.5.4 this morning. It seems that the problem dissapeared, while I am still testing, but after 10 hours it has not arised at all! Do you know if any modification has been done from 10.5.2 to 10.5.4 in this area? This would help me to be confident on the system as it is. This email sent to site_archiver@lists.apple.com