site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Hi Josh, Best reagrds Michael On Aug 15, 2005, at 5:24 PM, Josh Graessley wrote: _______________________________________________ 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... thank you very much for the information, so m_expand from bsd/kern/uipc_mbuf.c is always used to allocate mbufs. If I remember correctly, mbufs themselves are stored in clusters. A cluster can be used as a cluster on it's own or it can be used to store mbufs. An mbuf is a fraction of a cluster. If the system runs out of mbufs, it may convert a cluster in to something like 8 mbufs. This email sent to site_archiver@lists.apple.com