On Friday, October 25, 2002, at 02:17 AM, Michael Cashwell wrote: And lastly, whatever the solution to that is ("kernel threads can't be preempted" or "use splnet() / splx()", or something else), what about paths into my NKE that are really user threads that have called into the kernel (through the network stack)? (Can that happen or is everything in the kernel run on a kernel thread with the "call" handled via a kernel thread blocking on a queue?) If it can happen, do I need to consider such threads as different from native kernel threads as far as preemption in my NKE goes? If I remember correctly what I saw in xnu, splnet and splx are just doing nothing. _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.