Hello group, Have any major changes been made to the SMP code between 2.6.10 and 2.6.13? After upgrading, it appears that either my two hyper-threaded CPU's are running on a single thread, one of my processors is no longer working or something is eating up 100% of the CPU time on the second processor. I used to see four CPU's in top and htop. top now shows two processors while htop shows four with processors three and four running at 100% all the time. I'm having a difficult time determining which ones are the real CPU's and which are the hyper-threads. Sorting by CPU shows nothing using any more CPU than I would expect (most everything is sitting idle). Please feel free to request any information that would make this easier to debug. Thank you in advance, -- Sean