On Tue, 2006-06-27 at 16:48 +0530, Manjunath_Naik wrote: > Hi Jinesh > > Thanks for your response. > > Does this mean that when context switch occurs, the kernel always stores > the FPU registers and status even though the particular process does not > do any floating point operation? exactly the opposite, the kernel does NOT store. and because it doesn't store... if YOU use it in the kernel you overwrite the userspace one... Which is bad. (there's some really subtle issues in addition, like floating point error handling etc) you haven't said what you want to use floating point for.. if you do maybe we can suggest alternative approaches to you... -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/