On Fri, 21 Dec 2001, Norm Dresner wrote: > Are you running X-window? If so, there's probably be a large number > of FP calculations you're unaware of. > Any sound cards? Things like that are often stealth uses of > resources. > > The real question isn't having your thread's FP registers saved for > it, but the possibility that your thread my corrupt the FPU state of > any other process using it.
Really? I guess that makes sense, since really the linux kernel was completely pre-empted without its knowledge, and the thing that is responsible for restoring the cpu state so the kernel can resume execution -- namely the rt-linux bits -- are operating under the assumption that you "didn't under any circumstances touch the FPU" and thus they don't bother restoring its state. Makes perfect sense.. is this correct? -Calin -- [rtl] --- To unsubscribe: echo "unsubscribe rtl" | mail [EMAIL PROTECTED] OR echo "unsubscribe rtl <Your_email>" | mail [EMAIL PROTECTED] -- For more information on Real-Time Linux see: http://www.rtlinux.org/
