Messages in this thread | | | Date | Thu, 17 May 2007 13:15:08 -0700 | From | "H. Peter Anvin" <> | Subject | Re: This kernel requires the following features not present on the CPU... (on a VIA C7 CPU) |
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Simon Arlott wrote: > > Is it automatic? I have CONFIG_X86_CMPXCHG=y without cx8 showing in > cpuinfo, and it appears to work fine. > > Will your changes needlessly prevent the kernel running? Would I be > right in thinking that the kernel is successfully using cmpxchg even > though it's considered disabled? I realise people compile kernels for > the wrong CPU but preventing them working when it's been chosen > correctly seems wrong. >
CX8 isn't cmpxchg; it's cmpxchg8b.
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