Messages in this thread | | | Date | Thu, 17 May 2007 23:16:58 +0100 | From | Simon Arlott <> | Subject | Re: This kernel requires the following features not present on the CPU... (on a VIA C7 CPU) |
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On 17/05/07 21:15, H. Peter Anvin wrote: > 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.
Ok, but I have CONFIG_X86_CMPXCHG64=y too.
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