Re: NexGen detection

Alan Cox (alan@lxorguk.ukuu.org.uk)
Fri, 14 Apr 2000 14:48:06 +0100 (BST)

> One question though: if you do CPUID on a processor which doesn't support
> it what happends? (Some early nexgens didn't support the CPUID). Mine
> survives and displays itself as vendor_id: NexGenDriven in proc.

It reboots. Thats actually why the current 2.3.x code crashes if you have
a very early Cyrix/TI 486DLC

> Any reasons not to make a patch which tries to detect a nexgen using CPUID?

If the chip indicates CPUID is supported we will try CPUID

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