Re: 2.2.0pre1 OOPS on boot.

H. Peter Anvin (hpa@transmeta.com)
31 Dec 1998 08:13:12 GMT

Followup to: <Pine.LNX.3.96.981230200953.6416G-100000@chiara.csoma.elte.hu>
By author: MOLNAR Ingo <mingo@chiara.csoma.elte.hu>
In newsgroup: linux.dev.kernel
>
>
> On Wed, 30 Dec 1998, Alan Cox wrote:
>
> > We only have a few differences to address in the near time scale, excepting
> > the 386.
> >
> > FPU <-> no FPU
> > RDTSC <-> mb timer
> > FXSAVE <-> FSAVE
> >
> > FXSAVE is figured, RDTSC _was_ sorted, FPU has long been sorted.
>
> add INVLPG and (future) FASTCALL (two versions) to the list. Also add the
> 'wp bit doesnt work' bug workaround, the APIC workarounds. Some of these
> can be addressed dynamically (by adding kernel bloat to handle both
> versions), some cannot.
>

SYSENTER and SYSCALL need to handle regular INT 0x80 system calls as
well for a long time to come.

All of these things fall under the same tent as the FPU emulation:
it's fine to have an optional kernel which is smaller/faster, but
there should be one set of configuration options which work on all
machines.

-hpa

-- 
    PGP: 2047/2A960705 BA 03 D3 2C 14 A8 A8 BD  1E DF FE 69 EE 35 BD 74
    See http://www.zytor.com/~hpa/ for web page and full PGP public key
        I am Bahá'í -- ask me about it or see http://www.bahai.org/
   "To love another person is to see the face of God." -- Les Misérables


-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/