Messages in this thread |  | | Date | Wed, 31 Oct 2001 08:50:29 -0500 (EST) | From | "Richard B. Johnson" <> | Subject | Re: AMD SMP Support ? |
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On Wed, 31 Oct 2001, [iso-8859-1] Marco Schwarz wrote:
> Hi all, > > I will get some new servers next week and I have two > questions: > > - Does the current kernel support Dual Athlon CPUs ? > > - Is it possible to build one kernel for dual Athlon, > single Athlon, dual PIII and single PIII boxes ? > > I would wait until next week and try it out, but > unfortunately our management asked me about a > statement about this :) (They want to be able to swap > server hardware in case one of the servers breaks - > without any software configuration if possible). > > Thanks in advance, > > Marco Schwarz
You can use a SMP kernel on a single CPU machine with no problems. However, there have been some reported problems trying to use some Athlon "features".
I use this configuration on '486, 586, 686 and the early Athlons It works okay although it certainly might not be "optimum".
# # Processor type and features # # CONFIG_M386 is not set CONFIG_M486=y # CONFIG_M586 is not set # CONFIG_M586TSC is not set # CONFIG_M586MMX is not set # CONFIG_M686 is not set # CONFIG_MPENTIUMIII is not set # CONFIG_MPENTIUM4 is not set # CONFIG_MK6 is not set # CONFIG_MK7 is not set # CONFIG_MCRUSOE is not set # CONFIG_MWINCHIPC6 is not set # CONFIG_MWINCHIP2 is not set # CONFIG_MWINCHIP3D is not set CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_CMPXCHG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y CONFIG_X86_L1_CACHE_SHIFT=4 CONFIG_X86_USE_STRING_486=y CONFIG_X86_ALIGNMENT_16=y CONFIG_TOSHIBA=m # CONFIG_MICROCODE is not set # CONFIG_X86_MSR is not set # CONFIG_X86_CPUID is not set CONFIG_NOHIGHMEM=y # CONFIG_HIGHMEM4G is not set # CONFIG_HIGHMEM64G is not set # CONFIG_MATH_EMULATION is not set # CONFIG_MTRR is not set CONFIG_SMP=y CONFIG_HAVE_DEC_LOCK=y
Compiling a kernel like this will allow you to switch boxes at will.
Cheers, Dick Johnson
Penguin : Linux version 2.4.1 on an i686 machine (799.53 BogoMips).
I was going to compile a list of innovations that could be attributed to Microsoft. Once I realized that Ctrl-Alt-Del was handled in the BIOS, I found that there aren't any.
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