Re: About Celeron processor memory barrier problem

[Matthias Schniedermeyer <ms@citd.de>]

> >         I found that when I compiled the 2.4 kernel with the option
> >     of Pentium III or Pentium 4 on a Celeron's PC, it could cause  the
> >     system hang at very beginning boot stage, and I found the problem
> >     is cause by the fact that Intel Celeron doesn't have a real memory
> >     barrier,but when you choose the Pentium III option, the kernel
> >     assume the processor has a real memory barrier.
> >     Here is a patch to fix it:
> 
> No.
> 
> The fix is to not lie to the configurator.
> 
> A Celeron isn't a PIII, and you shouldn't tell the configure that it is.
> 
> The whole point of being able to choose the CPU to optimize for is that we
> can optimize things at compile-time.

This is what 2.2.17 thinks about my Celeron 600MHz

processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 8
model name      : Pentium III (Coppermine)
stepping        : 6
cpu MHz         : 601.374
cache size      : 128 KB
fdiv_bug        : no
hlt_bug         : no
sep_bug         : no
f00f_bug        : no
coma_bug        : no
fpu             : yes
fpu_exception   : yes
cpuid level     : 2
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
pat pse36 mmx fxsr xmm
bogomips        : 1199.31






Bis denn

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