On Fri, 2 Mar 2001, Alan Cox wrote:
> [24940903.pdf]
> Table 14 in paticular gives the config bits
ok, thank you. Now I understand (maybe) whats' going on. Linux treated
bits 22,23,24,25 but ignored 27 which it shouldn't have. Now, coupled with
the fact that the problematic box I have
> the bad news to this "rule" is that I just found one "exception". Namely,
> I have Celeron-600/100 and PentiumII-333/66 and both evaluate to
> bus/mul=0/0 even in 4bit bus representation which is impossible. So, this
> is my big stumbling block if you tell me how to overcome
> this, I can ve
> If I extend 'bus' to be 4 bits instead of 2 then I can make it work on all
> of my machines (or all those I tried), of course, extending the buscode[]
> table appropriately.
That would be interesting to see. Certainly the mul code got extended by a bit
later on
> However, the radically broken,
> ah, I see, so we are using the Reserved (14 upwards) bits of the
> MSR_EBC_HARD_POWERON? Ok, so the task is to understand how the bus info is
> encoded.
Well actually they are documented in part by some of the intel and other
docs. But all the docs agree on the bus speed encoding ...
-
To un
Alan,
Those formulae (both 'bus' and 'mul' calculation) are broken, I think.
If I extend 'bus' to be 4 bits instead of 2 then I can make it work on all
of my machines (or all those I tried), of course, extending the buscode[]
table appropriately.
However, the radically broken, imho, thing is th
On Thu, 1 Mar 2001, Alan Cox wrote:
> Please send me the value of your 0x2A MTRR. Because this isnt properly intel
> documented there is a certain amount of research still required.
>
ok, adding this to init_intel():
u32 lo, hi;
rdmsr(0x2A, lo, hi);
printk(KERN_ERR "lo
> > Linux 2.4.2-ac7 reports wrong CPU speed and model name for a Pentium II=
> I
> > correctly detected on, at least, 2.2.18, 2.4.2 and 2.4.2-ac4. The
> > processor is a 600 MHz one, with a 133 MHz front bus.
The model name printing has not changed. Not at all.
> same here with PIII550MHz/100MHz
On Thu, 1 Mar 2001, José Luis Domingo López wrote:
> Linux 2.4.2-ac7 reports wrong CPU speed and model name for a Pentium III
> correctly detected on, at least, 2.2.18, 2.4.2 and 2.4.2-ac4. The
> processor is a 600 MHz one, with a 133 MHz front bus.
same here with PIII550MHz/100MHz bus. Actually,
On Thursday, 01 March 2001, at 01:31:10 +,
Alan Cox wrote:
>
> ftp://ftp.kernel.org/pub/linux/kernel/people/alan/2.4/
>
> 2.4.2-ac7
> o Fix the non booting winchip/cyrix problem (me)
>
Linux 2.4.2-ac7 reports wrong CPU speed and model name for a Pentium III
correctly detect
On Thu, 1 Mar 2001, Ingo Molnar wrote:
> > > o Handle broken PIV MP tables with a NULL ioapic
> >
> > That's not a right fix. [...]
>
> Maciej, it *is* the right fix. These are UP systems not SMP systems, but
> if we boot an SMP kernel then we find a (largely bogus) mptable during the
> scan.
On Thu, 1 Mar 2001, Alan Cox wrote:
> o Handle broken PIV MP tables with a NULL ioapic
That's not a right fix. We should make a check in MP_ioapic_info() and
do not register bogus I/O APICs (hmm, I wonder what the next thing to be
broken in MP-tables is...). We should handle the no I/O AP
On Thu, 1 Mar 2001, Maciej W. Rozycki wrote:
> > o Handle broken PIV MP tables with a NULL ioapic
>
> That's not a right fix. [...]
Maciej, it *is* the right fix. These are UP systems not SMP systems, but
if we boot an SMP kernel then we find a (largely bogus) mptable during the
scan.
Any B
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