Subject: Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

El mar, 26-05-2009 a las 17:23 +0200, Alejandro Riveira Fernández
escribió:
> El mar, 26-05-2009 a las 14:45 +0200, Ivo van Doorn escribió:
> > Hi,
> >
> [...]
> >
> > Ok, that means it is the wrong script, try the other one from the download
> > location you previously refered to. I changed the API some time ago, and
> > am not sure which stable release that change will be in.
>
> I inline the diff between the two dumps the dumps are attached to the
> mail message

ICMP ECHO REQUEST

Any advance?

>
>
> --- reg_dump_bad.txt 2009-05-26 17:16:03.078863719 +0200
> +++ reg_dump_good.txt 2009-05-26 16:48:07.654117749 +0200
> @@ -1,4 +1,4 @@
> -kernel: 2.6.29.4-00257-g186f9b1
> +kernel: 2.6.29.4-00258-ga2c0a36
> driver: rt2500pci
> version: 2.2.3
> compiled: May 26 2009 13:05:03

[...]

> Alejandro
--
The idea that Bill Gates has appeared like a knight in shining armour to
lead all customers out of a mire of technological chaos neatly ignores
the fact that it was he who, by peddling second-rate technology, led
them into it in the first place.
Douglas Adams


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2009-06-02 16:34:50

by Ivo Van Doorn

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Subject: Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

On Tuesday 02 June 2009, Alejandro Riveira Fern?ndez wrote:
> El mar, 26-05-2009 a las 17:23 +0200, Alejandro Riveira Fern?ndez
> escribi?:
> > El mar, 26-05-2009 a las 14:45 +0200, Ivo van Doorn escribi?:
> > > Hi,
> > >
> > [...]
> > >
> > > Ok, that means it is the wrong script, try the other one from the download
> > > location you previously refered to. I changed the API some time ago, and
> > > am not sure which stable release that change will be in.
> >
> > I inline the diff between the two dumps the dumps are attached to the
> > mail message
>
> ICMP ECHO REQUEST
>
> Any advance?

Well I checked the dumps from the bugreport, but like I expected
the only difference is that with the slow speed the correct value
is written, and the fast speed the wrong value is written.
I couldn't find anything else interesting in it... :(

Ivo

Subject: Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

El mar, 02-06-2009 a las 18:34 +0200, Ivo van Doorn escribió:
> On Tuesday 02 June 2009, Alejandro Riveira Fernández wrote:

[...]

> > ICMP ECHO REQUEST
> >
> > Any advance?
>
> Well I checked the dumps from the bugreport, but like I expected
> the only difference is that with the slow speed the correct value
> is written, and the fast speed the wrong value is written.

So my chip works better with incorrect values written in its registers?

/me confused

What about other chips out there do they prefer wrong values too ;)
Maybe what we thought wrong values are not that wrong ?

/me stops rambling

> I couldn't find anything else interesting in it... :(

Thanks anyway.

>
> Ivo
--
OOP to me means only messaging, local retention and protection and
hiding of state-process, and extreme late-binding of all things. It can
be done in Smalltalk and in LISP. There are possibly other systems in
which this is possible, but I'm not aware of them.
-- Alan Kay --


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2009-06-02 21:53:54

by Ivo Van Doorn

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Subject: Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

On Tuesday 02 June 2009, Alejandro Riveira Fern?ndez wrote:
> El mar, 02-06-2009 a las 18:34 +0200, Ivo van Doorn escribi?:
> > On Tuesday 02 June 2009, Alejandro Riveira Fern?ndez wrote:
>
> [...]
>
> > > ICMP ECHO REQUEST
> > >
> > > Any advance?
> >
> > Well I checked the dumps from the bugreport, but like I expected
> > the only difference is that with the slow speed the correct value
> > is written, and the fast speed the wrong value is written.
>
> So my chip works better with incorrect values written in its registers?

Apparently, probably because some other register is set to an incorrect value,
but I have no idea which one that would be.

> What about other chips out there do they prefer wrong values too ;)
> Maybe what we thought wrong values are not that wrong ?

They are wrong. That exact register initialization is pretty straightforward
in the original Ralink driver on which rt2x00 is based.

Ivo

Subject: Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

El mar, 02-06-2009 a las 23:53 +0200, Ivo van Doorn escribió:

> > So my chip works better with incorrect values written in its registers?
>
> Apparently, probably because some other register is set to an incorrect value,
> but I have no idea which one that would be.

Could the fact that i dual boot with windows (and use the windows
driver) have someting to do with it ?

>
> > What about other chips out there do they prefer wrong values too ;)
> > Maybe what we thought wrong values are not that wrong ?
>
> They are wrong. That exact register initialization is pretty straightforward
> in the original Ralink driver on which rt2x00 is based.
>
> Ivo
--
"I contend that we are both atheists. I just believe in one fewer god
than you do. When you understand why you dismiss all the other possible
gods, you will understand why I dismiss yours."
Stephen Henry Roberts


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2009-06-03 05:45:53

by Ivo Van Doorn

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Subject: Re: [2.6.27-rc7 vs 2.6.29 Regresion] Wifi Network Slownes rt2500pci

On Wednesday 03 June 2009, Alejandro Riveira Fern?ndez wrote:
> El mar, 02-06-2009 a las 23:53 +0200, Ivo van Doorn escribi?:
>
> > > So my chip works better with incorrect values written in its registers?
> >
> > Apparently, probably because some other register is set to an incorrect value,
> > but I have no idea which one that would be.
>
> Could the fact that i dual boot with windows (and use the windows
> driver) have someting to do with it ?

Don't think so, unless you notice a difference in behavior when you reboot
from Windows to Linux compared to making a cold-boot or reboot from Linux
to Linux.

Ivo