Re: [gentoo-user] curious thing during download

Re: [gentoo-user] curious thing during download

[Rick van Hattem]

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On Sunday 02 April 2006 18:31, Uwe Thiem wrote:
> Hi folks,
>
> Kernel is 2.6.14-r3. I am using splash and, probably ore important, a
> background picture in a framebuffer on every virtual text console.
>
> A long download is running on one text console (ppp with an analogue
> modem). I am in X and switch back text console to check on the download.
>
> Each and every tie I do that, the download rate drops and stalls while TX
> on the modem goes on flickering. After a short while, stalling is over, the
> download rate jumps to an insanely high value and eventually drops down to
> the modem speed again.
>
> Usually that means an out-of-order package or a package got dropped because
> it was corrupted.
>
> Now y curious questions: Does switching fro X to a text console with
> framebuffer disturbs interrupt handling that badly that I get a buffer
> overrun on the serial port the modem is attached to? From my point of view,
> that is the most likely explanation. Anyone who actually knows what is
> happening?
>
> Uwe
>
> --
> Why do consumers keep buying products they will live to curse?

From my experience switching to and from X will temporarily freeze your system 
and depending on the buffers in your modem you could get a buffer overflow 
there.

I'm not why but I've noticed it aswell (for example while timing some stuff, 
there was a bit of a gap after switching)

-- 
Rick van Hattem	Rick.van.Hattem(at)Fawo.nl

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[gentoo-user] curious thing during download

[Uwe Thiem]

Hi folks,

Kernel is 2.6.14-r3. I am using splash and, probably ore important, a 
background picture in a framebuffer on every virtual text console.

A long download is running on one text console (ppp with an analogue modem). I 
am in X and switch back text console to check on the download.

Each and every tie I do that, the download rate drops and stalls while TX on 
the modem goes on flickering. After a short while, stalling is over, the 
download rate jumps to an insanely high value and eventually drops down to 
the modem speed again.

Usually that means an out-of-order package or a package got dropped because it 
was corrupted.

Now y curious questions: Does switching fro X to a text console with 
framebuffer disturbs interrupt handling that badly that I get a buffer 
overrun on the serial port the modem is attached to? From my point of view, 
that is the most likely explanation. Anyone who actually knows what is 
happening?

Uwe

-- 
Why do consumers keep buying products they will live to curse?
-- 
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