[vortex-bug] transfer errors with 3C905C-TX-M

Michael Marxmeier mike@msede.com
Mon, 04 Sep 2000 22:35:19 MESZ


> 
> On Mon, 4 Sep 2000, Giuseppe Ciaccio wrote:
> 
> > Sergei was talking about file corruption in FTP transfers!  This cannot
> > depend upon the device driver: TCP/IP has well known error detection
> > mechanisms, as it must provide error-free communication.
> > If the reported problem is real and reproducible, it would imply a flaw in
> > the protocol...

To add another data point:

Data corruption using FTP has happened to me to me when using
the older 3x900 and 3c905 cards with the 2.0 and 2.2 kernel.
NFS and ssh always worked without a problem. AFAIR this effect was
reproducable. After changing to a 3x905-C card this no longer happens.

I don't think this is a protocol problem. I would guess its HW
problem or some exceptional condition that the driver did not
handle properly. SMP could be another reason.

> Actually, talking about hardware bugs, memory problems might cause the
> same data corruption. Can you try to run some memory tests ? Running
> Windows on the same computer is NOT a good indication.

Never had problems with stability on this box. So at leadt for
me i don't think it was memory related.


Michael

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Michael Marxmeier           Marxmeier Software AG
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