Thanks Paul,
I have changed the interrupts, but the problem is not solved. I will think
more about the problem.
Thanks,
Anna
Paul Mackerras escribi�:
> Anna Calveras <[EMAIL PROTECTED]> wrote:
>
> > Now, I'm working with the Open Linux Caldera 1.3 (kernel 2.0.35)
> > implementation, and I have detected an abnormal behaviour of TCP over
> > the PPP serial link. The
> > test environment is a ftp source sending packets through the serial link
> >
> > (we encapsulate data by PPP), through a NULL modem link. I capture
> > traces using the tcpdump.
>
> It looks as if you were using tcpdump on the side which was receiving
> the ftp file (147.83.40.121), and that there were some packets dropped
> at the ppp level. At a guess, I would say that you have an IDE disk
> and that the IDE driver is set to have interrupts masked during IDE
> disk I/O operations (hdparm -u0 /dev/hda), and that this is causing
> serial overruns. Try using `hdparm -u1 /dev/hda' and see if that
> helps.
>
> Paul.
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-ppp" in
> the body of a message to [EMAIL PROTECTED]
-
To unsubscribe from this list: send the line "unsubscribe linux-ppp" in
the body of a message to [EMAIL PROTECTED]
