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SubjectRe: Strange problem with e1000 driver - ping packet loss
On 6/19/08, Robert Hancock <> wrote:
> Srivatsa Vaddagiri wrote:
> > Hi,
> > I happened to look at a system which was exhibiting poor ping
> > performance with e1000 driver (in 2.6.25) and had some questions regarding
> that.
> >
> > Ping test was done between the system and a laptop, which were connected
> > using a straight ethernet cable. Ping reported round trip times running
> > into seconds (!) and also packet loss.
> >
> > Upon some investigation, I found that the interrupt count field in
> > /proc/interrupts (associated with eth1) is not incrementing as fast as
> > it should. Moreover eth1 interrupt line is shared with the hard disk
> > interrupt (ata_piix) as below:

Just FYI, it seems that more people have the same (?) problem:

It might be worth joining forces to fight down the bug once and for
all if it's still not fixed after one and a half years? Sorry, I
really meant error instead of bug.


"The animistic metaphor of the bug that maliciously sneaked in while
the programmer was not looking is intellectually dishonest as it
disguises that the error is the programmer's own creation."
-- E. W. Dijkstra, EWD1036

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