Bogus 'TCPv4 Bad checksum' messages with 2.1.89? (was Re: poor performance when swapping)

Benjamin Redelings I (bredelin@UCSD.Edu)
Tue, 10 Mar 1998 17:00:27 -0800


Hi Woody,

Hmm.... Actually, I've got 2.1.89 by now, (compiled with the latest
egcs snapshot, w/o 'fno-strength-reduce', and w/ O9) and I haven't had
much trouble with swapping or anything (no, I don't have rik van riel's
latest 2-line patch). I'll have to believe you about 2.0.33 being
better, as I haven't run it in a while, but 2.1.89 is certainly better
for me than some of the recent kernels. I have 64Mb RAM and a 34 Mb
swap partition, but I don't tend to use it much. At least, things no
longer contually swap or page while running, which they were doing
before... Then again, I'm not stressing my system that hard. At least
it finally realizes that!!!!
I haven't had that much problem with networking myself. I've got a
33.6k modem which is usually running at 26.4 :) The only problem that I
can obviously see is that I get a lot of 'TCPv4 bad checksum' messages
from everybody, which I don't remember on 2.0.33. That might relate to
your problem... or it might relate to the possibility that I have line
noise now :) Still I'm pretty sure that I get it only from certain
hosts.
I noticed that Alan Cox was looking for a bug that rejected packets
with padding or something, that was causing a knfsd bug (I think).
Perhaps these are related...

-BenRI

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