Messages in this thread | | | Date | Thu, 15 Oct 1998 08:49:01 -0400 (EDT) | From | "Mike A. Harris" <> | Subject | Re: TCP bad checksum with 2.1.125 |
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On Mon, 12 Oct 1998, Peter Loje Hansen wrote:
>> TCPv4 bad checksum from 209.133.83.18:0050 to >> 206.248.78.137:0431, len=632/632/652 >> TCPv4 bad checksum from 199.183.24.237:0050 to >> 206.248.78.137:0445, len=1480/1480/1500 >> >> >> I don't know if this is a bug, or just an informative message, so >> I leave it to you all to decide. >> >> I'm using 2.1.125 compiled for uniprocessor on an AMD-K6-200. >> >> If any other info is needed, let me know. > >I'm having the same problem, and I think it must be a bug because I >saw my first corrupted ftp transfer ever. > >The problem only occurs when connecting to a customers "new" server, >a Digital 3000R/SMP. The NIC is A DE434/5: > >eth0: DE434/5 at 0x7400 (PCI bus 0, device 10), h/w address 08:00:2b:e6:a5:14, > and requires IRQ15 (provided by PCI BIOS). >de4x5.c:V0.542 1998/9/15 davies@maniac.ultranet.com > >I have made some tests with 2 local machines which both have 3c509 NIC's. > >local 3000R >2.1.124 <-> 2.1.125 TCPv4 bad checksum >2.1.125 <-> 2.1.125-SMP TCPv4 bad checksum >2.1.125 <-> 2.1.125-UP TCPv4 bad checksum >2.0.33 <-> 2.1.125-SMP OK >2.0.33 <-> 2.1.125-UP OK > >local1 local2 >2.1.125 <-> 2.1.125 OK > >I suspect it has something to do with changes made to >linux/drivers/net/de4x5.c in patch-2.1.125.gz? > >But why does the errors not show up when connecting from 2.0.33? > >Can you see the same pattern?
I don't use 2.0.33. I use 2.0.35, 2.1.125. I only get trouble in 2.1.125. I haven't tested any other kernels prior to 2.1.125 because necessary features didn't work for me until 2.1.125. Now I'm back to 2.0.35 until 126 comes out.
TTYL
-- Mike A. Harris - Computer Consultant - Linux advocate
Linux software galore: http://freshmeat.net
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