Messages in this thread | | | Date | Mon, 30 Jan 2006 11:03:06 -0800 | From | thockin@hockin ... | Subject | Re: 2.6.15.1: UDP fragments >27208 bytes lost with ne2k-pci on DP83815 (was Re: persistent nasty hang in sync_page killing NFS (ne2k-pci / DP83815-related?), i686/PIII) |
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On Mon, Jan 30, 2006 at 05:31:24PM +0000, Nix wrote: > ... you are quite right. I'm mounting with an rsize and wsize of 32768 > (i.e., the default negotiated between a recent Linux NFS client and > kernel server), and, completely consistently, 31504 bytes are sent and > *only 27208 bytes are received*. This is so consistent that there's no > way that this could be due to network congestion (unless it's getting > jammed up inside the receiving NIC or something: it's an NE2K card and > they're rather crap so maybe the card is just too slow: my determination > to replace the card has just gone up a notch. But nonetheless if it was > getting lost by the card I'd see TCP retransmissions, which `netstat -s' > assures me I do not). > > This explains why I don't see a problem with DNS: the number of DNS > packets >27208 bytes can be counted on the fingers of one foot. > > Captures are available, but I gathered about half a minute's traffic > so they're quite large (1Mb apiece). > > Tim? Any ideas? Is anyone else with this card seeing this problem?
I've never heard anything like that. I don't have many of these cards around, but Cobalt shipped tens of thousands, and I don't hear of anything resembling this.
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