Comment 52 for bug 218126

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chris lea (chris-lea) wrote :

I'm seeing another effect. Not sure if this is the correct bug for it or not, and my apologies if it's not.

I'm running Xen on 32 bit hardy, on an HP Proliant DL 140 machine. Using Hirano's kernel or the 2.6.24-17-xen from hardy-upcoming, networking "works". But only sort of. If I try and transfer a file of any appreciable size (say 10M) between any of the domU using any protocol, the network stalls out after about 2M go through. If it's only a very small file (say 100k) it will make it.

All the domU are in nat mode and are in the 192.168.1.0/24 IP space.

Transferring files between domU and dom0 works fine.

If I disable TCP checksumming as noted here:

http://lists.xensource.com/archives/html/xen-users/2007-09/msg00584.html

then I can transfer files around. But, the lack of checksumming makes all sorts of other things break.

I'm not sure what other information would be helpful, but I'm happy to provide it if anybody lets me know. I'm attaching my xend-config.sxp file.