On Wed, 2010-04-07 at 23:33 +0200, gg@xxxxxxxxxxx wrote: > Some more info on the machines in question. > > server: gentoo linux 2.6.29 kernel patched for R4 > .net-fs/nfs-utils-1.2.1 Recently added nfs4 to existing nfs3 in kernel. > This did not seem to improve/deteriorate the problem. This has been an > issue ever since I used nfs to remote boot the client. > > Client. ARM SBC also running 2.6.29 nfs3. Similar issues seen when > running manufacturer's 2.4 kernel. Suggests problem is on server. > > Redboot bootstrap loads kernel via http then boots with nfsroot supplied > by server. > > All specific issues related here are as seen yesterday with both running > 2.6.29. > > The set up is damn near unusable as it is behaving now . Files are > constantly out of sync. Changes seem to stay or disappear in a more or > less arbitrary fashion (ie no percievable repeatable pattern or cause). > Files often get some kind of merge state which is neither the state on > the server , nor the last saved state on the client. > > /dev/root on / type nfs > (rw,vers=2,rsize=4096,wsize=4096,namlen=255,hard,nointr,nolock,\proto=udp,timeo=\ > 11,retrans=3,sec=sys,addr=192.168.1.3) > > I note vers=2 here, does this maybe indicate some trouble with the > initial negotiation and fallback to nfs2 ? > > I don't have one clear , reproducible problem because the results are so > erratic. But just editting a file with vi on the client and reopening it > will give incorrect results 8 time out of 10. > > The reboot issue killed me. I thought is desperation that that would at > least mean I got a clean copy. OK, so clearly not a userspace NFS issue then. Just out of interest, are you able to reproduce this problem with other underlying filesystems? Reiser4 has never been merged into the mainline kernel, so I doubt that any one of us has a test setup. Cheers Trond -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
