Have you or your client tested in this way with earlier kernels to see if this is a regression? If it is, then you can clone the mainline repository and use 'git bisect' to see what commit causes the failure.
Even though I didn't see a kernel dependency from 3.19 -> 3.16 I can say that digging online re: "nfs slow sync" finds LOTS of references to kernel problems Problem is most of them are really old. For example 2.4.18-4,5: very slow 'sync' nfs writes (~50k/sec) https://bugzilla.redhat.com/show_bug.cgi?id=67199 Makes me wonder if the problem cropped into kernel even earlier. I can't find anything yet that's a definite solution to this -- but 'slow nfs', particularly with 'sync' is a really popular problem. I just don't know yet. LT -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-kernel+owner@opensuse.org