Linux NFS client and FreeBSD server strangeness

[Ben RUBSON]

On 04 Apr 2018 20:27, Mike Tancsa wrote:

> Note, doing something like
>
> dd if=/dev/zero of=/backup/test.bin bs=4096 count=5000000

Note that this test may not be really relevant if you have ZFS compression  
enabled.

> I too am using 9000 for the MTU.

Did you try to use smaller MTU ?
Some network adapters are known to have bugs requesting 9K mbufs for large  
MTUs.
Especially Mellanox, not sure about Chelsio though.

My 2 cents :)

Ben