Hi Roger,
Thanks for looking.
I will try NFS v3 with my latency tests running. I did try NFS v3 before
and I "think" there were still desktop lockups but for a much shorter
time. But this is just a feeling.
Current kernel on both systems is: 5.13.19-100.fc33.x86_64.
If I find the time, I will try and add some kernel NFS RPC call timers
with some printk's and maybe try Fedora35 on another system.
Terry
On 05/10/2021 19:53, Roger Heflin wrote:
That network looks fine to me
I would try v3. I have had bad luck many times with v4 on a variety
of different kernels. If the code is recovering from something
related to a bug 45 seconds might be right to decide something that
was working is no longer working.
I am not sure any amount of debugging would help (without having
really verbose kernel debugging).
What is the current kernel you are running and trying a new one might
be worth it. Though I don't see nfs changes/fixes listed in the
5.14.* or 5.13.* kernels changelog in the rpm file (rpm -q
--changelog) and there are only a few listed at kernel.org for those
kernels.
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