Re: An interesting anomaly in NFS client...
Date: Thu, 07 Nov 2024 21:59:36 UTC
On Thu, Nov 7, 2024 at 9:34 AM George Neville-Neil <gnn@neville-neil.com> wrote: > > > > On 7 Nov 2024, at 4:15, Mark Saad wrote: > > >> > >> On Nov 7, 2024, at 12:29 AM, Andriy Gapon <avg@freebsd.org> wrote: > >> > >> On 07/11/2024 02:43, George Neville-Neil wrote: > >>> Howdy, > >>> We've been digging into an interesting possible issue in the FreeBSD NFS client. Here is the scenario. I have a FreeBSD VM on my Mac, the Mac is the NFS server, the VM is the client. > > > > What are you using to run the vm ? What architecture is the vm ? What about the Mac ? > > qemu, aarch64, M3 Mac. > > I doubt this is the source of the issue. > > I was poking through the code and I wonder if a slight time skew might be an issue. I'm going to check into that. The VM and the Mac both us NTP to stay in sync with the world, but who knows... Hi George, I'll take a look at the packet trace later, but... If you can easily reproduce the issue, do a: # nfsstat -E -c -z - before reproducing it, and a # nfsstat -E -c - after. Then look at the Cache Info: at the end of the output. rick > > Best, > George >