Re: [BUG] NFSv4.1 client hang in nfs4_drain_slot_tbl under concurrent workload against Windows NFS server

[Lionel Cons]

On Wed, 6 May 2026 at 09:49, 郭玲兴 <guolingxing@xxxxxxxxxx> wrote:
>
> Hi,
>
>
> We encountered a reproducible NFSv4.1 client hang issue under concurrent workload.
>
>
> Environment:
> - Two independent Linux clients (VMs)
> - Both mount the same Windows NFS server (NFSv4.1)
> - Kernel version: 6.1.78
> - Mount options: vers=4.1,soft,proto=tcp,timeo=60,retrans=10

Which version of WindowsServer do you use, e.g what does the "ver"
command in cmd.exe output? How did you set up the user accounts, and
which authentication (AUTH_SYS, GSS, ...) do you use?
Which CPU architecture do you use? How much memory do you have on the
Linux NFS client?

Lionel