Re: [RFC PATCH] nfsd: convert the nfsd_users to atomic_t

[ChenXiaoSong]

It seems this patch (or patchset) could resolve the issue.

Thanks for your reply.
ChenXiaoSong.

在 2025/6/20 19:55, NeilBrown 写道:
> The only possible cause that I can find for this crash is that the nfsd
> thread must have still been running when nfsd_shutdown_net() and then
> nfsd_shutdown_generic() were called resulting in the workqueue being
> destroyed.
>
> The threads will all have been signalled with SIGKILL, but there was no
> mechanism to wait for the threads to complete.
>
> This was changed in
>
> Commit: 3409e4f1e8f2 ("NFSD: Make it possible to use svc_set_num_threads_sync")
>
> Sync then threads were stopped synchronously so they were certainly all
> stopped before the workqueue was removed.
>
> NeilBrown