Re: [External] Re: [PATCH] fuse: add hang check in request_wait_answer()

[Joanne Koong]

On Tue, Dec 23, 2025 at 7:04 PM Zhang Tianci
<zhangtianci.1997@xxxxxxxxxxxxx> wrote:
>
> Hi Joanne,
>
> Thanks your reply,
>
> > Does setting a timeout on fuse requests suffice for what you need?
> > That will detect deadlocks and abort the connection if so.
> >
> The timeout mechanism does not quite meet our expectations,
> because the hang state of the FUSEDaemon may recover in some ways.
> We only expect an alert for the hang event, after which we can manually
> handle the FUSEDaemon and attempt to recover it or abort the connection.
>

Hi Tianci,

That makes sense. In that case, I think it's cleaner to detect and
print the corresponding debug statements for this through libfuse
instead of the kernel.

Thanks,
Joanne

> Thanks,
> Tianci