Re: [fuse-devel] Debugging a stale kernel cache during file growth

Miklos Szeredi
2026-04-16T12:12:54Z

On Thu, 16 Apr 2026 at 09:24, Amir Goldstein <amir73il@gmail.com> wrote:

> > I've recently encountered a weird issue with JuiceFS [1], a network FS
> > which uses FUSE. tl;dr: when a file was being slowly appended, a reader
> > of the same file on another host would periodically read a block of zero
> > bytes instead of the actual data.

Thanks for the report.

I wonder if we could clear PG_uptodate on the page which had its zero
bytes exposed by the i_size increase?

Willy?

Thanks,
Miklos