On Wed, Jul 31, 2024 at 12:41 PM David Howells <dhowells@xxxxxxxxxx> wrote: > > ------------[ cut here ]------------ > > WARNING: CPU: 13 PID: 3621 at fs/ceph/caps.c:3386 > > ceph_put_wrbuffer_cap_refs+0x416/0x500 > > Is that "WARN_ON_ONCE(ci->i_auth_cap);" for you? Yes, and that happens because no "capsnap" was found, because the "snapc" parameter is 0x356 (NETFS_FOLIO_COPY_TO_CACHE); no snap_context with address 0x356 could be found, of course. Max