On Wed, Apr 14, 2021 at 03:30:19AM +0000, Kornievskaia, Olga wrote: > On 4/13/21, 7:20 PM, "J. Bruce Fields" <bfields@xxxxxxxxxxxx> wrote: > generic/430 started failing in 4.12-rc3, as of 7c1d1dcc24b3 "nfsd: grant > read delegations to clients holding writes". > > Looks like that reintroduced the problem fixed by 16abd2a0c124 "NFSv4.2: > fix client's attribute cache management for copy_file_range": the client > needs to invalidate its cache of the destination of a copy even when it > holds a delegation. > > [olga] I'm confused what client version are you testing and against what server? I haven't seen generic/430 failing while testing upstream versions against upstream server verions. What should I try (as in what client version against what server version) to reproduce the failure? You can reproduce it with client and server both on rc3. (In more detail: you need a client with 7c1d1dcc24b3, but a server that doesn't yet have 6ee65a773096 "Revert "nfsd4: a client's own opens needn't prevent delegation"". I have a patch that will restore the server's ability to grant delegations to clients with write opens, but this regression was one of the problems I ran across in testing....) --b.
