[Bug 249871] NFSv4 faulty directory listings under heavy load

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249871

--- Comment #19 from Rick Macklem <rmacklem at FreeBSD.org> ---
Well, I was going to suggest trying the "readahead=0" mount
option on a client (which disabled read ahead, including for
directory blocks).
Then I discovered the code didn't allow that.
So, first you'll need to apply the simple patch
"allow readahead=0 NFS mount option" and
then you can try it on a client.

It seems more likely that the client is broken than the
server (especially since UFS and ZFS both exhibit the
problem). All that a client should see when the server
is under heavy load is slow response.
--> Maybe that causes problems when a directory block
    is read ahead?

-- 
You are receiving this mail because:
You are the assignee for the bug.