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SubjectRe: 3.18.1: broken directory with one file too many
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On Thu, Dec 18, 2014 at 03:35:45PM +0000, Holger Hoffstätte wrote:
> On Thu, 18 Dec 2014 09:48:56 -0500, J. Bruce Fields wrote:
>
> > On a quick skim, the server's READDIR responses look correct. The entry
> > btrfs-20141216-fix-a-warning-of-qgroup-account-on-shared-extents.patch
> > is returned in frame 53 (with complete reassembled reply displayed by
> > wireshark in frame 63).
> >
> > You could double-check for me--just run "wireshark nfs-server.pcap",
> > look for packets labeled "Reply ... READDIR", and expand out the READDIR
> > op and directory listing. I don't see anything obviously wrong.
>
> That's what I can see in Wireshark as well (#53 as part of the "20
> reassembled segments"). As I said in my followup I don't think there is
> anything wrong with that particular file since removing others "fixed"
> the problem. That's why I suspected NIC/TCP buggery, and since my kernels
> usually have a bunch of patches (the ones in that repo) I wanted to try
> vanilla 3.18.0/1 as well as -3.14.27 first.
>
> >> Meanwhile I'll try older/plain (unpatched) kernels. So far reverting
> >> the client to vanilla 3.18.1 or 3.14.27 has not helped..
> >
> > I'm a little unclear: when you said "All this is on freshly baked
> > 3.18.1", are you describing the client, or the server, or both?
>
> That was on both. As I wrote in the followups I've now also tried to
> first downgrade the clients (didn't help) and then finally found that
> 3.14.27 (both with and without my patches) on the server repeatably
> works, regardless of client. Right now I have 3.18.1 as clients and
> 3.14.27 on the server, and that works fine.

The way that the server encodes readdir replies changed in 3.16, so I'd
guess 3.15 will also work for you and 3.16 won't.

--b.

(PS You or your mail client seem to be trimming my address from to: and
cc: lines, I'd rather you didn't.)


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