linux-nfs.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: "J. Bruce Fields" <bfields@fieldses.org>
To: Jason L Tibbitts III <tibbs@math.uh.edu>
Cc: linux-nfs@vger.kernel.org, km@cm4all.com, linux-kernel@vger.kernel.org
Subject: Re: Regression in 5.1.20: Reading long directory fails
Date: Wed, 28 Aug 2019 14:33:54 -0400	[thread overview]
Message-ID: <20190828183354.GD29148@fieldses.org> (raw)
In-Reply-To: <ufay2zduosz.fsf@epithumia.math.uh.edu>

On Wed, Aug 28, 2019 at 01:29:00PM -0500, Jason L Tibbitts III wrote:
> If I had any idea how to do that, I happily would.  I'm certainly
> willing to learn.  At least I can run strace to see where ls bombs:

Somewhat of a caveman, I might start at the code for getdents, sprinkle
printk's around until I get down to the relevant code in the NFS
layer....  There's probably a better way to do it with tracing.

> getdents64(5, 0x7fc13afaf040, 262144)   = -1 EIO (Input/output error)
> 
> bcodding on IRC mentioned that is a rather large count.  Does make me
> wonder if the server is weirding out and sending the client bogus data.
> Certainly a server reboot, or maybe even just unmounting and remounting
> the filesystem or copying the data to another filesystem would tell me
> that.  In any case, as soon as I am able to mess with that server, I'll
> know more.

Might also be worth capturing the network traffic and checking whether
wireshark thinks the server replies are valid xdr.

--b.

  reply	other threads:[~2019-08-28 18:33 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-13 15:08 Regression in 5.1.20: Reading long directory fails Jason L Tibbitts III
2019-08-13 17:00 ` Jason L Tibbitts III
2019-08-22 19:39 ` Jason L Tibbitts III
2019-08-28 17:46   ` J. Bruce Fields
2019-08-28 18:29     ` Jason L Tibbitts III
2019-08-28 18:33       ` J. Bruce Fields [this message]
2019-09-03 15:49       ` Jason L Tibbitts III
2019-09-03 18:02         ` Wolfgang Walter
2019-09-03 19:06           ` Jason L Tibbitts III
2019-09-03 19:08             ` Chuck Lever
2019-09-03 21:37             ` Wolfgang Walter
2019-09-04  1:50               ` Jason L Tibbitts III
2019-09-06 14:48                 ` J. Bruce Fields
2019-09-06 20:47                   ` Jason L Tibbitts III
2019-09-06 20:50                     ` Chuck Lever
2019-09-08 11:39                       ` Benjamin Coddington
2019-09-08 15:19                         ` Trond Myklebust
2019-09-08 15:48                           ` Chuck Lever
2019-09-08 16:47                             ` Trond Myklebust
2019-09-08 16:51                               ` Chuck Lever
2019-09-11 16:25                       ` Benjamin Coddington
2019-09-11 16:39                         ` Chuck Lever
2019-09-11 17:26                           ` Benjamin Coddington
2019-09-11 17:27                             ` Benjamin Coddington
2019-09-11 17:29                             ` Chuck Lever
2019-09-11 17:40                               ` Benjamin Coddington
2019-09-11 17:43                                 ` Chuck Lever
2019-09-11 17:59                                   ` Benjamin Coddington
2019-09-11 17:50                                 ` Benjamin Coddington
2019-09-11 17:54                                   ` Chuck Lever
2019-09-12 12:29                                     ` Benjamin Coddington
2019-09-12 12:53                                       ` Trond Myklebust
2019-09-12 13:08                                         ` Benjamin Coddington
2019-09-12 13:13                                           ` J. Bruce Fields
2019-09-12 13:25                                             ` Trond Myklebust
2019-09-12 13:35                                               ` Benjamin Coddington
2019-09-12 13:14                                           ` Trond Myklebust

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20190828183354.GD29148@fieldses.org \
    --to=bfields@fieldses.org \
    --cc=km@cm4all.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-nfs@vger.kernel.org \
    --cc=tibbs@math.uh.edu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).