From: "J. Bruce Fields" <bfields@fieldses.org>
To: Timo Rothenpieler <timo@rothenpieler.org>
Cc: Linux NFS Mailing List <linux-nfs@vger.kernel.org>
Subject: Re: NFSD Regression: client observing a file while other client writes to it leads to stale local cache
Date: Thu, 4 Mar 2021 09:42:28 -0500 [thread overview]
Message-ID: <20210304144228.GD17512@fieldses.org> (raw)
In-Reply-To: <2d4e7965-903f-2319-d2d2-65116f50400c@rothenpieler.org>
On Tue, Mar 02, 2021 at 02:23:05AM +0100, Timo Rothenpieler wrote:
> Server and reading client disagreeing about the files size and
> contents is 100% reproducible, even after the writing client has
> long and definitely closed the file.
OK, I reproduced this myself and watched the network traffic in
Wireshark.
The server is *not* giving out a read delegation to the writer (which is
what the commit you bisected to should have allowed). It *is* giving
out a delegation to the reader. Which is a truly awful bug.
Investigating....
--b.
next prev parent reply other threads:[~2021-03-04 14:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-28 22:27 NFSD Regression: client observing a file while other client writes to it leads to stale local cache Timo Rothenpieler
2021-03-01 18:46 ` J. Bruce Fields
2021-03-02 1:03 ` Timo Rothenpieler
2021-03-02 1:06 ` J. Bruce Fields
2021-03-02 1:23 ` Timo Rothenpieler
2021-03-04 14:42 ` J. Bruce Fields [this message]
2021-03-05 22:31 ` J. Bruce Fields
2021-03-06 0:01 ` Timo Rothenpieler
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