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Date:      Sat, 24 Oct 2020 21:29:49 +0000
From:      bugzilla-noreply@freebsd.org
To:        bugs@FreeBSD.org
Subject:   [Bug 249871] NFSv4 faulty directory listings under heavy load
Message-ID:  <bug-249871-227-B3Eh1jS96l@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-249871-227@https.bugs.freebsd.org/bugzilla/>
References:  <bug-249871-227@https.bugs.freebsd.org/bugzilla/>

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

--- Comment #16 from Jason W. Bacon <jwb@freebsd.org> ---
(In reply to Rick Macklem from comment #11)

I created an NFS share on a compute node using UFS and the problem *DOES* occur
there as well.

Running the "ls" test from any NFS client to that node gives something like the
following:

#!/bin/sh -e

cd AD-VCFs-whi/MAF-0.01-1000nt
while true; do
    ls | grep 'combined.*\.vcf\.xz' | wc -l
    sleep 2
done

   11031
   11031
   11030
   11031
   11031
   11031
   11031
   11031
   11029
   11031

Running the same test script on either the ZFS or NFS server gives consistently
correct results (11031 every time).

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