linux-ext4 - [Bug 220594] Online defragmentation has broken in 6.16

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Message-ID: <bug-220594-13602-vAvN5puB8w@https.bugzilla.kernel.org/>
Date: Thu, 25 Sep 2025 14:24:31 +0000
From: bugzilla-daemon@...nel.org
To: linux-ext4@...r.kernel.org
Subject: [Bug 220594] Online defragmentation has broken in 6.16

https://bugzilla.kernel.org/show_bug.cgi?id=220594

Theodore Tso (tytso@....edu) changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |UNREPRODUCIBLE

--- Comment #3 from Theodore Tso (tytso@....edu) ---
I can't reproduce the bug, so it's not valid for me....

# uname -a
Linux kvm-xfstests 6.17.0-rc4-xfstests #245 SMP PREEMPT_DYNAMIC Thu Sep 25
10:02:23 EDT 2025 x86_64 GNU/Linux

root@...-xfstests:/vdc# seq 1 1024 | xargs -n 1 cp /etc/motd 
root@...-xfstests:/vdc# seq 1 2 1024 | xargs rm 
root@...-xfstests:/vdc# cp /bin/bash .
root@...-xfstests:/vdc# cp /bin/netstat .
root@...-xfstests:/vdc# cp /bin/uniq .
root@...-xfstests:/vdc# seq 2 2 1024 | xargs rm 
root@...-xfstests:/vdc# filefrag  *
bash: 317 extents found
lost+found: 1 extent found
netstat: 39 extents found
uniq: 1 extent found

root@...-xfstests:/vdc# e4defrag  *
e4defrag 1.47.2 (1-Jan-2025)
ext4 defragmentation for bash
[1/1]bash:      100%    [ OK ]
 Success:                       [1/1]
ext4 defragmentation for directory(lost+found)
Can not process "lost+found"
 "lost+found"
ext4 defragmentation for netstat
[1/1]netstat:   100%    [ OK ]
 Success:                       [1/1]
ext4 defragmentation for uniq
[1/1]uniq:      100%    [ OK ]
 Success:                       [1/1]
root@...-xfstests:/vdc#

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