[Bug 2061026] [NEW] Copy file within cifs network share hangs with cp

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Hi everyone,

I experienced the following issues with my samba network setup after the
last major update a few days ago. I am using ubuntu 23.10 on my main
machine and a small thinclient. Both machines are up to date regarding
updates.

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I have mounted a samba share from a truenas scale instance:
//192.168.1.20/thiem /media/truenas/thiem cifs rw,_netdev,noserverino,vers=3.0,credentials=/home/ydmidy/.smbcredentials_truenas,nobrl,iocharset=utf8,gid=1000,uid=1000,file_mode=0777,dir_mode=0777 0 0

Before the latest update I was able to:
1. Copy files from my local machine to the remote samba share
2. Copy files from the samba share to my local machine
3. Copy files within the samba share

After the latest update #3 doesn't work anymore. #1 and #2 still do
work. A dummy file (same name) is being created after pasting a file
within the share and nautilus is stuck in that copy process. A "cp"
command in the terminal ist terminated with the error message "killed".

I am sure that this behaviour is happening after an update, because I
reproduced the situation on my thinclient. After the most recent updates
(I postponed them) "cp" doesn't work anymore on the samba share.

I found quiet the same bug report for debian, maybe that helps:
https://forums.debian.net/viewtopic.php?t=158075

Thanks for your support!

** Affects: cifs-utils (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: bot-comment
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Copy file within cifs network share hangs with cp
https://bugs.launchpad.net/bugs/2061026
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