CIFS VFS: Close unmatched open

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hema.arun
Posts: 19
Joined: 2017/02/06 11:56:26

CIFS VFS: Close unmatched open

Post by hema.arun » 2019/07/11 08:10:10

The error below appear in logs from time to time and the file downloaded at this particular time from the webserver shows as corrupted. At the same time the file shares mounted on server becomes stale and inaccessible.

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Jul 10 15:31:14 hostname  kernel: CIFS VFS: Close unmatched open
Jul 10 15:33:53 hostname kernel: CIFS VFS: Close unmatched open
Jul 10 15:33:53 hostname kernel: CIFS VFS: Close unmatched open
This is a CentOS7.6 version server with apache running on it. Website is a normal php site where there is an option to download files for end user. These downloadable files are placed in CIFS shares (Windows file share - SMB 3.0) mounted on server. While downloading it and this error shows in logs, the file downloaded shows as corrupted. Rest of the time the file downloaded is fine.
At the same time the CIFS shares mounted becomes stale as well.

I saw this bug and I am facing same errors in logs and my issue is similar. But a kernel update was done to this particular version on June28th, however, the errors started in logs on June 24th. So, I am confused, is it really this bug or something else.
https://bugs.centos.org/view.php?id=16242

As far as I know no changes were made at server side or file share side and also similar SMB shares are mounted in few other CentOS servers with same version where we don't face any issues.
A reboot is only what it fixes the issue.

hema.arun
Posts: 19
Joined: 2017/02/06 11:56:26

Re: CIFS VFS: Close unmatched open

Post by hema.arun » 2019/07/15 12:40:02

Has some one faced this issue?

hema.arun
Posts: 19
Joined: 2017/02/06 11:56:26

Re: CIFS VFS: Close unmatched open

Post by hema.arun » 2020/07/28 04:35:18

Still I am facing this issue. Any help

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TrevorH
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Re: CIFS VFS: Close unmatched open

Post by TrevorH » 2020/07/28 10:10:20

If you're on 7.6 then you're 2 years out of date. 7.8 is current.

yum update
CentOS 6 will die in November 2020 - migrate sooner rather than later!
Info for USB installs on http://wiki.centos.org/HowTos/InstallFromUSBkey
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