Re: unclosed CIFS file handles

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That bug is already in upstream and has been backported to rhel7.5.

On Tue, Sep 18, 2018 at 6:39 AM, Syam Gadde <syam.gadde@xxxxxxxx> wrote:
> Hi all,
>
> Apologies if this is the wrong list, or if this has already been reported/fixed.  I had trouble finding any related bug reports.
>
> I opened a bug at RedHat:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=1624029
>
> and the summary is that on our Linux machines (running Scientific Linux kernel versions 3.10.0-693.5.2.el7 and 3.10.0-514.21.1.el7) that connect to a CIFS file system residing on a Hitachi/BlueArc file server, the kernel  sometimes neglects to send a "close" request on open file handles if an application is interrupted (with Ctrl-C, and probably also with segfaults as we've seen this with non-interactive processes on our cluster).  The result is phantom files (and parent directories)  that can't be deleted/moved/renamed because the server thinks there is someone still keeping it open.
>
> More details are in the above bug report, including a packet dump and some dmesg output (with debugging output turned on as suggested on wiki.samba.org).  Note that the above bug report has been assigned to cifs-utils  but I don't think this is a user-space issue.  I would appreciate any suggestions on how to address this.
>
> Thank you for your help (or redirection)!
>
> -syam
>
>
>
>




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