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Re: [Samba] Locking issue with Lightroom and Photoshop

On Mon, Dec 17, 2018 at 11:02:41AM -0600, Mike Pastore via samba wrote:
I have an issue at a weird confluence of macOS Mojave's "nsmb" client,
Adobe Lightroom and Photoshop, and Samba 4.7.6-Ubuntu. Since I don't have
much control over Apple or Adobe software, I'm hoping there's some smb.conf
magic (or other sage advice) that might help me out of this jam. For
reference, Samba is configured for SMB2-only access (i.e. durable file
handles), with min/max client version set to SMB2_10; and the nsmb client
is configured with signing_required=no and protocol_vers_map=2.

In brief, the user starts in Lightroom, selects an image from the catalog,
and fires the "Edit in Photoshop" action. Lightroom takes out a DENY_NONE,
RDONLY lock (viewable via smbstatus -L) on the file and opens it in

hm, I guess the "RDONLY" string appears in the "R/W" column? That's just the open access mode, not related to locking.

Photoshop. Subsequently, when the user tries to save the file in-place in
Photoshop, she gets the following error message: *Could not save "foo.tif"
because write access was not granted.* To be clear, this is not a
permissions issue; when the user opens the file in a different way—e.g.
through Finder or Photoshop—she can edit and save it in-place just fine.

have you checked network traces and a level 10 debug log to see where it goes off?


Ralph Boehme, Samba Team                https://samba.org/
Samba Developer, SerNet GmbH   https://sernet.de/en/samba/
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