Bug 453882

Summary:	Dolphin does not remove temporary files in /tmp when thumbnailing image files from "smb:"
Product:	[Applications] dolphin	Reporter:	temp
Component:	view-engine: general	Assignee:	Dolphin Bug Assignee <dolphin-bugs-null>
Status:	CONFIRMED ---
Severity:	normal	CC:	gudvinr+kde, kfm-devel, p.r.worrall, sprax2013
Priority:	NOR
Version:	22.04.0
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description temp 2022-05-16 10:52:06 UTC

SUMMARY
***
Dolphin creates temporary files in /tmp when thumbnailing image files from "smb:" mounts (r/w or r/o).
Over time, these files fill /tmp
eg:
-rw------- 1 ubuntu ubuntu        0 May 16 11:38 dolphin.ExHKzo
-rw-rw-r-- 1 ubuntu ubuntu  8577350 May 16 11:38 dolphin.ExHKzo.part
-rw------- 1 ubuntu ubuntu        0 May 16 11:38 dolphin.IeQYAj
-rw-rw-r-- 1 ubuntu ubuntu 14409948 May 16 11:38 dolphin.IeQYAj.part

***


STEPS TO REPRODUCE
1. Ensure 'preview' is set to enabled for remote files in dolphin
2. Open smb mount - eg smb://192.168.1.11/photos2022_RW/3_Mar/
3. Observe as thumbnails are generated increasing number of files in /tmp/ - these are never removed

OBSERVED RESULT
-rw------- 1 ubuntu ubuntu        0 May 16 11:38 dolphin.ExHKzo
-rw-rw-r-- 1 ubuntu ubuntu  8577350 May 16 11:38 dolphin.ExHKzo.part
-rw------- 1 ubuntu ubuntu        0 May 16 11:38 dolphin.IeQYAj
-rw-rw-r-- 1 ubuntu ubuntu 14409948 May 16 11:38 dolphin.IeQYAj.part

EXPECTED RESULT
No objection to files being created in order to thumb - but should be removed post thumbnail

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
KDE Plasma Version: 5.24.4
KDE Frameworks Version: 5.92.0
Qt Version: 5.15.3

ADDITIONAL INFORMATION
Dolphin version 4:21.12.3-0ubuntu1
Note: Does not appear to happen when mounting the same location via sshfs - only via smb
Note2: Does appear some of the files are created and subsequently removed - but not all

Comment 1 Paul Worrall 2024-09-02 18:42:20 UTC

I'm seeing this too.  
It's not difficult to fill up /tmp by browsing a photo collection via the smb kioslave. 
Should this bug be reassigned to the kioslave?

Operating System: Arch Linux 
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Graphics Platform: Wayland
Memory: 7.7 GiB of RAM