Public bug reported:
When using dolphin to browse "/tmp" directory in which there is at least
one image, dolphin keeps generating a great number of images and use a
rapidly increasing amount of memory. If not closing dolphin within one
minute, the machine would shortly run out of memory.
The reason, I guess, is that dolphin generates a thumbnail cache in the
"/tmp" directory when browsing any images in any directory. It's ok when
browsing a normal directory, but when it comes to the "/tmp" directory
itself, problem occurs. Assume that there is a image "/tmp/1.png",
browsing "/tmp" makes dolphin to generate thumbnail for the "/tmp/1.png"
as "/tmp/dolphin-abcd.png", and the generated thumbnail are regarded as
a new image, so dolphin generates thumbnail for the "/tmp/dolphin-
abcd.png" as "/tmp/dolphin-efgh.png", and so on continously... The
number of the generated thumbnail files and the amount of memory usage
will increase exponentially.
Note that I don't have this problem in kubuntu 22.04, in which "/tmp" is
just a normal directory in the hard disk, but in kubuntu 24.10, "/tmp"
becomes a tmpfs.
ProblemType: Bug
DistroRelease: Ubuntu 24.10
Package: dolphin 4:24.08.1-0ubuntu1.1
ProcVersionSignature: Ubuntu 6.11.0-9.9-generic 6.11.0
Uname: Linux 6.11.0-9-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.30.0-0ubuntu4
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: KDE
Date: Mon Nov 11 16:53:10 2024
InstallationDate: Installed on 2022-04-29 (927 days ago)
InstallationMedia: Kubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64
(20220419)
SourcePackage: dolphin
UpgradeStatus: Upgraded to oracular on 2024-10-31 (11 days ago)
** Affects: dolphin (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug oracular wayland-session
** Attachment added: "the "dolphin-*.png" files' number and content ans total
size"
https://bugs.launchpad.net/bugs/2087829/+attachment/5836353/+files/image_2024-11-11_17-23-27.png
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https://bugs.launchpad.net/bugs/2087829
Title:
thumbnails are recursively generated in /tmp, causing out of memory
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