[dolphin] [Bug 485736] New: Dolphin crashes trying to load previews of large text files

[Rune]

https://bugs.kde.org/show_bug.cgi?id=485736

            Bug ID: 485736
           Summary: Dolphin crashes trying to load previews of large text
                    files
    Classification: Applications
           Product: dolphin
           Version: 24.02.2
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: general
          Assignee: dolphin-bugs-null at kde.org
          Reporter: rune.fritzsche at web.de
                CC: kfm-devel at kde.org
  Target Milestone: ---

SUMMARY


STEPS TO REPRODUCE
1. Open a directory containing large text files or its parent directory in
dolphin

OBSERVED RESULT
In the parent directory, the directory containing the text files does not show
any preview icons. Memory usage skyrockets and when RAM+Swap is full, dolphin
crashes after the system hangs for a few seconds.
In my case, the text files (4) are around 600-700MB each and my 32GB of RAM (64
with ZRAM) are full within a few seconds.


EXPECTED RESULT
Icons indicating text files should be shown on the directory containing them.
Memory usage should remain normal.

SOFTWARE/OS VERSIONS
Linux: 6.8.7
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0

ADDITIONAL INFORMATION
Tested with 4 >600mb .par files

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