https://bugs.kde.org/show_bug.cgi?id=482800
Bug ID: 482800
Summary: Kate freezes if an open file with Linux device
information has been modified externally
Classification: Applications
Product: kate
Version: 24.02.0
Platform: Other
OS: Linux
Status: REPORTED
Keywords: qt6, reproducible, usability
Severity: normal
Priority: NOR
Component: general
Assignee: kwrite-bugs-n...@kde.org
Reporter: xalt7x.serv...@gmail.com
Target Milestone: ---
SUMMARY
Application freezes if user has opened file from the /sys directory, and this
file was changed externally.
For example, user disables CPU core , changes I/O Disk scheduler or tweaks some
device parameter
Freezing also occurs if the file contents are overwritten with the same value.
STEPS TO REPRODUCE
1. Open /sys/devices/system/cpu/cpu1/online using KWrite or Kate
2. Open terminal (either Kate built-in or external application)
3. Execute the command below to overwrite the file value
echo 1 | sudo tee /sys/devices/system/cpu/cpu1/online
OBSERVED RESULT
KWrite/Kate window freezes
EXPECTED RESULT
KWrite/Kate window shouldn't freeze
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Fedora Kinoite 40
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
ADDITIONAL INFORMATION
If I modify file within Kate/KWrite, it can't be saved (even though I provide a
correct password for administrator authentication). The error says that "The
document could no be saved, as it was no possible to write to ...". That's
also the case with files inside /proc directory (e.g.
/proc/sys/vm/page-cluster), though Kate doesn't freeze if those files are
changed externally.
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