https://bugs.kde.org/show_bug.cgi?id=512167
Bug ID: 512167
Summary: Freeze and Cpu Hog when editing message in Chinese
under X11
Classification: Applications
Product: NeoChat
Version First git master
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: General
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Target Milestone: ---
Created attachment 186830
--> https://bugs.kde.org/attachment.cgi?id=186830&action=edit
Freeze
## Description
When Using `neochat` under X11, editing messages containing Chinese characters
(maybe also other languages) cause `neochat` freezing.
Detail is listed below.
## Steps to reproduce
1. Build app with `-DBUILD_TESTING=OFF` (Or just use distro's package in Arch
Linux)
2. Open app and logging to any account
3. Send a message in Chinese or just find a message already sent including
Chinese characters.
4. Try editing it. App will freeze.
## What is the current bug behavior?
When freezing, cpu hogs with about 100% occupation, which means single thread
is fully occupied. (Maybe an infinite loop?)
#### Some Notable facts:
1. `SIGINT` and `SIGTERM` cannot help to quit the app. Only `SIGKILL` can do.
2. This bug exist both in release version `25.08` and up-to-date git version.
3. `gdb` fails to get any log at such situation.
4. This bug depends on building parameters:
When built with `-DBUILD_TESTING=OFF`, this bug exists.
When build as default (without any parameters), this bug disappears.
When build without `-DBUILD_TESTING=OFF`, but with some other parameters, this
bug can also happens. I have not find out what parameters can cause the bug.
5. This bug will not happen when run under wayland.
6. Sorry for no logs. Screen-shots attached.
## System/Matrix Information
#### Detect this bug under several different System. Here is one of them.
- **Distribution / Platform:** Arch Linux
- **Qt Version:** 6.10.0
- **NeoChat version:** 25.08.1 (*ALSO* for git master!)
- **Quotient version:** 0.9.4
- **Matrix server:** mozilla.org and opensuse.org, ....
#### Note:
flathub version has same bug.
openSUSE Leap 16 seems to not have same bug.
This difference is mainly caused by building parameters.
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