[Bug]: Clipboard crash Termux X11

[IntinteDAO]

Problem description

I noticed that if you press CTRL + C quickly, the Termux X11 shuts down.
Despite the debugging enabled, the log is short, but I hope this will help solve the problem

--------- beginning of crash
10-25 22:01:21.448 5396 5396 F libc : Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x7fd22f1b50 in tid 5396 (com.termux.x11), pid 5396 (com.termux.x11)

Didn't find anything interesting in logcat

What steps will reproduce the bug?

CTRL + C many times quickly

What is the expected behavior?

No response

[twaik]

Please, post full log.

[IntinteDAO]

I think it's a full log now
https://p.vinci-concessions.com/?6990eb72a4fa4f5d#71maJYAtG85J7BxF9FF194qGYoN6toJhDKRFb88tqxGD

[twaik]

Unfortunately, I can not reproduce it on my devices.

[twaik]

Is it still reproducible?

[IntinteDAO]

@twaik

1. Clipboard sharing must be enabled. (I checked it)

2. By simply pressing ctrl + c, I was not able to invoke it, but just a small amount of text from the terminal invoked it. Maybe it's some kind of race condition that waits to receive data from the previous “clipboard”, and gets the next one, doesn't get the clipboard end mark, and a crash occurs. I don't know how the clipboard works, this is a hypothesis

3. Ugly log
   https://paste.encrypt.co.il/?716afe82624393de#AtAuem1zznuftyuAw96s1YuKUPLyYJEd7yKkQVKgtKZW

4. It looks like you can cause a Crash loop in Termux X11 with this option, which will prevent Termux X11 from running, since (so I suspect) after the Android clipboard loads, it crashes.

[twaik]

Unfortunately I still can not reproduce it. Can you please post termux-info output?
And btw how did you get log without normal line breaks?

[twaik]

Should be fixed in latest version. Can you please recheck it?

[IntinteDAO]

@twaik

Not fixed. Maybe it can be related somehow with keyboard?
About line breaks - I just copy a log from Termux (also there is a little bug with terminal emulator I think) to nano

https://tube.midov.pl/w/9WjrNjY9GTfavZoRjQivBR
Sorry for useless talking XD

Termux Variables:
TERMUX_API_VERSION=0.50.1
TERMUX_APK_RELEASE=F_DROID
TERMUX_APP_PACKAGE_MANAGER=apt
TERMUX_APP_PID=7862
TERMUX_IS_DEBUGGABLE_BUILD=0
TERMUX_MAIN_PACKAGE_FORMAT=debian
TERMUX_VERSION=0.118.0
TERMUX__USER_ID=0
Packages CPU architecture:
aarch64
Subscribed repositories:
# sources.list
deb https://packages-cf.termux.dev/apt/termux-main stable main
# root-repo (sources.list.d/root.list)
deb https://packages-cf.termux.dev/apt/termux-root root stable
# tur-repo (sources.list.d/tur.list)
deb https://tur.kcubeterm.com tur-packages tur tur-on-device tur-continuous tur-multilib
# x11-repo (sources.list.d/x11.list)
deb https://packages-cf.termux.dev/apt/termux-x11 x11 main
Updatable packages:
ffmpeg/stable 6.1.2-2 aarch64 [upgradable from: 6.1.2-1]
layer-shell-qt/x11 6.2.4 aarch64 [upgradable from: 6.2.3]
libjxl/stable 0.11.1 aarch64 [upgradable from: 0.11.0]
qt5-qtbase-gtk-platformtheme/x11 5.15.16 aarch64 [upgradable from: 5.15.14-2]
qt5-qtbase/x11 5.15.16 aarch64 [upgradable from: 5.15.14-2]
qt5-qtdeclarative/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtlocation/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtmultimedia/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtscript/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtsensors/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtserialport/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtsvg/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qttools/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtwebchannel/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtwebsockets/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtx11extras/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
qt5-qtxmlpatterns/x11 5.15.16 aarch64 [upgradable from: 5.15.14-1]
termux-tools version:
1.44.1
Android version:
14
Kernel build information:
Linux localhost 4.19.157-perf+ #1 SMP PREEMPT Mon Nov 18 21:23:53 UTC 2024 aarch64 Android
Device manufacturer:
motorola
Device model:
XT2125-4
LD Variables:
LD_LIBRARY_PATH=
LD_PRELOAD=/data/data/com.termux/files/usr/lib/libtermux-exec.so
Installed termux plugins:
com.termux.api versionCode:51
com.termux.x11 versionCode:15

[twaik]

Are you sure you installed the latest build? Because I pushed a commit a few seconds before I've sent the last message.

[IntinteDAO]

@twaik
Yep, Now I have:
a0543e1

And it still crashes. It's for sure clipboard sharing problem, because if I disabled it, everything works.

[twaik]

Did you obtain this log with TERMUX_X11_DEBUG=1?
And please, output log to file. Copy-pasted log is not full and has no newlines which makes it very hard to read.

[IntinteDAO]

@twaik

https://paste.momobako.com/?ef4ece8e1f21e7f4#Ea2Zk9JXBKZnv5jb8vsvJ8s5uhywwH6yXYdd5ZBKUuhD

It's directly saved to file, from x11 start to crash and running again

[twaik]

I wonder why it does not print full crashlog there.
I hardly believe I can debug your device this way.
Probably it would be better to talk in realtime in discord or matrix and connect your device to debugger.
If you are in you are welcome to our matrix or discord servers.