NoMachine server segault on libnxdimi.so (redux)

[justjoetech]

I’ve got a NoMachine server running on my desktop, but cannot get a client to connect to it. Trying to connect to a physical desktop.  I get a segmentation fault each time I try.  Here are my system details:

Server

OS: Debian 13.0 “Trixie” (Desktop PC)
DE: LXDE with X11
NoMachine: 9.1.24 (installed from .deb)

Client

OS: Debian 13.0 “Trixie” (Laptop)
DE: XFCE with X11
NoMachine: 9.1.24 (installed from .deb)

I’ve also tried connecting from my Android phone (NoMachine 9.0.186), with the same result. I just get “Error is 104: Connection reset by peer.” accompanied by a segfault on the server.

Looking at /var/log/kern.log, I’m seeing (for example):

2025-09-01T12:07:21.444437-04:00 quiz kernel: nxnode.bin[268654]: segfault at 1792e ip 00007f9fe242f111 sp 00007f9fcfffe4f0 error 4 in libnxdimi.so[7f9fe2400000+8a000] likely on CPU 10 (core 10, socket 0)
2025-09-01T12:07:21.444451-04:00 quiz kernel: Code: 04 00 b8 ff ff ff ff e9 e7 fe ff ff 90 66 90 66 2e 0f 1f 84 00 00 00 00 00 41 57 41 56 41 55 49 89 fd 41 54 55 53 48 83 ec 18 <80> bf eb 55 01 00 01 0f 85 9a 01 00 00 8b 87 ec 8b 00 00 48 8b b7

I have tried uninstall/purge of the offending server and reinstalling (same result).

I also tried various settings without result:  – Disabling GPU acceleration – selecting video protocol (tried all three)

Any insights would be appreciated.

 

Peace,

Joe

[fra81]

Hi Joe,

we would need to see the backtrace from the core file. You can find all the instructions here: https://kb.nomachine.com/AR09L00810

Server side logs can also be useful: https://kb.nomachine.com/DT08U00298#1.1

You can send all of that to forum[at]nomachine[dot]com, by referencing this topic.

[Author]

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