Crash

[FayardProf]

Hi,

The Mathematica Jupyter kernel works fine, but generates the following crash. It is still quite difficult to understand when this crash is generated. I am using

• Ubuntu 20.04
• Mathematica 12.2.0
• JupyterHub

Here are the first lines of the crash file available at : /var/crash/_opt_mathematica_SystemFiles_Kernel_Binaries_Linux-x86-64_WolframKernel.1001.crash

<=====
ProblemType: Crash
Architecture: amd64
Date: Fri Apr 16 21:19:42 2021
DistroRelease: Ubuntu 20.04
ExecutablePath: /opt/mathematica/SystemFiles/Kernel/Binaries/Linux-x86-64/WolframKernel
ExecutableTimestamp: 1618575522
ProcCmdline: /opt/mathematica/SystemFiles/Kernel/Binaries/Linux-x86-64/WolframKernel -script /home/jupyter-ffayard/WolframLanguageForJupyter/WolframLanguageForJupyter/Resources/KernelForWolframLanguageForJupyter.wl /home/jupyter-ffayard/.local/share/jupyter/runtime/kernel-3b83a8e5-f01c-4544-9d2f-c6e1fa52a9f9.json ScriptInstall
ProcCwd: /home/jupyter-ffayard
ProcEnviron:
LC_TIME=fr_FR.UTF-8
LC_MONETARY=fr_FR.UTF-8
PATH=(custom, no user)
LC_ADDRESS=fr_FR.UTF-8
LANG=en_US.UTF-8
LC_TELEPHONE=fr_FR.UTF-8
SHELL=/bin/bash
LC_NAME=fr_FR.UTF-8
LC_MEASUREMENT=fr_FR.UTF-8
LC_IDENTIFICATION=fr_FR.UTF-8
LC_NUMERIC=fr_FR.UTF-8
LC_PAPER=fr_FR.UTF-8
...
=====>

I have tried to launch the command responsible for the crash from the shell, and I get the following output

<=====

/opt/mathematica/SystemFiles/Kernel/Binaries/Linux-x86-64/WolframKernel -script /home/jupyter-ffayard/WolframLanguageForJupyter/WolframLanguageForJupyter/Resources/KernelForWolframLanguageForJupyter.wl /home/jupyter-ffayard/.local/share/jupyter/runtime/kernel-7d40b63e-77e5-4afa-a73e-e8078b28d2b5.json ScriptInstall

SocketOpen::zmqexception:
A ZeroMQ exception was thrown - Address already in use (code 98)

SocketOpen::zmqexception:
A ZeroMQ exception was thrown - Address already in use (code 98)

SocketOpen::zmqexception:
A ZeroMQ exception was thrown - Address already in use (code 98)

General::stop: Further output of SocketOpen::zmqexception
will be suppressed during this calculation.
=====>

Is it a known problem ? Any workaround ?

Best regards and thanks for your help,
Francois