LFDM.NET – This and that

FATAL: modpost: GPL-incompatible module *.ko uses GPL-only symbol ‘mutex_destroy’

by damien
2023-03-312023-03-31

Problem of day: trying to debug a linux kernel lock. I rebuilt the Linux kernel with debugging enabled: The device I’m developing for has an… Read More »FATAL: modpost: GPL-incompatible module *.ko uses GPL-only symbol ‘mutex_destroy’

LinuxMint 19.3 – Dell Precision 7560

by damien
2022-04-192022-04-19

Challenge of the day: install LinuxMint 19.3 on a Dell Precision 7560. Why LinuxMint 19.3? Because NVidia will most likely never release JetPack packages for… Read More »LinuxMint 19.3 – Dell Precision 7560

Install Python 3.8 on LinuxMint 18

by damien
2021-06-182021-06-18

Recently some utilities stopped working on LinuxMint 18 since the default python interpreter for LinuxMint is 3.5, cannot be changed, and support for Python 3.5 was dropped in the utilities.

Thanks deadsnakes team, you saved me some compilation time =)

sudo add-apt-repository ppa:deadsnakes/ppa
sudo apt-get update
sudo apt-get install python3.8 python3.8-distutils python3.8-venvCode language: Bash (bash)

The new interpreter can be found in /usr/bin/python3.8 and all I had to do was change the shebang from #!/usr/bin/python3 to #!/usr/bin/python3.8 in the utilities.

by damien
2021-06-142021-06-18

With older version of NVidia’s SDK manager you could fool it by making the OS look like Ubuntu by modifying the /etc/lsb-release file. See Flash… Read More »NVidia SDK manager on LinuxMint

Using libasan with CUDA

by damien
2021-02-042021-02-04

Consider the following simple program If you only link libasan and set the compiler flags, cudaGetDeviceCount will fail with error cudaErrorMemoryAllocation(2) and the CUDA runtime… Read More »Using libasan with CUDA

Linux command for finding PID assigned to a CPU

by damien
2020-11-022020-11-20

If core number is 7

ps -e -o pid,nice,class,rtprio,psr,pcpu,comm --sort psr | awk '$5 == "7" {print; }'Code language: Bash (bash)

by damien
2020-08-102020-08-10

Here is a script to sync a forked (not mirrored) git repository. In my case I have new private branches I cannot push upstream, but… Read More »Sync forked git repository

D-Bus Python service example

by damien
2020-06-042020-06-04

I found it quite frustrating to get started with D-Bus and the lack of working examples. I found this bit of example somewhere, can’t remember… Read More »D-Bus Python service example

Adding gpg keys to a yocto image

by damien
2020-05-222020-05-22

Let say I have a secret and a public key I want deploy in /home/root, respectively: secret.gpg public.pub It is not enough to just copy… Read More »Adding gpg keys to a yocto image

RDP on Linux

by damien
2020-05-142020-05-14

Remmina is a good RDP client for Linux If you get this error when trying to connect add a profile for the new connection, by… Read More »RDP on Linux