栗悟饭のspace

Solution to cuda driver failure after kernel update

xxxx — Fri, 01 Nov 2024 00:40:03 +0800

after a recent kernel update (presumably automatic via unattended-upgrades), cuda functionality on my server ceased functioning. the primary symptom was the following error when running nvidia-smi:

        
NVIDIA-SMI has failed because it couldn‘t communicate with the NVIDIA driver ...

this indicates a mismatch between the installed nvidia driver and the current kernel version. the solution involves using dkms (Dynamic Kernel Module Support) to rebuild the nvidia driver against the new kernel.

managing frp with systemd: a best-practice approach

xxxx — Thu, 31 Oct 2024 22:15:39 +0800

frp is a fantastic tool for intranet penetration, but managing it effectively can be a challenge. systemd provides a robust and elegant solution for automating frp’s startup and ensuring its resilience. this post will guide you through creating a best-practice systemd unit file for frp, focusing on clarity, efficiency, and robustness.

here’s the optimized unit file:

        
        
        
    
[Unit]
Description=frp server
Requires=network-online.target
After=network-online.target

[Service]
ExecStart=/usr/bin/frpc -c /path/to/your/frpc.ini
Restart=on-failure

[Install]
WantedBy=multi-user.target

let’s break down the key components:

A Record for Customizing Firefox Browser

xxxx — Thu, 01 Feb 2024 23:20:44 +0800

Today I customized my Firefox browser, and I want to record the process here. the result is quite satisfying.

How to Make Firefox Tab Auto Show Close Button

xxxx — Thu, 28 Dec 2023 12:52:12 +0000

In Firefox, the close button of a tab is hidden by default. You have to click the tab to show the close button. This is not convenient for me. I want the close button to be visible when i hover on it. Here is how to do it.

Solution to Fatal: Refusing to Merge Unrelated Histories

xxxx — Sat, 01 Apr 2023 17:29:46 +0800

solution to a common problem about git

Decoupled Knowledge Distillation Explained

xxxx — Fri, 10 Feb 2023 19:05:47 +0800

This artical introduces this paper and try to explain it.

Focal Loss explained for Object Detection

xxxx — Fri, 20 Jan 2023 21:54:05 +0800

This article explained Focal Loss in a simple way to understand how it can work. The paper is here.

Solution to Invalid Public Key for CUDA Apt Repository

栗悟饭とカメハメ波 — Wed, 18 Jan 2023 22:00:08 +0800

Problem

Got this error when I build DockerFile

        
...
W: GPG error: https://developer.download.nvidia.cn/compute/cuda/repos/ubuntu1804/x86_64  InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A4B469963BF863CC
E: The repository 'https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64  InRelease' is not signed.

Reason

Due to a key update in the CUDA Linux GPG repository: Nvidia has updated the gpg key, you should update gpg key to handle this!