132 lines
3.9 KiB
Markdown
132 lines
3.9 KiB
Markdown
# OOMAnalyser
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[](https://builds.sr.ht/~carstengrohmann/OOMAnalyser?)
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## Introduction
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OOMAnalyser is a small project to transform the OOM message of a Linux kernel into a more user-friendly format.
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OOMAnalyser consists of a web page into whose input field the OOM message is copied. JavaScript code extracts the data
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from it and displays the details. All processing takes place in the browser. No data is transferred to external servers.
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This makes it possible to use a locally stored copy of the website for analysis.
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This project is written in [Python](https://www.python.org) and uses [Transcrypt](https://www.transcrypt.org/) to
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translate Python code into JavaScript.
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The current online version is available at [https://www.carstengrohmann.de/oom/](https://www.carstengrohmann.de/oom/) .
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## Installation
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Installing OOMAnalyser is quite easy since OOMAnalyser consists only of two files, a
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HTML file and a JavaScript file. Both can be stored locally to use OOMAnalyser
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without an Internet connection.
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### Installation steps
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1. Open https://www.carstengrohmann.de/oom/ in a browser
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2. Browse down to the paragraph "Local Installation" at the end of the document
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3. Download the HTML file and the JavaScript file to the main directory
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4. Open the file `OOMAnalyser.html` in your favourite browser
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## Building OOMAnalyser
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### Requirements
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* [Python](http://www.python.org) 3.7
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* [Transcrypt](https://www.transcrypt.org/) 3.7
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* [Rollup](https://rollupjs.org/)
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### Prepare the build environment
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* Clone the repository:
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```
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# git clone https://git.sr.ht/~carstengrohmann/OOMAnalyser
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```
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* Setup the Python virtual environment:
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```
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# virtualenv env
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# . env/bin/activate
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# env/bin/pip install -Ur requirements.txt
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or
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# make venv
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```
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### Build OOMAnalyser
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```
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# . env/bin/activate
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# transcrypt --build --map --nomin -e 6 OOMAnalyser.py
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# rollup --config rollup.config.js
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or
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# make build
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```
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### Usage
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* Change into the source directory and start your own small web server.
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* Start Python built-in web server:
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```
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# python3 -m http.server 8080 --bind 127.0.0.1
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or
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# make websrv
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```
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* Open the URL http://localhost:8080/OOMAnalyser.html in your favorite browser.
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## Resources
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* [Transcrypt](https://www.transcrypt.org/)
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* [Linux man pages online](https://man7.org/)
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* [Decoding the Linux kernel's page allocation failure messages](https://utcc.utoronto.ca/~cks/space/blog/linux/DecodingPageAllocFailures)
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* [Linux Kernel OOM Log Analysis](http://elearningmedium.com/linux-kernel-oom-log-analysis/)
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## Known Bugs/Issues
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Check the project [issue tracker](https://todo.sr.ht/~carstengrohmann/OOMAnalyser)
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for current open bugs. New bugs can be reported there also.
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## License
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This project is licensed under the MIT license.
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```
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Copyright (c) 2017-2022 Carsten Grohmann, mail <add at here> carstengrohmann.de
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do
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so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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```
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Enjoy!
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Carsten Grohmann |