Troubleshooting 'Failed to Write Core Dump' When Updating to Minecraft Version 1.9


If you are using Minecraft version 1.9 and you experience "Failed to Write Core Dump" errors, then this guide will help you troubleshoot and identify the root cause of the issue. You’ll learn how to use Minecraft logs and core dumps to identify and correct the source of the issue so you can update your game successfully.

Problem Description

When you update your game to Minecraft 1.9, you may receive an error message stating “Failed to Write Core Dump.” This is usually caused by an issue with the game’s memory or compatibility with newer versions of the software.

Troubleshooting Steps

  1. Check the Memory Usage: Minecraft requires a certain amount of RAM for optimal performance. You can check your game’s memory usage by running the command top in the terminal.
  2. Determine the Root Cause: You can use the Minecraft logs and core dump files to identify the root cause of the problem. The log files will show any errors or issues in the game and the core dump file will tell you what type of error it is.
  3. Update the Game: If the root cause of the issue is a compatibility issue, then you’ll need to update your game to the latest version of Minecraft available.


Q: What is a core dump?
A: A core dump is a file generated by a computer application when it encounters an issue or fault. It contains a snapshot of the state of the application when the error occurred.

Q: How can I view my Minecraft logs and core dump files?
A: The Minecraft logs and core dump files are typically located in the .minecraft/logs directory of your computer.


Minecraft Forum Post: Failed to Write Core Dump

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