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Error: Dynamic MMap ran out of room in Debian 11

If you’ve encountered the error message «Dynamic MMap ran out of room» on your Debian 11 server, don’t panic. This error can be caused by various factors, but there are several steps you can take to resolve the issue.

Causes of the Error

• Insufficient memory
• Apache or PHP configuration issues
• Too many open files

How to Fix the Error

If you’re facing the «Dynamic MMap ran out of room» error in Debian 11, here are a few recommendations to resolve the problem:

1. Increase the available memory on the server to avoid mmap exhaustion.
2. Check the Apache and PHP configuration files for errors and optimize them if necessary.
3. Limit the number of simultaneously open files on the server to reduce the load on mmap.
4. Restart the server to apply the changes.

These steps will help you fix the «Dynamic MMap ran out of room» error and restore your server to a working state. Remember to regularly monitor the server’s health to avoid similar issues in the future.

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