The exit status of 9 and signal 9 in Squid usually indicates that the proxy server was terminated due to a segmentation fault. This is usually caused by a bug or a misconfiguration in Squid, or by a problem with one of the libraries that Squid uses.
Here’s how you can try to find out why Squid terminated with signal 9:
- Check the Squid log files: The first place to look is the Squid log files, which can be found in the
/var/log/squiddirectory on most systems. Look for any error messages or warnings that might give you a clue as to what went wrong. - Check the core dump file: If Squid terminated with a segmentation fault, a core dump file might have been generated. This file can contain valuable information that can help you diagnose the problem. To check if a core dump file was generated, run the following command:
ls -l /var/log/core*
If a core dump file was generated, you can analyze it using a debugger, such as
gdb, to get a stack trace and see what caused the segmentation fault. - Upgrade Squid to a newer version: If the problem persists, you can try upgrading to a newer version of Squid, as newer versions often contain bug fixes and performance improvements.
- Get help from the Squid community: If you’re unable to find a solution on your own, you can get help from the Squid community by posting a question on a forum or mailing list. The Squid community is a friendly and helpful group of people who are often able to provide advice and support.
In conclusion, finding the root cause of Squid termination with signal 9 can be a complex task, but by checking the logs, core dump files, and seeking help from the community, you can hopefully get to the bottom of the problem and find a solution.