Couldn't create the ssl-cache mutex

[acoalex]

ISSUE TYPE

• Bug Report

Checklist

• .env file is attached
• ./check-config.sh output is added below
• docker-compose logs output is added below
• docker-compose.override.yml is attached (if exists)
• Custom configs from cfg/ dir are attached (if exist)
• I've looked through the docs: https://devilbox.readthedocs.io/en/latest/
• I've looked through existing issues: https://github.com/cytopia/devilbox/issues
• I've read troubleshooting: https://devilbox.readthedocs.io/en/latest/support/troubleshooting.html

OS / ENVIRONMENT

1. Host operating system and version: Macos 12.2
2. (Macos 12.2 only) Docker Desktop for M1:
3. Docker version: 4.4.2
4. Docker Compose version: 2.2.3
5. (Linux) Is SELinux enabled?:
6. What git commit hash are you on?: 9272bfe

SUMMARY

After pulling last changes from repository httpd service doesnt start and display this error message:
devilbox-httpd-1 | [Mon Jan 31 15:43:10.749810 2022] [core:emerg] [pid 2222:tid 274907404160] (95)Operation not supported: AH00023: Couldn't create the ssl-cache mutex
devilbox-httpd-1 | AH00016: Configuration Failed

Minutes before i was developing normally but after upgrading devilbox repository that error appears

STEPS TO REPRODUCE

1- Pull last repository commits
2- docker-compose up httpd mysql php

EXPECTED BEHAVIOUR

Can access to web site

ACTUAL BEHAVIOUR

httpd service is down

[acoalex]

Switching to v1.9.2 tag works perfectly.
Thanks

[cytopia]

• .env file is attached
• ./check-config.sh output is added below
• docker-compose logs output is added below

These checkboxes should actually only be ticked, if their criteria is fulfilled. Let me know if this is unclear and how I can better formulate this to make it more clear.

When checking google for AH00023: Couldn't create the ssl-cache mutex it tells me that "semaphores are running short on count / space". Not sure If this is a host issue, or an issue on the Apache container:

• https://serverfault.com/questions/991946/no-space-left-on-device-ah00023-couldnt-create-the-mpm-accept-mutex-when-re
• https://webake.ro/2018/04/26/fix-ssl-cache-mutex-issue-centos/

[acoalex]

Thanks @cytopia , sorry for that checks, my fault.
I think that should be a problem with apache container, on host i have enought space:

overlay 61255492 32678616 25435552 57% /
tmpfs 65536 0 65536 0% /dev
shm 65536 0 65536 0% /dev/shm
grpcfuse 971350180 179114772 792235408 19% /ca
/dev/vda1 61255492 32678616 25435552 57% /var/mail
tmpfs 4063132 0 4063132 0% /sys/firmware

Only switching to tag 1.9.2 all works perfect, i will try to checkout again to master and change httpd image to 0.36 to determine if that is the problem.
Thanks again for your effort

[cytopia]

Here is another one which might indicate an issue with M1: webdevops/Dockerfile#433

[acoalex]

Here is another one which might indicate an issue with M1: webdevops/Dockerfile#433

I try with a 2019 Macbook pro with intel processor and works correctly, so its clearly M1 processor fail.
Thanks

[cytopia]

@acoalex can you give the upcoming release a try. Had an explicit fix for the ssl-cache mutex on Apache for M1 CPU's: #865

[acoalex]

@cytopia Yes, give me a while and i will try again.
Thanks a lot.

[acoalex]

@cytopia Hi!! I have make a pull request to repository and launch again docker but the same errors appears:

devilbox-httpd-1 | [Tue Feb 15 12:48:20.479133 2022] [core:emerg] [pid 5685:tid 274907404160] (95)Operation not supported: AH00023: Couldn't create the ssl-cache mutex
devilbox-httpd-1 | AH00016: Configuration Failed

Thanks

[cytopia]

I have make a pull request to repository and launch again docker...

Not sure what this means. Did you checkout branch release/v1.10.4 ?

[acoalex]

@cytopia No, i pulled from master branch, i will try to checkout that release.
Thanks

[cytopia]

It is not merged yet, as the PR is still open. You need to try it by checking out the above specified branch

[acoalex]

@cytopia Its Works!!! Thanks a lot.

[cytopia]

Fixed here: https://github.com/cytopia/devilbox/releases/tag/v1.10.4

[henriquemattos]

@cytopia given your commit, it's not clear what you did to fix Mutex SSL. Is there a specific configuration/setting you modified either in a Dockerfile or [httpd|apache|*].conf that you could share?

I'm not using your software, but I'm having similar problem on M1 and setting Mutex posixsem stops the error from the log but I keep loosing requests - and given the frequency and timing, I believe it's related to SSL.

Thanks in advance,
Henrique