php-fpm stuck request

[root-aza]

Environment: https://github.com/root-aza/caddy-crash

Nginx case:

make up-nginx

php app.php

Logs:

ok, fpm gave 200

Cady case:

make up-caddy

php app.php

Logs:

wtf!? Fpm response with code 200 not found and and the client timed out

And if we talk about our internal service that runs on caddy, then fpm crashes with error code 0.
Now we are trying to reproduce this case locally so that you can reproduce it later.

[WeidiDeng]

It's a known problem for 2.6.4. We're working on a fix.