WARNING Server::check_worker_exit_status(): worker(pid=690, id=14) abnormal exit, status=0, signal=9

[vasa2856]

Every download request(more than 20MB) gets below warning and doesn't return response.

1. Please provide your PHP and Swoole version. (php -v and php --ri swoole)

PHP version

PHP 8.0.18 (cli) (built: Apr 22 2022 22:53:40) ( NTS )
Copyright (c) The PHP Group
Zend Engine v4.0.18, Copyright (c) Zend Technologies
with Zend OPcache v8.0.18, Copyright (c), by Zend Technologies

swoole:

/var/www/portal $ php8 --ri swoole

swoole

Swoole => enabled
Author => Swoole Team team@swoole.com
Version => 4.8.0
Built => Jul 6 2022 16:17:48
coroutine => enabled with boost asm context
epoll => enabled
eventfd => enabled
signalfd => enabled
spinlock => enabled
rwlock => enabled
zlib => 1.2.12
brotli => E16777225/D16777225
mutex_timedlock => enabled
pthread_barrier => enabled
futex => enabled
async_redis => enabled

Directive => Local Value => Master Value
swoole.enable_coroutine => On => On
swoole.enable_library => On => On
swoole.enable_preemptive_scheduler => Off => Off
swoole.display_errors => On => On
swoole.use_shortname => On => On
swoole.unixsock_buffer_size => 8388608 => 8388608

2. Please provide your Laravel/Lumen version.

Laravel Version : 9.2

4. What did you do? If possible, provide a recipe for reproducing the error.

Every download request(more than 20MB) gets below warning and doesn't return response. Is it coz of any memory leak ?