libc++abi.dylib: terminating with uncaught exception of type std::__1::system_error: thread constructor failed: Resource temporarily unavailable Abort trap: 6

[Player626]

Please answer these questions before submitting your issue. Thanks!

1. What did you do? If possible, provide a simple script for reproducing the error.

<?php

\Swoole\Coroutine::create(function (){
    while (true) {
        \Swoole\Coroutine::create(function (){
           $client = new \Swoole\Coroutine\Http\Client('baidu.com',443,true);
           $client->get('/');
           var_dump($client->getStatusCode());
        });
    }
});

2. What did you expect to see?

3. What did you see instead?

libc++abi.dylib: terminating with uncaught exception of type std::__1::system_error: thread constructor failed: Resource temporarily unavailable Abort trap: 6

4. What version of Swoole are you using (show your php --ri swoole)?

swoole

Swoole => enabled
Author => Swoole Team <team@swoole.com>
Version => 4.6.6
Built => May  1 2021 14:02:28
coroutine => enabled with thread context
kqueue => enabled
rwlock => enabled
openssl => OpenSSL 1.1.1i  8 Dec 2020
dtls => enabled
http2 => enabled
pcre => enabled
zlib => 1.2.11
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 => 262144 => 262144

5. What is your machine environment used (show your uname -a & php -v & gcc -v) ?

PHP 7.4.13 (cli) (built: Dec 23 2020 16:02:05) ( NTS )
Copyright (c) The PHP Group
Zend Engine v3.4.0, Copyright (c) Zend Technologies
    with Zend OPcache v7.4.13, Copyright (c), by Zend Technologies

Configured with: --prefix=/Library/Developer/CommandLineTools/usr --with-gxx-include-dir=/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/4.2.1
Apple clang version 12.0.5 (clang-1205.0.22.9)
Target: arm64-apple-darwin20.3.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin

Darwin shidizai-Mac-mini.local 20.3.0 Darwin Kernel Version 20.3.0: Thu Jan 21 00:06:51 PST 2021; root:xnu-7195.81.3~1/RELEASE_ARM64_T8101 arm64

[matyhtf]

Enable-thread-context is used, but the OS cannot create a new thread, so the creation of the coroutine fails.

[matyhtf]

Under the Linux platform, you can set /proc/sys/kernel/threads-max to adjust the maximum number of threads

[Player626]

thank you