sy-records
commented
3 years ago Can you provide scripts for reproducible issues?
Open anibalsanchez opened 3 years ago
sy-records
commented
3 years ago Can you provide scripts for reproducible issues?
anibalsanchez
commented
3 years ago The issue is found on a system that can't be easily taken apart. I don't have a simple reproducible script.
Now, it is running on Swoole v4.4.25, but something is going on in the next versions.
It looks like after Swoole executes something is locked on proc_open and it waits forever. Let me know if there is a way to diagnose the issue.
twose
commented
3 years ago If you are using Linux, you can try to install strace and run your application by strace -f -o /tmp/strace.log xxx.php, when you reproduce the problem, you can cancel it and show the content of /tmp/strace.log here.
bmlkc
commented
3 years ago The issue might be this:
namespace Telesero\Telephony\Lib\Tests\Reproduce;
use PHPUnit\Framework\TestCase;
use Swoole\Coroutine;
use Swoole\Runtime;
class ProcHangTest extends TestCase
{
public function testProcOpen()
{
Runtime::setHookFlags(SWOOLE_HOOK_ALL);
Coroutine\run(
function () {
go(
function () {
$pipes = [];
$h = proc_open('sleep 10000', [], $pipes);
throw new \RuntimeException();
}
);
}
);
}
}if your application throws an exception and if you started something that runs indefinitely with proc, your app never quits.
php 7.4.16 + swoole 4.6.6
bmlkc
commented
3 years ago Another symfony issue I figured is booting kernel in a coro:
<?php
namespace Telesero\Telephony\Lib\Tests\Reproduce;
use Swoole\Coroutine;
use Swoole\Runtime;
class InsideCoroKernelBootTest extends \Symfony\Bundle\FrameworkBundle\Test\KernelTestCase
{
public function testBoot()
{
Runtime::setHookFlags(SWOOLE_HOOK_ALL);
Coroutine\run(
function () {
go(
function () {
$kernel = static::bootKernel();
}
);
}
);
}
}Results with:
===================================================================
[FATAL ERROR]: all coroutines (count: 1) are asleep - deadlock!
===================================================================
[Coroutine-2]
--------------------------------------------------------------------
#0 flock() called at [/home/project/Projects/V2/telephony-libs/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php:466]
#1 Symfony\Component\HttpKernel\Kernel->initializeContainer() called at [/home/project/Projects/V2/telephony-libs/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php:780]
#2 Symfony\Component\HttpKernel\Kernel->preBoot() called at [/home/project/Projects/V2/telephony-libs/vendor/symfony/symfony/src/Symfony/Component/HttpKernel/Kernel.php:121]
#3 Symfony\Component\HttpKernel\Kernel->boot() called at [/home/project/Projects/V2/telephony-libs/vendor/symfony/symfony/src/Symfony/Bundle/FrameworkBundle/Test/KernelTestCase.php:80]
#4 Symfony\Bundle\FrameworkBundle\Test\KernelTestCase::bootKernel() called at [/home/project/Projects/V2/telephony-libs/tests/Reproduce/InsideCoroKernelBootTest.php:18]php 7.4.16 + swoole 4.6.6 + symfony http-kernel v5.2.9
Please answer these questions before submitting your issue. Thanks!
I have a PHP CLI that executes these classes in this order:
On Swoole v4.4.25, it works OK.
On Swoole Swoole v4.6.5 (and v4.5.11), the second time that the CLI calls the Symfony\Component\Process\Process the execution timeouts without executing.
The same execution results on v4.6.5 (or v4.5.11).
The Process halts with a timeout.
Specifically, in the second time that the CLI calls the Symfony\Component\Process\Process, it is executed in a loop and at some point of the iteration the call to
@proc_openhangs.php --ri swoole)?uname -a&php -v&gcc -v) ?