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Add mmap explanation

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This commit is contained in:
Daniil Gentili 2023-01-22 11:22:34 +01:00
parent 8e27815b9e
commit a7c5be1a1a
1 changed files with 18 additions and 5 deletions
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23
src/danog/MadelineProto/Exception.php
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@ -74,10 +74,9 @@ final class Exception extends \Exception
return new self($message, 0, null, $file, $line);
}
/**
* ExceptionErrorHandler.
*
* @internal
*
* Error handler
*
*/
public static function exceptionErrorHandler($errno = 0, $errstr = null, $errfile = null, $errline = null): bool
{
@ -98,12 +97,26 @@ final class Exception extends \Exception
throw new self($errstr, $errno, null, $errfile, $errline);
}
/**
* @internal
*
* ExceptionErrorHandler.
*
* Error handler
*/
public static function exceptionHandler(\Throwable $exception): void
{
if (str_contains($exception->getMessage(), 'Fiber stack protect failed')
|| str_contains($exception->getMessage(), 'Fiber stack allocate failed')
) {
$maps = "?";
try {
$maps = '~'.\substr_count(\file_get_contents('/proc/self/maps'), "\n");
} catch (\Throwable) {}
Logger::log("========= MANUAL SYSTEM ADMIN ACTION REQUIRED =========", Logger::FATAL_ERROR);
Logger::log("The maximum number of mmap'ed regions was reached ($maps): please increase the vm.max_map_count kernel config to 262144 to fix.");
Logger::log("To fix, run the following command as root: echo 262144 | sudo tee /proc/sys/vm/max_map_count");
Logger::log("To persist the change across reboots: echo vm.max_map_count=262144 | sudo tee /etc/sysctl.d/40-madelineproto.conf");
Logger::log("On Windows and WSL, increasing the size of the pagefile might help; please switch to native Linux if the issue persists.");
Logger::log("========= MANUAL SYSTEM ADMIN ACTION REQUIRED =========", Logger::FATAL_ERROR);
}
Logger::log($exception, Logger::FATAL_ERROR);
die(1);
}