It is possible to corrupt the file system from user space as a normal user with Btrfs. The PostgreSQL devs found that when working on async IO. And as fer as I

It is possible to corrupt the file system from user space as a normal user with Btrfs. The PostgreSQL devs found that when working on async IO. And as fer as I know that issue has not been fixed. https://www.postgresql.org/message-id/CA%2BhUKGL-sZrfwcdme8jERPbn%2BsGbY13sRCvq8b9Hp%3DhaWpC6fw%40mail.gmail.com https://www.postgresql.org/message-id/CA%2BhUKGL-sZrfwcdme8j...