What kind of Garbage Collection does Go use?

Go is a garbage collected language: http://golang.org/doc/go_faq.html#garbage_collection Here it says that it's a mark-and-sweep garbage collector, but it doesn't delve into details, and a replacement is in the works... yet, this paragraph seems not to have been updated much since Go was released. It's still mark-and-sweep? Is it conservative or precise? Is it generational?

[moccos_info]

"stop-the-world part limited by a 10ms deadline" まことか