From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 8 Jan 2001 16:21:10 -0200 (BRDT) From: Rik van Riel Subject: Re: Subtle MM bug In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Linus Torvalds Cc: "David S. Miller" , Marcelo Tosatti , linux-mm@kvack.org List-ID: On Mon, 8 Jan 2001, Linus Torvalds wrote: > On Mon, 8 Jan 2001, Rik van Riel wrote: > > On Sun, 7 Jan 2001, Linus Torvalds wrote: > > > > > /* > > > * Too many active pages? That implies that we don't have enough > > > * of a working set for page_launder() to do a good job. Start by > > > * walking the VM space.. > > > */ > > > if ((nr_active_pages >> 1) > total_pages) > > > swap_out(); > That _is_ the problem the above will fix. Don't read > "page_launder()" there: it's more meant to be "this is the old > code that does page_launder() etc.." > > Trust me. Try my code. It will work. Except for the small detail that pages inside the processes are often not on the active list ;) But I agree with your idea that we really should make sure we have enough pages available to choose from when swapping stuff out. regards, Rik -- Virtual memory is like a game you can't win; However, without VM there's truly nothing to lose... http://www.surriel.com/ http://www.conectiva.com/ http://distro.conectiva.com.br/ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/