From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail138.messagelabs.com (mail138.messagelabs.com [216.82.249.35]) by kanga.kvack.org (Postfix) with SMTP id 81E816B01EA for ; Thu, 14 May 2009 13:20:24 -0400 (EDT) Message-Id: <6.2.5.6.2.20090514131734.05890270@binnacle.cx> Date: Thu, 14 May 2009 13:20:09 -0400 From: starlight@binnacle.cx Subject: Re: [Bugme-new] [Bug 13302] New: "bad pmd" on fork() of process with hugepage shared memory segments attached In-Reply-To: <20090514105926.GB11770@csn.ul.ie> References: <20090513130846.d463cc1e.akpm@linux-foundation.org> <20090514105326.GA11770@csn.ul.ie> <20090514105926.GB11770@csn.ul.ie> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-linux-mm@kvack.org To: Mel Gorman , Andrew Morton Cc: linux-mm@kvack.org, bugzilla-daemon@bugzilla.kernel.org, bugme-daemon@bugzilla.kernel.org, Adam Litke , Eric B Munson List-ID: Definately no. The possibly unusual thing done is that a file is read into something like 30% of the segment, and the remaining pages are not touched. At 11:59 AM 5/14/2009 +0100, Mel Gorman wrote: >Another question on top of this. > >At any point, do you call madvise(MADV_WILLNEED), >fadvise(FADV_WILLNEED) or readahead() on the share memory segment? -- 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-mm.org/ . Don't email: email@kvack.org