From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx201.postini.com [74.125.245.201]) by kanga.kvack.org (Postfix) with SMTP id E3C8E6B005A for ; Fri, 1 Jun 2012 10:15:04 -0400 (EDT) Date: Fri, 1 Jun 2012 10:14:59 -0400 From: Dave Jones Subject: Re: WARNING: at mm/page-writeback.c:1990 __set_page_dirty_nobuffers+0x13a/0x170() Message-ID: <20120601141459.GC1732@redhat.com> References: <20120530163317.GA13189@redhat.com> <20120531005739.GA4532@redhat.com> <20120601023107.GA19445@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: To: Hugh Dickins Cc: Linus Torvalds , Andrew Morton , Cong Wang , linux-kernel@vger.kernel.org, linux-mm@kvack.org On Fri, Jun 01, 2012 at 01:44:44AM -0700, Hugh Dickins wrote: > So I'm wondering if your trinity fuzzer happens to succeed a lot more > often on madvise MADV_REMOVEs than fallocate FALLOC_FL_PUNCH_HOLEs, and > the bug you converged on is not in tmpfs, but in ext4 (or xfs? or ocfs2?), > which began to support MADV_REMOVE with that commit. One more thing: I happened to see this during a kernel build last night on another machine too, so it's not just fuzzing fallout. I'm surprised more people aren't seeing it. Dave -- 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/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org