From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wr0-f197.google.com (mail-wr0-f197.google.com [209.85.128.197]) by kanga.kvack.org (Postfix) with ESMTP id 0B3D62806EA for ; Thu, 20 Apr 2017 09:32:50 -0400 (EDT) Received: by mail-wr0-f197.google.com with SMTP id g67so1255414wrd.0 for ; Thu, 20 Apr 2017 06:32:49 -0700 (PDT) Received: from mail-wm0-x241.google.com (mail-wm0-x241.google.com. [2a00:1450:400c:c09::241]) by mx.google.com with ESMTPS id l62si18107958wml.35.2017.04.20.06.32.48 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 20 Apr 2017 06:32:48 -0700 (PDT) Received: by mail-wm0-x241.google.com with SMTP id o81so10852646wmb.0 for ; Thu, 20 Apr 2017 06:32:48 -0700 (PDT) Date: Thu, 20 Apr 2017 15:29:20 +0200 From: Miklos Szeredi Subject: Re: [fuse-devel] trying to steal weird page? Message-ID: <20170420132920.GA5214@veci.piliscsaba.szeredi.hu> References: 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: Antonio SJ Musumeci Cc: fuse-devel , linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org On Wed, Apr 12, 2017 at 11:30:00AM -0400, Antonio SJ Musumeci wrote: > A user reported getting the below errors when *not* using direct_io > but atomic_o_trunc, auto_cache, big_writes, default_permissions, > splice_move, splice_read, and splice_write are enabled. > > Any ideas? I think this is due to the PageWaiters bit added in v4.10 by 62906027091f ("mm: add PageWaiters indicating tasks are waiting for a page bit") That bit is harmless and probably left behind due to a race. Following patch should fix the warning. Thanks, Miklos --- fs/fuse/dev.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -811,6 +811,7 @@ static int fuse_check_page(struct page * 1 << PG_uptodate | 1 << PG_lru | 1 << PG_active | + 1 << PG_waiters | 1 << PG_reclaim))) { printk(KERN_WARNING "fuse: trying to steal weird page\n"); printk(KERN_WARNING " page=%p index=%li flags=%08lx, count=%i, mapcount=%i, mapping=%p\n", page, page->index, page->flags, page_count(page), page_mapcount(page), page->mapping); -- 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