Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754299AbbLOTmh (ORCPT ); Tue, 15 Dec 2015 14:42:37 -0500 Received: from gum.cmpxchg.org ([85.214.110.215]:49954 "EHLO gum.cmpxchg.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754152AbbLOTmg (ORCPT ); Tue, 15 Dec 2015 14:42:36 -0500 Date: Tue, 15 Dec 2015 14:42:13 -0500 From: Johannes Weiner To: Dmitry Vyukov Cc: Andrew Morton , "Kirill A. Shutemov" , Vlastimil Babka , Eric B Munson , David Rientjes , Andrea Arcangeli , Jeff Vander Stoep , Alexander Kuleshov , "linux-mm@kvack.org" , LKML , Sasha Levin , Hugh Dickins , syzkaller , Kostya Serebryany , Alexander Potapenko , Eric Dumazet Subject: Re: BUG_ON(!PageLocked(page)) in munlock_vma_page/migrate_pages/__block_write_begin Message-ID: <20151215194213.GA15672@cmpxchg.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 752 Lines: 15 Hi Dmitry, On Tue, Dec 15, 2015 at 08:23:34PM +0100, Dmitry Vyukov wrote: > I am seeing lots of similar BUGs in different functions all pointing > to BUG_ON(!PageLocked(page)). I reproduced them on several recent > commits, including stock 6764e5ebd5c62236d082f9ae030674467d0b2779 (Dec > 9) with no changes on top and no KASAN/etc. This should be fixed in newer kernels with this commit: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dfd01f026058a59a513f8a365b439a0681b803af -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/