From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE4BFC7619D for ; Thu, 20 Feb 2020 00:25:29 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id AD16621D56 for ; Thu, 20 Feb 2020 00:25:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ShTf/sQo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD16621D56 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 2F0E66B0005; Wed, 19 Feb 2020 19:25:29 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 2A1226B0006; Wed, 19 Feb 2020 19:25:29 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 1B6BA6B0007; Wed, 19 Feb 2020 19:25:29 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0216.hostedemail.com [216.40.44.216]) by kanga.kvack.org (Postfix) with ESMTP id 01EC06B0005 for ; Wed, 19 Feb 2020 19:25:28 -0500 (EST) Received: from smtpin04.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id B541D181AEF10 for ; Thu, 20 Feb 2020 00:25:28 +0000 (UTC) X-FDA: 76508611536.04.limit65_2fc5d265d4e45 X-HE-Tag: limit65_2fc5d265d4e45 X-Filterd-Recvd-Size: 2887 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf18.hostedemail.com (Postfix) with ESMTP for ; Thu, 20 Feb 2020 00:25:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=AdGVQ3cznYI0a2/gr6Nk+mxWx3b7SSERzdEmJxToB+I=; b=ShTf/sQofgKIasf9YZhCoTdMO/ iG1IWZfS45uFZoSkGzQq/cX4oofj9rClX7qLXVJx9MZ0U4/v+oOhc3mqI7e5Z34ZJxAcFn/3pkZC9 wvelSd8rS3X8XsbhqH66QmA9i3kC2NrD3nAC/5osS4l+Ud/KRrxscV0YyZJOzGVuDzksoR0kkCElv ZGSOpYjJiXKT+ZHSW5luEVvzk1f9xow8OfF9Ja81kldz29oxFfC4Y2eH1m9oeVK0JPGgQcyUngFCp msx6XJz+BHJyNyK6QEF4musj+jfJKnYI7h8y3PTksXXXLxrxLjhzgXhj5X8O5xOFQJ9jjZuoyjeVv lp3BNxBA==; Received: from willy by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1j4Zea-0007am-U7; Thu, 20 Feb 2020 00:25:20 +0000 Date: Wed, 19 Feb 2020 16:25:20 -0800 From: Matthew Wilcox To: Andrew Morton Cc: Song Liu , dennis.lissov@gmail.com, bugzilla-daemon@bugzilla.kernel.org, linux-mm@kvack.org Subject: Re: [Bug 206569] BUG at mm/filemap.c:2529: VM_BUG_ON_PAGE(page_to_pgoff(page) != offset) Message-ID: <20200220002520.GT24185@bombadil.infradead.org> References: <20200219144635.3b7417145de19b65f258c943@linux-foundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200219144635.3b7417145de19b65f258c943@linux-foundation.org> X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Wed, Feb 19, 2020 at 02:46:35PM -0800, Andrew Morton wrote: > > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > On Wed, 19 Feb 2020 21:33:32 +0000 bugzilla-daemon@bugzilla.kernel.org wrote: > > > https://bugzilla.kernel.org/show_bug.cgi?id=206569 > > > > --- Comment #1 from Denis Lisov (dennis.lissov@gmail.com) --- > > Upd. Double-checking my kernel settings I found that I've accidentally enabled > > experimental CONFIG_READ_ONLY_THP_FOR_FS - may be related to that. > > > > In my new kernel build the problem failed to reproduce (I've disabled > > CONFIG_READ_ONLY_THP_FOR_FS, CONFIG_KSM and switched from > > CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS to CONFIG_TRANSPARENT_HUGEPAGE_MADVISE - > > sorry for multiple changes). > > Thanks. > > Song Liu, could you please take a look? This is a compound page ... Dennis, are you willing to apply this patch https://lore.kernel.org/linux-mm/20200211001536.1027652-12-jhubbard@nvidia.com/ and retest? It will give us more information about what's going on.