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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 980C8C43334 for ; Fri, 24 Jun 2022 23:17:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229755AbiFXXR0 (ORCPT ); Fri, 24 Jun 2022 19:17:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48120 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229797AbiFXXRZ (ORCPT ); Fri, 24 Jun 2022 19:17:25 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EEB488B3B; Fri, 24 Jun 2022 16:17:25 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id E9682B82C96; Fri, 24 Jun 2022 23:17:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 4D5F4C34114; Fri, 24 Jun 2022 23:17:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1656112642; bh=SRbeoCVoiP6sAFPfqupaswhL4ShhqUzJCFcbcVdT1ws=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=WasipiMD3gyvv8IhJSrx1zqYqylQVtMNii+iyRVfl/rJC9Q+8LGcF3wvYtYneavOB esoo5iPRq1xTCGkgbKkETprVcICaaACnkkLB6rY6EQ5zdn+fjcvSEwGMzn8qWG2fzm sVrHZISZSeo+DgynPlJ3YuKMNRzO6TPlFaPaO3d1L22HuOr4Q4BT2t50h5nPOaA8d9 +s3LEW6ofy8z9jNyNXcV10qtKwUi6a9cHzkbwwajvVQwpwup3UMtMPdIA6mSfg+L9G m7UXT840HdH3MXqH/pcQMKF3prpUJl5AAKEox9pZ1APA0KADGeM8cIhQq3wcRDd+Fx oWUgUTqYmwB+A== Date: Fri, 24 Jun 2022 16:17:20 -0700 From: Nathan Chancellor To: Matthew Wilcox Cc: Andrew Morton , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-next@vger.kernel.org Subject: Re: Triggered assertion from "mm: Add an assertion that PG_private and folio->private are in sync" Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-next@vger.kernel.org On Sat, Jun 25, 2022 at 12:11:22AM +0100, Matthew Wilcox wrote: > On Fri, Jun 24, 2022 at 02:58:28PM -0700, Nathan Chancellor wrote: > > Hi Matthew, > > > > I bisected a boot failure on one of my test machines to your commit > > c462f63731e0 ("mm: Add an assertion that PG_private and folio->private > > are in sync"), which landed in next-20220624. I didn't see this patch > > posted to any mailing list on lore, hence this separate thread; > > apologies if it was and I missed it. I didn't see this reported yet but > > I see the assertion triggered when systemd-zram-setup@zram0 runs: > > urgh, sorry about that. i really need to wean zsmalloc off using struct > page. i'll drop this patch; feel free to just revert it, there's nothing > that will depend on it. Ack, I'll do just that, thanks a lot for the quick reply! Cheers, Nathan