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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ABC6EC433EF for ; Wed, 13 Oct 2021 17:20:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 87E2F60F21 for ; Wed, 13 Oct 2021 17:20:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230527AbhJMRW1 (ORCPT ); Wed, 13 Oct 2021 13:22:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33968 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230404AbhJMRWZ (ORCPT ); Wed, 13 Oct 2021 13:22:25 -0400 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 32433C061570 for ; Wed, 13 Oct 2021 10:20:22 -0700 (PDT) Received: by mail-pj1-x102b.google.com with SMTP id lk8-20020a17090b33c800b001a0a284fcc2so4954195pjb.2 for ; Wed, 13 Oct 2021 10:20:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osandov-com.20210112.gappssmtp.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=22NH0xsWoI2an3AuExsbM21Zf6lOFtjEGxxQ33oX8Nc=; b=jcA3VJL173DwGp9DG13hEbd0O64LIheqV9amzdTagYI5qaS2BN0HGE0KX0EOplTkTw kWP2KE4NFZpqHy5Sx+d4+ZydX8aTYH1zfdu4xznUe9PBiqDwbObbDLKDzFY+2t40dtrZ Z4hcl04HcxyYvThsDAcbVnQwbE09nY4gxvlBmy9JvqAQXNXiEtPa3MkzxXbJvQ6rcnNZ U3TYYPPxsKSMLsfxzZK/qyafB1/dHDQyRdDsbrhO5kISIYYV5GTFKk2qp7nzNfyQUjGM zfngHCYy0G/ImpI2bWp1l9nvQ+VYbdJpNDesmSic50IShr0gL70r2GpReGUzqTIWTQ1F lXGg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=22NH0xsWoI2an3AuExsbM21Zf6lOFtjEGxxQ33oX8Nc=; b=tJIXJbqlzMXAi0fRTmYzGq1b/7Dm3Yt6TtnSPvhz8c2f3ego/Lhg9ve4rldtrALzQK mGwqWBp25/gSHqmw/8+LBKIDGE8sNFaaY9CV0FwUbTXa6tPHibXpaQ9yBHEnQkF7rhS/ Co0TuUBDIcv8SX8l4Z78StxqrMjW/8E1X37FxA7PAOnOP9SWSY5DtT0csa1EwDKAP04K 5fw6hOeUfoRHJpKPMqOx2cpo70B90CgPvcTt2mLRtxW6BQiffjWdNu/9DxRj10tfFhc3 djfrJh7J+dYmpppRq3u4Bc0DWKKk85ltg2IXUirFGp7eznkyWgxemPwZA7kkCc5scB+e IryA== X-Gm-Message-State: AOAM530JEkvLXSJB+NZ5MVeR9icbI/M7/o6tPWA7pAChn+uFhjTElKws 2SPirIgqYWr9ov9wkNYTuWfLMQ== X-Google-Smtp-Source: ABdhPJw4quGMFTF4LLqBHW24M6OsRjqyDwVDjpGtI1ocWP1KgUPK01O+ixjjEnMjdSck+SAqEozwBQ== X-Received: by 2002:a17:90a:7d11:: with SMTP id g17mr575012pjl.19.1634145621539; Wed, 13 Oct 2021 10:20:21 -0700 (PDT) Received: from relinquished.localdomain ([2620:10d:c090:400::5:b911]) by smtp.gmail.com with ESMTPSA id k6sm143577pfg.18.2021.10.13.10.20.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Oct 2021 10:20:21 -0700 (PDT) Date: Wed, 13 Oct 2021 10:20:18 -0700 From: Omar Sandoval To: Wang Yugui Cc: linux-btrfs@vger.kernel.org, kernel-team@fb.com Subject: Re: [RFC PATCH] btrfs: fix deadlock when defragging transparent huge pages Message-ID: References: <20211013114106.74EC.409509F4@e16-tech.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211013114106.74EC.409509F4@e16-tech.com> Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Wed, Oct 13, 2021 at 11:41:06AM +0800, Wang Yugui wrote: > Hi, > > I failed to use this reproducer to reproduce this problem. > > kernel: 5.15.0-0.rc5 > kernel config: CONFIG_TRANSPARENT_HUGEPAGE_MADVISE=y > mount option: rw,relatime,ssd,space_cache=v2,subvolid=5,subvol=/ > btrfs souce: 5.15.0-0.rc5, misc-next You also need CONFIG_READ_ONLY_THP_FOR_FS=y.