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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id DE75FC433EF for ; Mon, 30 May 2022 08:06:26 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 644E26B0071; Mon, 30 May 2022 04:06:26 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 5FB026B0072; Mon, 30 May 2022 04:06:26 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4BB986B0073; Mon, 30 May 2022 04:06:26 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0010.hostedemail.com [216.40.44.10]) by kanga.kvack.org (Postfix) with ESMTP id 38E276B0071 for ; Mon, 30 May 2022 04:06:26 -0400 (EDT) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id E795861467 for ; Mon, 30 May 2022 08:06:25 +0000 (UTC) X-FDA: 79521677130.18.AD1282C Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by imf15.hostedemail.com (Postfix) with ESMTP id 579D6A003C for ; Mon, 30 May 2022 08:06:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1653897984; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type; bh=FANm1doqZnuvQp8dqoXUwCaygSCiGRLAv8O5pwgkd1I=; b=hsM8w+c8qbQ3KdtrKWbbReSdQusUD+h70MZnZ6/9sTVksheY2TlDfyhPLT4i7SzPOK18e+ /R9sPtKyOM2tEB5qfE167TWewyZ8xrSsy3UcuB6IVpCi7YovU+inNDb6LuaT2ebi7jYzKS 7GU8YTS2ZrTGpiJbjcMNuz+c+l/Gy5g= Received: from mail-qt1-f198.google.com (mail-qt1-f198.google.com [209.85.160.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-564-yKSeL9zjNCGiOgo9LgNEBQ-1; Mon, 30 May 2022 04:06:24 -0400 X-MC-Unique: yKSeL9zjNCGiOgo9LgNEBQ-1 Received: by mail-qt1-f198.google.com with SMTP id o5-20020ac84285000000b002f942e1ab04so9629287qtl.7 for ; Mon, 30 May 2022 01:06:23 -0700 (PDT) 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:mime-version :content-disposition; bh=FANm1doqZnuvQp8dqoXUwCaygSCiGRLAv8O5pwgkd1I=; b=TvPWsD+VG2oO0OQzM0kArWrDop1xHSxVV2GGR0F+dIMvJ5SjBEGHPuSk/xRN/TMiY7 g/E8PE1FuCM0ZI5sDklOfJDaBGcNLmJWFZ6utLqsTVT4QVVeLsDI0mF4Ijq6R8PEytOh spDFo7Ggs4UohV1f558ytppXctU+CsuFTbP0VOXBRwcnZlIc/27uou5TOUQD8/w4b2fN tk0HO9dkRBD8cBeth9ywUFJpM2rJcy2fdhV96MiAuyMoIcO7tBBZZ8vs8BlC6EFxgkhQ 2hKlXKVpxxYZokV8PLrbhlYbOJBLHre6OA9JS4g6nJgQQN4FV25iYfhJD9NjQHGezpcC uUYw== X-Gm-Message-State: AOAM533FU6Yoz61ODpiCDXrN/fwZZvGDUnLQ7i2rnCzgtE22mC2pVnGG Ikmsu1uruCcrfeA8lFiRRLf6DTx2v6k/FhlkyjFyl1W0bD5LeLz7SaGGB9OEgpfW9c9OOHw6qgw YeP05WxP+b8XGbCHeNMHzzWP8eoeuoSFy8g5vZhpCSvaRgh7T3IBVJe/S3x4= X-Received: by 2002:a05:620a:1999:b0:6a3:9689:a673 with SMTP id bm25-20020a05620a199900b006a39689a673mr25290037qkb.209.1653897983174; Mon, 30 May 2022 01:06:23 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwwtUPQf7QR5FM8wxuF5OVRrZVbK4JcSC+4x2oKkmbJnqwcopcmaJy1biTf/RjE44gViBJnag== X-Received: by 2002:a05:620a:1999:b0:6a3:9689:a673 with SMTP id bm25-20020a05620a199900b006a39689a673mr25290026qkb.209.1653897982871; Mon, 30 May 2022 01:06:22 -0700 (PDT) Received: from zlang-mailbox ([209.132.188.80]) by smtp.gmail.com with ESMTPSA id 2-20020a370802000000b0069fc13ce204sm7173565qki.53.2022.05.30.01.06.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 May 2022 01:06:22 -0700 (PDT) Date: Mon, 30 May 2022 16:06:16 +0800 From: Zorro Lang To: linux-mm@kvack.org Cc: linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org Subject: Potential regression on kernel 5.19-rc0: kernel BUG at mm/page_table_check.c:51! Message-ID: <20220530080616.6h77ppymilyvjqus@zlang-mailbox> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-Rspamd-Queue-Id: 579D6A003C X-Rspam-User: Authentication-Results: imf15.hostedemail.com; dkim=pass header.d=redhat.com header.s=mimecast20190719 header.b=hsM8w+c8; spf=none (imf15.hostedemail.com: domain of zlang@redhat.com has no SPF policy when checking 170.10.133.124) smtp.mailfrom=zlang@redhat.com; dmarc=pass (policy=none) header.from=redhat.com X-Stat-Signature: 1zmx5pkc3gsikxzn8j48edatwixehdip X-Rspamd-Server: rspam05 X-HE-Tag: 1653897963-664449 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: Hi mm folks: I reported a regression bug on latest upstream linux: https://bugzilla.kernel.org/show_bug.cgi?id=216047 It's about xfs/ext4 + DAX, panic at mm/page_table_check.c:51! static struct page_table_check *get_page_table_check(struct page_ext *page_ext) { ==> BUG_ON(!page_ext); return (void *)(page_ext) + page_table_check_ops.offset; } It's 100% reproducible for me, by running fstests generic/623: https://git.kernel.org/pub/scm/fs/xfs/xfstests-dev.git/tree/tests/generic/623 on xfs or ext4 with DAX enabled. It doesn't look like a xfs or ext4 issue, so send to linux-mm to get more reviewing. More details please refer to above bug link. I changed its Pruduct to mm, but the Assignee isn't changed by default. Thanks, Zorro