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 9986BC433F5 for ; Mon, 30 May 2022 08:06:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231976AbiE3IGa (ORCPT ); Mon, 30 May 2022 04:06:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229668AbiE3IG2 (ORCPT ); Mon, 30 May 2022 04:06:28 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 811D475228 for ; Mon, 30 May 2022 01:06:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1653897985; 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=FT3lr3xoE6dnVJ+dLv3lWgb68E1qUjHWooUW6VCwTTWG2U9HQPbTCiTRQTbi5TVtcq2eId yJUJrZqOuJ8tKEPv7Y9f75GoYTQ78m7Z5RDtgd8fpz7ghjAtq+B6sT+JekfDYc2gAo2HWD y4YB4gfUctlQqt85MlRcWHC+15AUj2U= Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-623-boJfrSKvMwCvFn5TqtVSJg-1; Mon, 30 May 2022 04:06:23 -0400 X-MC-Unique: boJfrSKvMwCvFn5TqtVSJg-1 Received: by mail-qk1-f198.google.com with SMTP id bm2-20020a05620a198200b006a5dac37fa2so5596035qkb.16 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=RCPyf+abhjQcGz0C0rdCx4IL2rGWKXM8AEEb/tx4GgSO5/8ylxJy8QPFjpkQsWag4s vGSDsx0EfxO+KOU6JXTRhgTbOOFwrv52Q5TMRbKmucaJcp+enYj44PTitqHuBNQARvbU SwGUdhSQhyc/PIB/JCx4URm9kHgvvJtZmeXApBBvQtq+aSd5hiYli3Z/iyCGU3jWiwsR 1JA0hB0k5gZZ+IYarT9lVunPRiLNKIwLQq2SfnsUi8vpyXpqWSD9s2o0qcR7u/6MfL6+ LynIKpweI7lJxoFiT/SZu2VHkiiyaA50d7j9MG368yZ3Yrj6OO5XqebhA/eRrdEpD1+t zxNg== X-Gm-Message-State: AOAM533pcE5FnNXeIINlMntRvepBejpYTDjHA/sEohN17AgCSaj4e5eU i6GV8/xAob3lzYNW3wav0c1pyVn9dc1f60E3diTZvI0EEm8k8xVGPVn8NoQnwj8/OOlXsAwggF/ pY8HEY7U3I/jyYYbrJOQppw== X-Received: by 2002:a05:620a:1999:b0:6a3:9689:a673 with SMTP id bm25-20020a05620a199900b006a39689a673mr25290035qkb.209.1653897983114; 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 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org 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