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=-0.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,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 8F53BC2BB1D for ; Wed, 15 Apr 2020 02:13:00 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 4E50120732 for ; Wed, 15 Apr 2020 02:13:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lca.pw header.i=@lca.pw header.b="Xgmtiae8" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4E50120732 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lca.pw Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id EBCBC8E0005; Tue, 14 Apr 2020 22:12:59 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id E47578E0001; Tue, 14 Apr 2020 22:12:59 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id CE7588E0005; Tue, 14 Apr 2020 22:12:59 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0242.hostedemail.com [216.40.44.242]) by kanga.kvack.org (Postfix) with ESMTP id B3A6F8E0001 for ; Tue, 14 Apr 2020 22:12:59 -0400 (EDT) Received: from smtpin10.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with ESMTP id 7D2BD8245571 for ; Wed, 15 Apr 2020 02:12:59 +0000 (UTC) X-FDA: 76708466478.10.word48_712b2d8f95b49 X-HE-Tag: word48_712b2d8f95b49 X-Filterd-Recvd-Size: 3612 Received: from mail-qt1-f182.google.com (mail-qt1-f182.google.com [209.85.160.182]) by imf17.hostedemail.com (Postfix) with ESMTP for ; Wed, 15 Apr 2020 02:12:57 +0000 (UTC) Received: by mail-qt1-f182.google.com with SMTP id l13so9318577qtr.7 for ; Tue, 14 Apr 2020 19:12:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=lca.pw; s=google; h=content-transfer-encoding:from:mime-version:subject:date:message-id :references:cc:in-reply-to:to; bh=weMkaAzvj+hNbtrjRlRPzxZwIHavPYeWyFMYBU25sik=; b=Xgmtiae8nUbIEdgsCQHld1vRSUyRZ/ofQvJgNxnN529QqtT2ZKXEOsBLjnaM4XCdeK 5+1Rjg/vpOy9/MQedL5PAUK+LW6t0uc4HEv+uVPiVF8tQsPBPN9r+gqzETnGqId7oAaG Lov1fTdz0G0CDQGUk3tuFtVkV/m0ab01qgqCwybUrc/A9SrfHbS+gqyJ+qscuutZH1a/ koVjEqQ4mfi+D8VKtfWD+3PXB2i3p7Vsz0qAcNMj7Fffv7tGMDGI2Jkq761lMYal0FDI PhfReT3ksKxk65S7MxhLm+Z2+IUFPmL6Nle7QNs6zptcFPOovTu0r4sej4Objx0WXbsP vofw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:content-transfer-encoding:from:mime-version :subject:date:message-id:references:cc:in-reply-to:to; bh=weMkaAzvj+hNbtrjRlRPzxZwIHavPYeWyFMYBU25sik=; b=uKlb6mpjS2m/UPyZFjeKE+Ym+tuDZb7VHL6Ya6mPTs4xAur+V26xYzyOFPC4ptji0a acSMXCSrUcEJr5OHV6EWjU+sWCnhZT07xBPl/ifCmhIfocqVh2x5UstlDVHucg1gaXFE GnzxB/DUnhIsB9EyVXgZKYWQ/IYPV/7u3F03NbQUhBwWmxxp583T+q2i+6rcXgZjg9f7 LlMCXJDOksZNRfu/9kHiQ4ZkHw33fhJI48C+771GtGptZlndFbGmbTvFt/2wSC3TYfEk Vo1d6JW4M7NIAjOEfQxQ0zSZGhD2fyeLZfWowsl42uMkr0iyVmPQyySs5NTZsJDkRa5D pKMQ== X-Gm-Message-State: AGi0PuYdQJp6N4B2GlCm51Uv3sAvCFLueY/bELbrANXsoWhR50fOxKbx xIdbBTA0woRARI3fUBtoIMxw4wzqpYiQ8w== X-Google-Smtp-Source: APiQypLAjQWB+0il0HKEp74O2EwU16oS+GcYNyazJNkeYdEYPb7fFVtkodIl1ixmtjnUze8zo/dbng== X-Received: by 2002:ac8:164e:: with SMTP id x14mr12376094qtk.196.1586916776684; Tue, 14 Apr 2020 19:12:56 -0700 (PDT) Received: from [192.168.1.183] (pool-71-184-117-43.bstnma.fios.verizon.net. [71.184.117.43]) by smtp.gmail.com with ESMTPSA id x16sm10973949qts.0.2020.04.14.19.12.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 14 Apr 2020 19:12:56 -0700 (PDT) Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable From: Qian Cai Mime-Version: 1.0 (1.0) Subject: Re: linux-next: not-present page at swap_vma_readahead() Date: Tue, 14 Apr 2020 22:12:55 -0400 Message-Id: References: <874ktl1p7y.fsf@yhuang-dev.intel.com> Cc: Linux-MM , LKML , Minchan Kim , Hugh Dickins , Andrew Morton In-Reply-To: <874ktl1p7y.fsf@yhuang-dev.intel.com> To: "Huang, Ying" X-Mailer: iPhone Mail (17D50) 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 Apr 14, 2020, at 10:01 PM, Huang, Ying wrote: >=20 > Is it possible to bisect this? Yes, I=E2=80=99ll need to find a quick reproducer first by analyzing the fuz= zer=E2=80=99s last logs. >=20 > Because the crash point is identified, it may be helpful to collect and > analyze the status of the faulting page table and readahead ptes. But I > am not familiar with the ARM64 architecture. So I cannot help much > here. It happens for x86 as well where the trace is in the first email of this thr= ead.=