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=-5.8 required=3.0 tests=BAYES_00,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 CEA04C48BDF for ; Tue, 15 Jun 2021 11:26:45 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 7928E61455 for ; Tue, 15 Jun 2021 11:26:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7928E61455 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 0D49C6B0070; Tue, 15 Jun 2021 07:26:45 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 084F56B0071; Tue, 15 Jun 2021 07:26:45 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E407B6B0072; Tue, 15 Jun 2021 07:26:44 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0104.hostedemail.com [216.40.44.104]) by kanga.kvack.org (Postfix) with ESMTP id AFF5F6B0070 for ; Tue, 15 Jun 2021 07:26:44 -0400 (EDT) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 568D2909A for ; Tue, 15 Jun 2021 11:26:44 +0000 (UTC) X-FDA: 78255730728.08.E4190F0 Received: from mail-ej1-f45.google.com (mail-ej1-f45.google.com [209.85.218.45]) by imf14.hostedemail.com (Postfix) with ESMTP id 7CC1CC00CBF2 for ; Tue, 15 Jun 2021 11:26:34 +0000 (UTC) Received: by mail-ej1-f45.google.com with SMTP id g20so22077532ejt.0 for ; Tue, 15 Jun 2021 04:26:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Blp/IrsrSShZRKUsMEp/iJdzOG+tUUDSwjzDuCyoAwk=; b=xX411P79z/T56H3ueR41/3ATmURuhk9lY0Zqm8WA8n0z449r9OJ+eLJpY1Xin8ZKyG dHhQAPfj8o4kT0lWHzFUIjXUa+dM35JdLFAWg8Xv68u+KWFfo2Pw3lkcTwYYDKCh7YeG tdVrmZWWIbABT2zvE5+EnT6W57ixhegoZ657XwEFCrgHOIJxFLf6edio4WKDZQNa/9X0 nyroe5B54Djn9vGULpI1nzoIDbmAMUc/jXkBpFAmbu6haeY64pBEWBTR2qpHB8WrK+O3 VKW8aNaPWt2tvOBj+uY5lmrjk2JrRb5wy3/j795Sakn692JspyTEE49tsd9hf1dORKor 3pSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Blp/IrsrSShZRKUsMEp/iJdzOG+tUUDSwjzDuCyoAwk=; b=NCnLP0MaGH7oNds1oQxi0aFmK4CO8ZiH7ZHmSCvgKLEZ+4cg8GCS1Qk48wk3ZtNNpZ JGW8vnQxuw1F/1x37SIUo1315QBbrH/x5vfiZWOoHvGSvu+hNf9NtZFTr1mqndMTLvZ4 FDwzupFMKqBjCA/N6VehqBanFFeMLXAXjttUdPttr+2BYug+yxHSJeTJNR9SvBbb8xxp tG+Bk7MlIPWwTdynNlOgjfVKQjBWPcTRgYTaxvg+oH6oWVQmucT42/HZE6uWDS2LRW4I p8f8JRy7tmGMpu1CVWpSUamDs3i9+cO1TLADtZoo/2VvXi4gPdPffC+EOtn9jDmeMj1D j4Qw== X-Gm-Message-State: AOAM532E2zaQCfI7HCPaXzTuG3Oiq3ZDaYpwjA2Kb3Dzs+mT8GZowKjp XIv8NbG7XhBCjO1LKPOZ8Is/ubp2fIzG+WdaC2Izag== X-Google-Smtp-Source: ABdhPJySGALxoxfe1c0PKH/BE3HG448iqXZfqzm4W3zQEc1OEoF6taRfIyCS5e5Zy6u6tlSLIohV3PLljO9l7JJrkfU= X-Received: by 2002:a17:906:480a:: with SMTP id w10mr3772979ejq.18.1623756402663; Tue, 15 Jun 2021 04:26:42 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Naresh Kamboju Date: Tue, 15 Jun 2021 16:56:31 +0530 Message-ID: Subject: Re: [next] [arm64] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068 To: Linux-Next Mailing List , linux-mm , Linux ARM , open list , Will Deacon , lkft-triage@lists.linaro.org, regressions@lists.linux.dev Cc: Andrew Morton , Stephen Rothwell , Arnd Bergmann , Ard Biesheuvel , Catalin Marinas , Mike Rapoport , Christophe Leroy Content-Type: text/plain; charset="UTF-8" Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=linaro.org header.s=google header.b=xX411P79; spf=pass (imf14.hostedemail.com: domain of naresh.kamboju@linaro.org designates 209.85.218.45 as permitted sender) smtp.mailfrom=naresh.kamboju@linaro.org; dmarc=pass (policy=none) header.from=linaro.org X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 7CC1CC00CBF2 X-Stat-Signature: rdu77tmh6j1mgteazbsmy5q9s8oke6oe X-HE-Tag: 1623756394-794802 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 Tue, 15 Jun 2021 at 16:49, Naresh Kamboju wrote: > > Following kernel crash reported while booting linux next 20210615 tag > on qemu_arm64. Similar crash reported while booting Linux next 20210615 tag kernel on the qemu arm. https://lkft.validation.linaro.org/scheduler/job/2901326#L441 > > Crash log: > ------------- > [ 0.767379] Unable to handle kernel NULL pointer dereference at > virtual address 0000000000000068 > [ 0.769815] Mem abort info: > [ 0.770735] ESR = 0x96000004 > [ 0.771598] EC = 0x25: DABT (current EL), IL = 32 bits > [ 0.773008] SET = 0, FnV = 0 > [ 0.773865] EA = 0, S1PTW = 0 > [ 0.774844] FSC = 0x04: level 0 translation fault > [ 0.776195] Data abort info: > [ 0.776968] ISV = 0, ISS = 0x00000004 > [ 0.778010] CM = 0, WnR = 0 > [ 0.778961] [0000000000000068] user address but active_mm is swapper > [ 0.780643] Internal error: Oops: 96000004 [#1] PREEMPT SMP > [ 0.782189] Modules linked in: > [ 0.783098] CPU: 2 PID: 1 Comm: swapper/0 Not tainted > 5.13.0-rc6-next-20210615 #1 > [ 0.785239] Hardware name: linux,dummy-virt (DT) > [ 0.786626] pstate: 00000005 (nzcv daif -PAN -UAO -TCO BTYPE=--) > [ 0.788352] pc : blk_finish_plug+0x88/0x270 > [ 0.789598] lr : blk_queue_write_cache+0x34/0x80 d.com/1tyksDCCPiTvc0x6psxC3JvSWqJ/config - Naresh