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 1D31CC48BDF for ; Tue, 15 Jun 2021 11:26:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB57A61107 for ; Tue, 15 Jun 2021 11:26:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230045AbhFOL2u (ORCPT ); Tue, 15 Jun 2021 07:28:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53760 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229689AbhFOL2t (ORCPT ); Tue, 15 Jun 2021 07:28:49 -0400 Received: from mail-ej1-x62f.google.com (mail-ej1-x62f.google.com [IPv6:2a00:1450:4864:20::62f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 25C96C061574 for ; Tue, 15 Jun 2021 04:26:44 -0700 (PDT) Received: by mail-ej1-x62f.google.com with SMTP id h24so21987969ejy.2 for ; Tue, 15 Jun 2021 04:26:44 -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=IKlj2l8JyuyymHWnWTxq8MYbgluSNxGfI54MqD1FBMVRByWVh/4zPH+zUelgrnkKkU hHnNf+fJ0BcYNJowRO21bRdZ+0rHe1HOjJmNSipU75x3lAaYy8WBrfemZpFTsThnkecb G/uvk7TQlX6kow0Z54g6BEbMHC0rrbY+WXF+R1V9gM37p9ERsjG2iBxUu63QUzJk+iJE QfP31x5ron5kcuC/zVBSdyfoTbxhAKXHc9RbILF7MWGUKBED79DGBqwJUzTgwzgQTpZn p+0OZmyvBh/wY/PBP+xyPUwKcGx3Yb8y4g8oG2I+Fh2BRCSdd3o68pMu1Agm9thp/OBm L9lg== X-Gm-Message-State: AOAM530Fyy4U2i4D1AJsza2+4/nuBTZgLroEKKe2XKh1AAkyTi2ZbFBS 0cAbyRSdeI+EIIfouBkem1nufr5AploNgFlOtuV2lA== 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" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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