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 5E6BCC43618 for ; Mon, 10 May 2021 11:31:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 46A1B60E0B for ; Mon, 10 May 2021 11:31:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236445AbhEJLcX (ORCPT ); Mon, 10 May 2021 07:32:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46386 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234996AbhEJLJ6 (ORCPT ); Mon, 10 May 2021 07:09:58 -0400 Received: from mail-ed1-x536.google.com (mail-ed1-x536.google.com [IPv6:2a00:1450:4864:20::536]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AAD1BC06175F for ; Mon, 10 May 2021 04:06:01 -0700 (PDT) Received: by mail-ed1-x536.google.com with SMTP id g14so18224684edy.6 for ; Mon, 10 May 2021 04:06:01 -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=0F9bimE8+5EWA3eWwl/8LEBaz81yCMOXbgA6TyW/oLg=; b=tzb8l/S32DpuUXobAviyA/LsyMVqU4VX5cd/39E/y5uE0Dw26QO40Sk7eR2uFraGQg kOBeLx72xxyP8gyOSrN/20YTeoouE6jUWi6jWe4EBQBPzjrzAZ5uSXm5Mjq/z5AErXUH QN2PrzMF+QrBTGvprRMfzIfF1GcrENyF6BmI0ujj8wi5EqR2jjl2oHrdXapdLzUDEZS1 aUk4PczcIlg8C2UJhZQnOVLHxWUKZ82D4DT8Ah5gOsaB4n/7iC2l+9D8+M9D0IdWaCAl lY1Z9Jz3/4ghP2qXKST0qG0vliZevO7FXT9D6L8A6BruvUCfMnLiCIHCSuxhGZ0hdBY1 mBTw== 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=0F9bimE8+5EWA3eWwl/8LEBaz81yCMOXbgA6TyW/oLg=; b=nzmEZPS4IrHyAzCoOu8oI5lQD4liiU3LYEaha0er7QlGZCtkbcjGvV8dphOU1lSRIz dLYVH7VeY6z0gZ6jgIFk1wlga9pS22OTVRZ4UwVUpv6DtdNJcl69bC85tz75IBWcaCdk 6WH0C7Zulw68qo0kokhiWYjYVm53kr3H0xqvcUTJNCcdhqU27K4w/OVW6tUcBhW09gqn ewUe9hBW0+TLoRQBI5ohgg64QtHlIBK/yH8dZL/VNrsu8TyVwxuBSipbCipfZZp06VIM oS+5c1gJ2AHBM2zfmZP1GCzMr8tcPsKPkM9GwCrVLS3MNAxmbKCzvNqCpA3N0DCSM0cA rX4g== X-Gm-Message-State: AOAM531Z6h1XtAwOxz8RGvsNHDDRyxYNQY1qwRkhrJsj3uKOkaWDcmcH PDtHZG1NyTspSPm+tC6jK11SHX2LihhJzuHBFnXClaKSI5ITBZ1+ X-Google-Smtp-Source: ABdhPJz4pzHKioBq47oVokcL8AdJFYCEpqNrQDVgKPBRT7TU9XuDIhRCrTg1zf5pdfHmEd4/boz8NFY6VRVmGEiIeq0= X-Received: by 2002:aa7:c15a:: with SMTP id r26mr29236413edp.78.1620644759525; Mon, 10 May 2021 04:05:59 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Naresh Kamboju Date: Mon, 10 May 2021 16:35:48 +0530 Message-ID: Subject: Re: Unhandled fault: imprecise external abort (0x1406) at 0x00000000 - PC is at xhci_hub_control To: linux-usb@vger.kernel.org, open list , lkft-triage@lists.linaro.org Cc: peter.chen@kernel.org, jackp@codeaurora.org, NXP Linux Team , Greg Kroah-Hartman , Alan Stern , mathias.nyman@intel.com, Li Jun Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On Mon, 10 May 2021 at 16:22, Naresh Kamboju wrote: > > On Mon, 10 May 2021 at 16:02, Naresh Kamboju wrote: > > > > The kernel crash reported on arm architecture BeagleBoard-X15 device running > > Linux next 5.13.0-rc1-next-20210510 while booting the device. > > > > [ 4.956085] xhci-hcd xhci-hcd.1.auto: xHCI Host Controller > > [ 4.961639] xhci-hcd xhci-hcd.1.auto: new USB bus registered, > > assigned bus number 2 > > [ 4.969360] xhci-hcd xhci-hcd.1.auto: Host supports USB 3.0 SuperSpeed > > [ 4.976165] usb usb2: We don't know the algorithms for LPM for this > > host, disabling LPM. > > [ 4.985321] hub 2-0:1.0: USB hub found > > [ 4.989196] hub 2-0:1.0: 1 port detected > > [ 5.002197] Waiting for root device > > PARTUUID=6b10e805-12ad-b44e-88b8-3abf3d5f52ed... > > [ 5.022918] 8<--- cut here --- > > [ 5.026000] Unhandled fault: imprecise external abort (0x1406) at 0x00000000 > > [ 5.033root > > 081] pgd = ff6a1748 > > [ 5.035797] [00000000] *pgd=00000000 > > [ 5.039398] Internal error: : 1406 [#1] SMP ARM > > [ 5.043975] Modules linked in: > > [ 5.047027] CPU: 0 PID: 22 Comm: kworker/0:1 Not tainted > > 5.13.0-rc1-next-20210510 #1 > > [ 5.054809] Hardware name: Generic DRA74X (Flattened Device Tree) > > [ 5.060943] Workqueue: pm pm_runtime_work > > [ 5.065002] PC is at xhci_hub_control+0xd00/0x248c > > [ 5.069824] LR is at arm_heavy_mb+0x44/0x48 > > Since, this crash is not easily reproducible I could bisect it. sorry, i mean i could *not* Since, this crash is not easily reproducible I could not bisect it. - Naresh