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=-0.8 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIMWL_WL_MED, URIBL_BLOCKED autolearn=ham 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 56332C433F5 for ; Tue, 28 Aug 2018 16:09:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 04F3920893 for ; Tue, 28 Aug 2018 16:09:18 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20150623.gappssmtp.com header.i=@kernel-dk.20150623.gappssmtp.com header.b="LW6/k9Ay" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 04F3920893 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727494AbeH1UBi (ORCPT ); Tue, 28 Aug 2018 16:01:38 -0400 Received: from mail-it0-f67.google.com ([209.85.214.67]:39084 "EHLO mail-it0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726807AbeH1UBi (ORCPT ); Tue, 28 Aug 2018 16:01:38 -0400 Received: by mail-it0-f67.google.com with SMTP id h1-v6so1257488itj.4 for ; Tue, 28 Aug 2018 09:09:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=MOD4MooAAgBdlMNHxIRpkxm+GUbz8nH1096W3q30vFE=; b=LW6/k9Ayn8K3H7hju3ZkJ/uoHBKMJWcZv8OMyeUukDupUvUVu+OKklIqbi0nCrzjmf v9A8wsI9MvaB9T05cevEXyb5UoPTbJEnaJ6NeODzrF283DxWVMMRk9DL2M4qtWU3lv+1 ZYKeU7rnypOX8qoDplD3ld8/MD73d6hKBAndHgM7Y7Br09X2ZjPoy7FwzQt14fBQ6pJc tDdoqXWnY/aUlMuCIIGJjLur7bqqcb2hYushSmEKkEFvrfCxqh7C5Zsz8FDVPFaAthQP LyPqHSOVhda3s/Y31TpMXBsl30d/gK/NB2dkGSVfCir4t3JqLPUCsLoj4cGcOnrbCqBG iBng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=MOD4MooAAgBdlMNHxIRpkxm+GUbz8nH1096W3q30vFE=; b=kH1zzCPnUam9F/rX1RjWHiZikxBLswY2xJqTZEAWXROYQHExfh0HFLA71v7ieVo+QG ppwSc7Hg+s/Y+4Te7KmBo2GOLfHmxSWZQ4e34kKKBslv3Pm74cUHoGMaQ3rJbsfSUL4w h/U9+hcZDl7HPzH+wOKxSuAnSSWWsa7AxHhSqOMMV0ybkISJ5ULumLzyx2WFdmVlMm0c bdq4RU7L+xeQNWAzd5u21w2wRQsyI+uCVY3UbFq07KASl9Kv28BYyH/gumGePZhy+udO tqj/PinyDAxhHsb4znMPCj1Vj/8gDk2E/i+9dvefM949UG4gOdyH8ytx1FEnOV3L1u9P PFWQ== X-Gm-Message-State: APzg51BR4otbF2pdiPC/koL9PgxqueIUklmdM/p8q4LSlZ8ztus5J7L+ eApS5UE5hb2N/0/sNuPczoEsNA== X-Google-Smtp-Source: ANB0Vdarrf0jDlHP2Sej/S8WoyCNyxeFgblf9JTl5MO20Jf6Cx9EH2Edafdj5doWPUoQSrBbCxtmpQ== X-Received: by 2002:a24:dd88:: with SMTP id t130-v6mr2121764itf.129.1535472555910; Tue, 28 Aug 2018 09:09:15 -0700 (PDT) Received: from [192.168.1.56] ([216.160.245.98]) by smtp.gmail.com with ESMTPSA id r126-v6sm774757iod.7.2018.08.28.09.09.13 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 28 Aug 2018 09:09:14 -0700 (PDT) Subject: Re: [PATCH] Revert "blk-mq: issue directly if hw queue isn't busy in case of 'none'" To: Ian W MORRISON Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, kashyap.desai@broadcom.com, loberman@redhat.com, osandov@fb.com, hch@lst.de, bart.vanassche@wdc.com, hare@suse.de, ming.lei@redhat.com References: <20180828154727.3589-1-ianwmorrison@gmail.com> <211633e2-a812-d489-e11c-c3f271c465fc@kernel.dk> From: Jens Axboe Message-ID: <1cbdba28-3ff5-2bbe-a2cf-b533249c6970@kernel.dk> Date: Tue, 28 Aug 2018 10:09:12 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 8/28/18 10:07 AM, Ian W MORRISON wrote: > On Wed, 29 Aug 2018 at 01:48, Jens Axboe wrote: >> >> On 8/28/18 9:47 AM, Ian W MORRISON wrote: >>> Kernel oops when booting on Bay and Cherry Trail devices >>> such as Intel Compute Stick. Bisected as: >>> >>> commit 6ce3dd6eec11 ("blk-mq: issue directly if hw queue isn't busy in case of 'none'") >>> >>> This patch reverts the above commit. >> >> Did I miss the posting of that oops? Just curious where this is >> going wrong. Not adverse to reverting, but I'd like to try to >> understand the issue first. >> >> -- >> Jens Axboe >> > > I've not been able to capture it however manually transcribing what is > on the screen: > > mmc0: Got data interrupt 0x00000002 even though no data operation > > followed by: > > mmc0: sdhci: ============= SDHCI REGISTER DUMP ============== > > Do you want any specific register value or should I transcribe each > (as I am working from an image taken at boot)? Just take a picture of the screen, that should be good enough. -- Jens Axboe