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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4F882C001DB for ; Mon, 7 Aug 2023 15:13:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230118AbjHGPNr (ORCPT ); Mon, 7 Aug 2023 11:13:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229823AbjHGPNq (ORCPT ); Mon, 7 Aug 2023 11:13:46 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AE38F10DE for ; Mon, 7 Aug 2023 08:13:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1691421181; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=MSkCa7A9TXUS3VXQ5McnNNZT+8+UROTnmjHayz9OLCM=; b=JBjMEN+KOLXzkZ3v/X0MoX2f8zmm5mrbT9NuLbCJWJ/Mj8BMETFNTvq9aErd6LK+ub7xSk cSoPedaAji1ooq+Tdju3cp+6k7f/cgzxG6nxcn9PFCU+sW21w7+oG3skki67lk6dqAodMz Dpau2LBNCqrXQq8cjqZa13tbUjTZNZ8= Received: from mail-yb1-f198.google.com (mail-yb1-f198.google.com [209.85.219.198]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-620-am5hkzIwPzKxfFRFuq_W2g-1; Mon, 07 Aug 2023 11:08:53 -0400 X-MC-Unique: am5hkzIwPzKxfFRFuq_W2g-1 Received: by mail-yb1-f198.google.com with SMTP id 3f1490d57ef6-d27ac992539so4863411276.3 for ; Mon, 07 Aug 2023 08:08:53 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1691420933; x=1692025733; h=user-agent:in-reply-to:content-disposition:mime-version:references :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=MSkCa7A9TXUS3VXQ5McnNNZT+8+UROTnmjHayz9OLCM=; b=NVAnWzOFGHWRpBDHGHdTFaCgyBHbEEqaWQp2/h67EOEY04VSPaue8hblro4/+Eychp oMK11gIaOElMxZ2Po9LKnZLa+GQC8QszIqgfLDE49N57naM5Sm3dq3An2jYOUu5swGSt GK4mq04srVb6hCSgHQe4tZph6kfZ8o9DfqbUBF0hdQyWO2sAsihs7VFxf1SlsZ0kA7RJ lvyuREBIwYHK4ciC9lya7opRrdJpMkPoLVBbr3etmozOww9redcuebwDn94qvpl1j+3X Fym00XIJE53suNvaDe5+5TY13wdZPuEkNwGKJ44wKS9AKJkyt/xOyIKIZaarnO1VaFkr dAxw== X-Gm-Message-State: AOJu0YzPBbpqO64oSMuah9rJvNAu/U8uBSelKhjyYtjoYQCCX/T0H2I6 cz8mCQx3dp9g3IV8uOxbx2UGRUkWe6P9MVOvjFvM0h6KWIn7h0ggfmKCzsQsaMV6w7BqiWZQazp CMqgptgB1OwSu7ppsvgxmfeoOTw== X-Received: by 2002:a25:29c2:0:b0:c62:2320:2598 with SMTP id p185-20020a2529c2000000b00c6223202598mr8059905ybp.62.1691420933320; Mon, 07 Aug 2023 08:08:53 -0700 (PDT) X-Google-Smtp-Source: AGHT+IEFwHp4dDJnIOl2S3nXfBjqj/u/Iz50+0PkY1Lm8o+KMODDnct/IB/u4h0wbSKzpgdvXF7AeQ== X-Received: by 2002:a25:29c2:0:b0:c62:2320:2598 with SMTP id p185-20020a2529c2000000b00c6223202598mr8059891ybp.62.1691420933058; Mon, 07 Aug 2023 08:08:53 -0700 (PDT) Received: from brian-x1 (c-73-214-169-22.hsd1.pa.comcast.net. [73.214.169.22]) by smtp.gmail.com with ESMTPSA id a10-20020a5b0aca000000b00d1dffdd7a97sm2250323ybr.57.2023.08.07.08.08.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Aug 2023 08:08:52 -0700 (PDT) Date: Mon, 7 Aug 2023 11:08:50 -0400 From: Brian Masney To: Mukesh Ojha Cc: Krzysztof Kozlowski , linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, lkml , Trilok Soni , "open list:ARM/QUALCOMM SUPPORT" , linux-arm-kernel@lists.infradead.org, Alim Akhtar , Kukjin Kim , Vignesh Raghavendra , Nishanth Menon , Matthias Brugger Subject: Re: Feedback on Qualcomm's minidump (debug) solution for end user device crash Message-ID: References: <0199db00-1b1d-0c63-58ff-03efae02cb21@quicinc.com> <15caeb52-b670-9000-fa2b-b8d1b8485016@kernel.org> <81b15738-615d-a039-7bc3-22aa5b3a54bd@quicinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <81b15738-615d-a039-7bc3-22aa5b3a54bd@quicinc.com> User-Agent: Mutt/2.2.9 (2022-11-12) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org On Mon, Aug 07, 2023 at 06:01:27PM +0530, Mukesh Ojha wrote: > On 7/30/2023 5:14 PM, Krzysztof Kozlowski wrote: > > On 24/07/2023 18:59, Brian Masney wrote: > > > + linux-arm-kernel list > > > > > > On Thu, Jul 20, 2023 at 08:32:24PM +0530, Mukesh Ojha wrote: > > > > Hi Samsung/MTK/Any other SOC vendors, > > > > > > > > This is to bring to your notice that, we (Qualcomm) are working on > > > > upstreaming our minidump solution which is to address the problem of > > > > debugging on field device crashes where collecting entire ddr dump > > > > would not be feasible and collecting minimal data from the ddr would > > > > help in debug direction or even help in root causing issue. > > > > > > > > We have recently posted v4 version here [1] > > > > > > > > Based on comments[2], community is more worried about, if each SOC > > > > vendor come up with their own dumping method today or in future and > > > > whether it can have a common solution to a similar problem faced by > > > > other SOC vendor. > > > > > > > > We wanted to take your feedback if you also encounter a similar problem > > > > or maintain something similar solution in downstream which can be > > > > upstreamed. This will help us in a way to have a common solution in > > > > upstream. > > > > > > > > [1] > > > > https://lore.kernel.org/lkml/10dd2ead-758a-89f0-cda4-70ae927269eb@quicinc.com/ > > > > > > > > [2] > > > > https://lore.kernel.org/lkml/CAL_JsqLO9yey2-4FcWsaGxijiS6hGL0SH9VoMuiyei-u9=Cv=w@mail.gmail.com/ > > > > > > Adding the main ARM list to solicit feedback from other silicon > > > manufacturers. > > > > > > The cover sheet on the v4 patch set is available at: > > > https://lore.kernel.org/lkml/1687955688-20809-1-git-send-email-quic_mojha@quicinc.com/ > > > > I doubt anyone follows the lists, so at least Cc some maintainers. > > > > +Cc Alim, Kukjin, Vignesh, Nishanth, Matthias. > > Thanks @Krzysztof/@Brian for extending the list. Hi Mukesh, Since no one has responded yet: I suspect your best bet to land the minidump functionality upstream is to refactor it to use the pstore functionality that Rob suggested: https://lore.kernel.org/lkml/CAL_JsqK7MHR09U5h01=Gf1ZLeDVCgZdN-W1hQRH3AX+E94_uUg@mail.gmail.com/ Brian