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=-4.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 E5C33C433DF for ; Fri, 17 Jul 2020 17:17:43 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B293D206BE for ; Fri, 17 Jul 2020 17:17:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="HQ2nRcsX"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="MAqrX9/P" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B293D206BE Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Type: Content-Transfer-Encoding:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=IRchM2eGObFg26MCFvugzu7QzWNPHkmqB/7tINQs65E=; b=HQ2nRcsXYRswesClDa26DHSWo dPj9VIN7Rr0pu3tHYQqqjWU6j3/oIFWIXcpkFb4Rjh8NzCa9wOhuwfK7v8f+LpZFJOxjLGzqn9Hgn 6tB4u16sC0HCamWtXvvXgmg/9MTyK9ph3jXIt5QsUvi7uSoq3f4kk1wjl3Xy8dWt2kY1YA1XzGUKC HCYWZuYfvy7uUZ9s52j3pxFFCBZCjDQsro7Al1D0TTOvETRhCnviX83jYpBnjzfF0qn2RsY+rbXg0 xYAA+Y66hBKBqR1FV95MVKlchtQiby/T/n9SoTYR2scdypJWSurnssqBKc2b1yJaU6+MOWA25qGQ6 DPjV6qAdQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jwTyB-0002Yf-RE; Fri, 17 Jul 2020 17:16:23 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jwTy8-0002Y6-LF for linux-arm-kernel@lists.infradead.org; Fri, 17 Jul 2020 17:16:21 +0000 Received: from localhost (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 94967206BE; Fri, 17 Jul 2020 17:16:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595006179; bh=BMFDpLiXiIkNg05MYBPfN+bjURAfepPCUIPuHQlUSiY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=MAqrX9/PcmveaIgPJnYWRFY21xgtKg5EMWwxh3g7nMazwXEBJonijbZPHU1R1AQSa sag/nVtSM5RSL7FnVUtetWrUo05JniCdQjp8Hf6CEV9x3VnWZizsBv5sP2Ay/dRjQC vJr/42dT/FSeYxESIvBNs8Ae8GKXBGnAmzp/RL9Y= Date: Fri, 17 Jul 2020 13:16:18 -0400 From: Sasha Levin To: Qais Yousef Subject: Re: [PATCH 4.14 105/136] usb/ehci-platform: Set PM runtime as active on resume Message-ID: <20200717171618.GQ2722994@sasha-vm> References: <20200623195303.601828702@linuxfoundation.org> <20200623195308.955410923@linuxfoundation.org> <20200709070023.GA18414@lxhi-065.adit-jv.com> <20200717161639.37ptgbolborimcvs@e107158-lin.cambridge.arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200717161639.37ptgbolborimcvs@e107158-lin.cambridge.arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200717_131620_773693_984599CA X-CRM114-Status: GOOD ( 12.76 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Tony Prisk , Oliver Neukum , Andrew Gabbasov , Mathias Nyman , linux-pm@vger.kernel.org, Greg Kroah-Hartman , Eugeniu Rosca , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Dirk Behme , Alan Stern , Eugeniu Rosca , linux-arm-kernel@lists.infradead.org Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, Jul 17, 2020 at 05:17:23PM +0100, Qais Yousef wrote: >Hi Eugeniu > >On 07/09/20 09:00, Eugeniu Rosca wrote: >> Hello everyone, >> >> Cc: linux-renesas-soc >> Cc: linux-pm > >[...] > >> After integrating v4.14.186 commit 5410d158ca2a50 ("usb/ehci-platform: >> Set PM runtime as active on resume") into downstream v4.14.x, we started >> to consistently experience below panic [1] on every second s2ram of >> R-Car H3 Salvator-X Renesas reference board. >> >> After some investigations, we concluded the following: >> - the issue does not exist in vanilla v5.8-rc4+ >> - [bisecting shows that] the panic on v4.14.186 is caused by the lack >> of v5.6-rc1 commit 987351e1ea7772 ("phy: core: Add consumer device >> link support"). Getting evidence for that is easy. Reverting >> 987351e1ea7772 in vanilla leads to a similar backtrace [2]. >> >> Questions: >> - Backporting 987351e1ea7772 ("phy: core: Add consumer device >> link support") to v4.14.187 looks challenging enough, so probably not >> worth it. Anybody to contradict this? >> - Assuming no plans to backport the missing mainline commit to v4.14.x, >> should the following three v4.14.186 commits be reverted on v4.14.x? >> * baef809ea497a4 ("usb/ohci-platform: Fix a warning when hibernating") >> * 9f33eff4958885 ("usb/xhci-plat: Set PM runtime as active on resume") >> * 5410d158ca2a50 ("usb/ehci-platform: Set PM runtime as active on resume") > >Thanks for investigating this. > >Alan, Greg, do you have any ideas? I've reverted these 3 commits from 5.4 and earlier, thank you for investigating this issue. -- Thanks, Sasha _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel